Chelonus olgae

Chelonus olgae

authorKokujev, 1895

synonymsCh. schmiedeknechti Szepligeti, 1898

body

shape♀ 7 -9 mm, ♂ 5.5- 6.3 mm [P7]. ♀ 6.5mm [T3]. ♀ 6.6mm [RM]. 6-7mm [Te1].

colorGround colour of body black [P7].

head

shapeThe head is a little wider than the mesosoma, with the temples a little dilated. Clypeus convex with a transverse depression before the anterior edge, which is at a blunt angle [K1]. Head in dorsal view (Fig. 2) transverse, 1.7 times as broad as long, eye somewhat longer than temple, temple moderately rounded, occiput excavated. Ocelli small and round, OOL slightly longer than POL. Eye in lateral view 1.7 times as high as wide, temple beyond eye slightly wider than eye (Fig. 3, see arrows). Malar space a bit longer than basal width of mandible. Face twice as wide as high, inner margin of eyes somewhat diverging ventrally. Clypeus twice as wide below as high medially, its lower margin medially truncate [P7].Head as wide as mesoscutum, with straight temples; width of head 1.7 times its length and 1.1 times its height. Length of temples equal to transverse diameter of eye. OOL longer than base of ocellar triangle plus [?] ocellus diameter; POL 1.5 times ocellus diameter. Longitudinal diameter of eye 1.5 times transverse one, slightly more than twice exceeding height of malar space. Width of face twice its height. Proboscis poorly developed. Length of maxillary palpi equal to height of face with clypeus [T3]. Temple shorter than eye in dorsal view, width of face twice its height [RM]. Ocelli small, OOL = 3 OD [Te1]. Clypeus separated from face by a line-shaped groove [S4, C. schmiedeknechtii]

sculptureVertex and temples roughly striated, striae parallel to the orbits of the eyes, middle of temples is shiny and indistinctly sculpted. The face is a little convex, rugulose in the middle and regularly striolated at the sides. The frontal depression is rather distinct, transversely striated, with a small smooth space near the insertion of each antenna and with a longitudinal keel, which originates between the antennae and reaches only half of the depression. Clypeus shiny, very finely punctated [K1]. ♀: Face along eye rugose, otherwise rugulose, shiny. Clypeus finely punctate, interspaces more or less longer than punctures. Frons rugose, vertex and occiput rugose to rugulose; temple finely punctate, shiny. ♂: Sculpture of head somewhat rougher [P7]. Face and vertex behind ocelli gently granulate-punctate and weakly transversely striate. Temples with strongly smoothened sculpture, lustrous [T3]. Temple with slightly smoothed sculpture (Photo 1); face transversely striate and punctate (Photo 2) [RM].

colorMandibles reddish at base, black at tip - Palpi red [K1]. ♀: Mandible dark rusty, palpi brownish greyish or light brownish yellow. ♂: palpi brown to dark brown [P7]. maxillary palps and mandibles brownish [RM].

antenna

shape ♀Antennae black, recoiled at the end [K1]. Antenna long, nearly as long as to as long as body and with 45 antennomeres. Third segment 3.3 times as long as broad apically, further segments gradually shortening and attenuating so that penultinate segment 1.4-1.6 times as long as broad [P7]. Antennae 38–44-segmented. Antennae very slender, filiform, as long as body, number of their segments over 30; length of 3rd segment 4.0 times its width, 30th segment twice as long as wide [T3]. 38-39 segments [Ay1]. Antennae 45-segmented, as long as length of body, length of the 3rd segment 4.0 times its width, apical segments of antenna twice as long as their width [RM]. 33-44 segments [Te1].

shape ♂Antenna almost as long as body and with 41-44 antennomeres [P7]. Antenna as long as body, setaeceous, 39-45 segments. Basal segments 3-4 times as long as wide [Te1].

color♀: Antenna black with more or less rusty to dark rusty tint. ♂: Antenna black [P7]. ♀ antennae black [T3].

mesosoma

shapeMesonotum almost vertically truncated anteriorly. Propodeum posteriorly almost vertically truncate; the transverse carina is sharp, arched and terminated on each side by a tooth; [K1]. Mesosoma in lateral view 1.6 times as long as high. Transverse carina of propodeum distinct and laterally ending in a small tubercule. [P7]. Length of mesosoma 1.35 times its height. Propodeum with fine transverse carina and small rounded lateral teeth [T3].

