Chelonus temporalis

Chelonus temporalis

author(Tobias, 1986)

synonyms

body

shape♂ 2.9 - 3.8 mm [T1][Zh1]. ♀ 3.0 - 3.3 [T4]. 3.3 - 3.9 [TL]. ♀ 3.6 - 4.4, ♂ 3.4 - 3.8mm [T14].

colorBody black

head

shapeHead a little broader than mesonotum, in dorsal view 1.65 - 1.7 times as broad as long. Temple 2 - 2.3 times longer than eye in dorsal view. Ocellar triangle as broad as OOL. Distance between hind ocelli 2.5 times longer than diameter of an ocellus. Eye 1.7 times as long as wide in lateral view, 1.7 times longer than malar space. Face about 1.7 times as broad as high, 1.5 times as wide as longitudinal diameter of eye. Maxillar palps as long as height of face with clypeus [T1]. Temples distinctly developed, 2 times as long as eye or slightly shorter; genae less than half as long as eye. Face with small longitudinal median carina; its height 1/2 its width. [T4]. ♂ Elongate-narrowed behind eyes, about temples narrower than about eyes, 1.4 times as broad as long, in frontal view about as broad as high, a little broader than mesosoma. Temples twice longer than LO. In