sculptureMesonotum very finely rugulose: the notauli are indicated only by the irregular rows of points, sometimes confluent; other confluent points can be seen near the wing insertions. Mesopleurae rather coarsely, not densely punctuated. Mesosternum finely dotted, the larger points near the middle coxae and along the middle [K1]. Scutellum shiny and smooth, covered laterally and towards the tip with very fine longitudinal rugae. The propodeum is is roughly reticulated, without keels [K1]. Mesosoma punctate to confluent punctate, mesoscutum either almost smooth and shiny or laterally finely punctate to uneven, subshiny - Notauli distinct by somewhat roughened sculpture. Scutellum smooth and shiny. Propodeum areolate-rugose [P7]. Mesonotum punctate, with smoothened intervals between punctures; anterior part of mesoscutum weakly and sparsely punctate; punctures much coarser in posterior part, forming there longitudinal rows in places. Scutellum weakly punctate, nearly smooth. Mesopleura more coarsely punctate, with large deepened punctures. Propodeum densely rugose-punctate [T3]. Mesonotum punctate, weakly in anterior part and coarsely in posterior part (Photo 3) [RM].

colorMesosoma entirely yellow-brown, scutellum somewhat dark in the middle [K1]. Mesosoma either almost entirely or partly reddish yellow [P7]. Mesosoma reddish yellow [T3]. Mesosoma reddish (except propodeum), scutellum dark brownish [RM]

legs

shape♀: Hind femur 3.3-3.8 times as long as broad medially (Fig. 4). Inner spur of hind tibia half as long as basitarsus. Hind basitarsus as long as tarsomeres 2 - 4 + half of fifth tarsomere combined. ♂: Hind femur 3.1-3.6 times as long as broad medially (Fig. 9) [P7]. Length of hind femur 4.3 times its width. Hind tibia slightly longer than hind tarsus, its inner spur half as long as 1st segment of hind tarsus. 5th segment of hind tarsus as long as 3rd one [T3].

sculpture

colorLegs black, with varying yellowish-red coloration: Black coxae, fore trochanters brownish, mid and hind trochanters black; fore femora yellowish red, darkened towards the base, hind femora completely black, mid femora red at the tip; the fore and mid entirely yellowish red, the hind tibiae brownish, black on the apical half, with a whitish ring before the base; tarsi reddish, blackened towards the tip, fore tarsi paler [K1]. ♀: Legs blackish brown to brown, femora 1-2 apically reddish yellow; tibiae + tarsi 1-2 light brownish yellow, tarsomeres with brownish suffusion; proximal ring of hind tibia and hind basitarsus almost entirely pale yellow, hind tibia distally blackish. ♂: Dark (i.e. black to dark brown) colour of legs more extended [P7]. Legs mostly dark; hind femur nearly black, hind tibia with yellowish median band [T3]. Hind leg black, hind tibia with a median pale band [RM].

wings

shapeVein r almost twice as short as 3-SR and forms with the latter a straight line. SR1 distinctly arched. r-m is much longer than r, and a little shorter than 3-SR. The 2nd submarginal cell is quite short and wide. The radial vein of the hind wings is strongly curved near the middle [K1]. Fore wing short, 0.6-0.7 times as long as body. Pterostigma (Fig. 5) 2.8 times as long as wide, issuing r distally from its middle; 3-SR twice to almost twice as long as r, 1-R1 one-fourth to a bit shorter than pterostigma [P7]. Marginal cell of fore wing 1.5 times as large as 2nd submarginal cell, 1-R1 nearly as long as pterostigma; 3-SR 0.7 times as long as r[?], 0.42 times as long as SR1, and 0.83 times as long as 2SR; SR1 bends towards radial cell [T3]. 1-R1 slightly shorter than pterostigma (Photo 4) [RM]. 1-R1 equal to pterostigma length [Te1].

colorTegulae red. Wings slightly smoky, with a colorless line below the pterostigma and two similar ones, one on the vein r-m, the other in the marginal cell; parastigma and veins in basal region yellowish, midline veins and stigma dark brown [K1]. Wings subfumous, pterostigma dark brown to brown, parastigma yellow, veins proximo-distally yellow to brownish yellow [P7]. Wings infuscate, basal half with pale yellowish veins [RM]. Wings light, tegulae brown, basal veins yellow [Te1].

metasoma

shapeMetasoma elongated, longer than the head with the mesosoma, obliquely truncated at the base, very slightly widened towards the middle and then considerably narrowed towards the extremity where it is rounded and almost half as wide as at the base. The metasoma is somewhat convex, with traces of the two sutures. Two weak basal carinae. The apex of the metasoma is separated by a deep transverse depression and its surface is almost at the level of half the height of the metasoma (fig. 1a). The ♀ ventral segments are compressed into a keel and protrude beyond the metasoma (Fig. 1b). [K1]. ♀: Carapace in dorsal view (Fig. 6) 2.7 times as long as broad anteriorly, here carapace weakly broadening, posterior half of carapace narrowing and apically pointed. Pair of basal keels indistinct. Carapace in lateral view (Fig. 7) 3.3 - 3.7 times as long as high behind, apically not incurved (Fig. 8), i.e. aparture of carapace as long as carapace itself. ♂: Carapace in dorsal view (Fig. 10) 2.2 - 2.4 times as long as broad behind, just broadening posteriorly, apically rounded. Carapace in lateral view (Fig. 11) 2.8 - 3.1 times as long as high behind, apically incurved (Fig. 12) [P7]. Metasoma narrowed towards apex approximately from anterior third (fig 13), its apex with ledge separated by transverse furrow. Length of metasomal carapace 4.0 times its height (maximum in posterior third), 2.6 times its width (maximum in anterior third); posterior part of carapace with transverse deepened furrow. Apical sternites slightly projecting from under carapace [T3]. Metasomal distinctly narrowed apically (photo 5); length of metasoma 2.5 times its maximum width in anterior third, apical sternites slightly projecting from under carapace (photo 6) [RM]. Metasoma longer than head and mesosoma together, sharply narrowed toward apex [Ay1].

sculptureBase of metasoma longitudinally rugose and reticulate. The sculpture becomes weaker and less distinct towards the end. The apex, separated by the depression, is almost smooth and shiny [K1]. Anterior third of carapace longitudinally rugose with striate elements, posterior two-thirds of carapace densely rugose to rugulose (Fig. 6) [P7]. Metasoma densely and rather coarsely punctate, with longitudinal rugae in basal half [T3]. Metasoma densely and rather coarsely punctate, with longitudinal rugae in basal half (photo 5) [RM].

colorBlack, two small yellow-brown spots at the base [K1]. Metasoma brown, with pair of yellow basal spots [T3]. Metasoma black with two indistinct brownish spots [RM].

♀ ovipositorOvipositor sheath short [P7]. Ovipositor straight [S4, schmiedeknechtii]

♂ aperture

other info

distributionDE [FE].

remarks

hosts

figures

fig. 1: metasoma, lateral view (Kokujev 1895)	fig. 2: head in dorsal view with indication of its sculpture (Papp 2003b)	fig. 3: head in lateral view (Papp 2003b)
fig. 4: hind femur of female (Papp 2003b)	fig. 5: distal part of right fore wing (Papp 2003b)	fig. 6: female carapace in dorsal view with indication of its sculpture (Papp 2003b)
fig. 7: female carapace in lateral view (Papp 2003b)	fig. 8: posterior end of female carapace in ventral view (Papp 2003b)	fig. 9: hind femur of male (Papp 2003b)
fig. 10: male carapace in dorsal view (Papp 2003b)	fig. 11: male carapace in lateral view (Papp 2003b)	fig. 12: posterior end of male carapace in ventral view (Papp 2003b)
fig. 13: metasoma, dorsal view (Tobias 2011)	fig. 14: ♀ habitus, dorsal view (Telenga 1941)

references

code	reference	type of info	named as
Ay1	Aydoğdu 2008	k
K1	Kokujev 1895	Tf
P7	Papp 2003b	Rf
RM	Rajabi Mazhar et al. 2018	dp
S1	Szepligeti 1908	k
S4	Szepligeti 1898	Tk	Chelonus schmiedeknechtii
Te1	Telenga 1941	dkf
T16	Tobias 1972a	kf
T3	Tobias 2011	dkf
T4	Tobias 1986	kf
FE	van Achterberg 2021	Fauna Europaea
legend:	Type description \| Redescription \| description \| in key \| comment \| nom. nov. \| figure(s) \| photo(s)

links

Fauna Europaea

photos

fig. 1: head, dorsal view (Rajabi Mazhar et al. 2018)	fig. 2: head, frontal view (Rajabi Mazhar et al. 2018)
fig. 3: mesosoma, dorsal view (Rajabi Mazhar et al. 2018)	fig. 4: fore wing (Rajabi Mazhar et al. 2018)
fig. 5: metasoma, dorsal view (Rajabi Mazhar et al. 2018)	fig. 6: ♀ habitus, lateral view (Rajabi Mazhar et al. 2018)

type description

Kokujev 1895

Chelonus Olgae n. sp.

Elongatus, postice attenuatus, tenuiter pubescens. Capite abdomïneque nigris, hoc maculis 2 parvis basalïbus thoraceque dilute testaceis. Capite rugoso-striolato, genis in medio tenuissime et indistincte sculpturatis, fere politis. Facie lenityer convexa, in medio tenuiter rugosa. Fronte sut impressa, transversim striata, pone antennas laeviore et usque ad medium carinata. Clypeo discreto, convexo, laevi, tenuiter punctulato, ante apicem transversim impresso, apice leniter angulato. Palpis rubris. Mesonoto tenuissime, tegulas versus distincte rugoso-punctulato, sulcis obsoletis rugulis tenuibus compensatis. Mesopleuris punctatis. Mesostcrno tenuiter punctulato, pone coxas anticas et medium versus punctis majoribus intermixtis. Metanoto reticulato, haud carinato, postice abrupte declivi, margine declivitalis acuto, arcuato et utrinque leniter angulato. Tegulis rufis. Alis leviter infumatis, lineis translucidis sub stigmate et juxta nervum 2um transverso-cubitalem et in cellula radiali signatis; stigmate brunneo; parastigmate luteo; abscissa 1a radii 2a duplo breviore atque cum hac lincam rectam efficiente; abscissa 3a curvata. Radio alarum inferiorum in medio valde curvato.

Abdomine elongato, basin versus oblique declivi, usque ad medium parum sensimque subdilatato, deinde apicem versus valde angustato; basi bicarinata duplo latiore quam apex; hoc distinctissime coarctato, gibboso, gibbulo subter superficie superna abdominis posito. Pedibus nigris, luteo-variegatis: coxis nigris, trochanteribus anterioribus brunneis, intermediis posticisque nigris; femoribus anterioribus luteis basin versus infuscatis, posticis totis nigris, intermediis nigris summo apice luteis; tibiis anterioribus intermediisque totis luteis, posticis brunneis apice late nigris et ante basin annula albido ornatis; tarsis luteis, unguiculos versus nigrescentis, anterioribus dilutioribus.

♀ Antennis nigris, tenuibus, longis (corporis longitudine?), apice spiraliter contortis (in individuo nostro unico antennae incompletae, tantummodo 38-articulatae). Segmentis ventralibus carinato-compressis, valde exsertis.

Long. 7 mm. (capitis thoracisque 3 mm., abdom. 4 mm.); exp. alar. 9 mm.

Le corps est allongé, étroit, assez rétréci vers l'extrémité de l’metasoma, très finement pubescent. La tête et l’metasoma sont noirs; deux petites taches à la base de celui-ci et le mesosoma sont entièrement d’un testacé jaunâtre. - La tête est un peu plus large que le mesosoma, avec les joues un peu dilatées. - Vertex et joues rugueuseinent striolés, les stries parallèles aux orbites des yeux: le milieu des joues est luisant et indistinctement sculpté.— La face est un peu convexe, couverte au milieu d’une fine rugosité et irrégulièrement striée aux côtés. — La dépression frontale est assez déterminée, transversalement striée, avec un petit espace lisse près de l’insertion de chaque antenne et pourvue d’une carène longitudinale, qui prend naissance entre les antennes et n'atteint que la moitié de la dépression.— Épistome distinctement limité, convexe, luisant, très finement pointillé, avec une dépression transversale avant l’extrémité, qui est en angle émoussé. — Mandibules rougeâtres à la base, noires à l’extrémité —Palpes rouges. — Les flancs du promesosoma sont rugueusement ponctués.—Mesonotum presque verticalement tronqué en avant, où il est couvert d’une rugosité excessivement fine et indistincte: les sillons, effacés, ne sont indiqués que par les rangées irrégulières de points, parfois confluents; on voit près des insertions des ailes d’autres points confluents. — Mesopleures assez grossièrement ponctuées, les points peu serrés. — Mesosternum finement pointillé, les points plus grands près des hanches intermédiaires et le long du milieu. —

Scutellum luisant, lisse et un peu assombri au milieu, couvert latéralement et vers l’extrémité de très fines rides longitudinales. — Metamesosoma formant postérieurement une pente presque verticale; le bord supérieur de cette pente est tranchant, arqué et terminé de chaque côté par un angle; la surface est grossièrement réticulée, sans carènes. — Écaillettes rouges. —Ailes légèrement enfumées, avec une ligne incolore sous le stigma et deux autres pareilles, l'une sur la 2-ème nervure transverso-cubitale, l’autre dans la cellule radiale; parastigma et nervures de la région basilaire jaunâtres, nervures de la région médiane et le stigma d'un brun foncé; la 1-ère abscisse de la nervure radiale est presque deux fois plus courte que la 2-ème et forme avec celle-ci une ligne droite, la 3-ème abscisse distinctement arquée; la 2-ème nervure transverso-cubitale et beaucoup plus longue que la 1-ère abscisse de la radiale et un peu moins longue que la 2-ème; la 2-ème cellule cubitale est assez courte et large. — La nervure radiale des ailes inférieures est fortement courbée près du milieu.

metasoma allongé, plus long que la tête avec le mesosoma, largement sessile, obliquement tronqué à la base très faiblement élargi jusqu à la moitié, puis considérablement rétréci vers l’extrémité où il est arrondi et presque deux fois moins large qu’à la base. — La surface de l’metasoma est modérément convexe, avec la trace de deux sutures; la pente basale est limitée latéralement par deux faibles carènes, dont les extrémités se perdent dans les rides longitudinales qui couvrent comme à l’ordinaire la base de l’metasoma; ces rides, ainsi qu’on le voit dans les autres espèces, sont entrelacées d’autres rides, transversales, moins destinctes, et forment avec celles-ci un réseau; la sculpture devient de plus en plus faible et moins distincte vers l’extrémité; celle-ci est séparée par une profonde dépression transversale et sa surface est presque au niveau de la moitié de la hauteur de l’metasoma (fig. 2 a); cette partie est à peu près lisse et luisante.— Pattes noires, variées de rouge jaunâtre: hanches noires; trochanters antérieurs brunâtres, les deux paires postérieures noires; cuisses antérieures d’un rouge jaunâtre, rembrunies vers la base, les postérieures entièrement noires, les intermédiaires rouges à l’extrémité; les 4 tibias antérieurs entièrement d’un rouge jaunâtre, les postérieurs brunâtres, noirs sur la moitié apicale, avec un anneau blanchâtre avant la base; tarses rougeâtres, noircis vers l’extrémité, les antérieurs plus clairs.

♀. Antennes noires, recoquillées à l’extrémité (dans l’unique individu que j’ai sous les yeux elles sont défectueuses à l’extrémité, un peu plus courtes que le corps et il n’y reste que 38 articles). Les segments ventraux sont comprimés en carène et saillants au delà de l’metasoma (fig. 2 b).

Découvert par M. L. F. Mlokossewitsch à Lagodechi (Transcaucasie, gouv. de Tiflis).

Data used in the multi-access key

These data are collected from the species descriptions and redescriptions, from published figures and photographs and from own measureements and observations. For a description of the different variables and value classes see this pdf.

morphology
basic information	female	male
body length (mm):	(6) 6 - 8 (9)	(6) 6 - 8 (9)
number of antennal segments:	(38) 38 - 45	(39) 39 - 45
head, dorsal view
Head width : length	very narrrow, narrow	very narrrow, narrow
Temples narrowing - widening	parallel	parallel
Eye length : temple length	1.0 - 1.25, > 1.25	1.0 - 1.25, > 1.25
Roundness temple	medium, weak, very weak	medium, weak, very weak
POL : OD	<= 2, 2 - 3	<= 2, 2 - 3
Ocellar triangle shape	very narrow, narrow	very narrow, narrow
Excavation of head	15 - 25%	15 - 25%
head, lateral view
Head height : length	very short	very short
Eye height : length	short	short
Temple length : eye length	very short, short	very short, short
head, frontal view
Head width : height	very narrow, narrow, wide	very narrow, narrow, wide
Face width : height	wide	wide
Eyes converging ventrally	about parallel, distinctly diverging	about parallel, distinctly diverging
EH : MSL	very short, short, long	very short, short, long
Clypeus width : height	transverse, very transverse	transverse, very transverse
Clypeus extending above bottom of eyes	below	below
Tentorial pits	very small	very small
Shape of lower margin clypeus	truncate	truncate
antennae
Antennal shape	filiform, not widened	filiform, not widened
Segment 3 length : width	medium, long	medium, long
Penultimate segment length : width	medium, long	---
Length of antenna : length of body	3: long, 4: very long	4: very long
mesosoma, lateral view
Length : height	medium, long	medium, long
transverse carina	well developed	well developed
lateral teeth	weak, small, short, present	weak, small, short, present
mesosoma, ventral view
Prepectal carina lamelliform	indistinct	indistinct
legs
Hind femur length : width ratio	medium, long	medium, long
Hind tibia length : hind tarsus length ratio	medium, long	medium, long
Hind tibia (longest) spur length : metatars length ratio	long	long
wings
Vein 1-R1 length : pterostigma length	medium, long	medium, long
Vein r length : vein 3-SR length	short	short
Shape vein SR1 (straight / concave / convex)	slightly concave, straight or S-shaped	slightly concave, straight or S-shaped
S-shape vein SR1	not S-shaped	not S-shaped
cell M : cell Sm2	Sm2 large	Sm2 large
Pterostigma length : width ratio	short, medium, long	short, medium, long
Angle between radial vein (r) : vein 1-R1	sharp, medium	sharp, medium
metasoma, dorsal view
Length : width ratio of metasoma	long	long
Shape of metasoma	narrowing to apex	narrowing to apex, widest in middle
metasoma, lateral view
Length : height ratio of metasoma	long	medium
posterior : anterior height ratio of metasoma	small	medium
Position of maximum height	medium, medium-posterior	medium-posterior, posterior
metasoma, ventral view
Metasoma posteriorly curved forwards	(almost) not incurved	just/slightly incurved, (distinctly) incurved
male apical aperture
Aperture width : metasoma width	no aperture	no aperture
Aperture shape	n. a.	n. a.
Median process shape	n. a.	n. a.
sculpture
head
general coarseness	fine, medium	fine, medium
clypeus
coarseness punctation	punctulate, punctate	punctulate, punctate
density punctation	---	---
face
sculpture type	rugose	rugose
sculpture direction	irregular, transverse-longitudinal	irregular, transverse-longitudinal
vertex and temple
sculpture type	transverse rugulose, rugulose	transverse rugulose, rugulose
mesonotum
sculpture type	notauli slightly distinct	notauli slightly distinct
scutellum
middle	smooth	smooth
lateral	punctate	punctate
metasoma
base - mid sculpture	longitudinally rugose / rugose-striate , rugose / reticulate	longitudinally rugose / rugose-striate , rugose / reticulate
sculpture at apex	rugulose, smooth	rugulose, smooth
coarse / fine boundary	base (to 50%)	base (to 50%)
color
head
mandibles color pattern	dark tip	dark tip
palpi, lightest color	brown, red, light brown, brownish yellow	brown, red, light brown, brownish yellow
antennae
scapus, lightest color	black, dark brown, brown, red	black, dark brown, brown, red
segment 3 and 4, lightest color	black, dark brown	black, dark brown
legs
fore coxae lightest colour	dark	dark
fore femur lightest colour	medium dark, medium light	medium dark, medium light
fore femur color pattern	tip light, base dark	tip light, base dark
hind femur lightest colour	dark	dark
hind femur color pattern	entirely dark	entirely dark
hind tibia lightest colour	light	light
hind tibia color pattern	narrow light ring	narrow light ring
hind basitarsus lightest colour	light	light
hind tarsus segment 2-3 lightest colour	medium dark	medium dark
wings
middle veins lightest colour	dark, medium dark	dark, medium dark
basal veins lightest colour	light	light
metasoma
metasoma colour pattern	color only on basal third	color only on basal third
metasoma lightest colour	medium dark, medium light	medium dark, medium light
metasoma base, colour pattern	1, 2 or 4 spots	1, 2 or 4 spots
metasoma base, light spots	2 small spots	2 small spots
metasoma base, light band	n.a.	n.a.

Chelonus olgae in published keys

T3: Tobias 2011

Genus Chelonus Jurine (Hymenoptera, Braconidae, Cheloninae) in the Fauna of Russia and Adjacent Territories. Ch. olgae Kok. Species-group.

T4: Tobias, 1986

Key to the Insects of the European Part of the USSR Volume III. Hymenoptera. Part four. Chapter 16

P7: Papp 2003b

Revision of Szépligeti's Chelonus s. str. species described from Hungary (Hymenoptera: Braconidae: Cheloninae).

Ay1: Aydogdu 2008

A new species of the genus Chelonus Panzer, 1806 (Hymenoptera: Braconidae: Cheloninae) from Western Anatolia (Turkey).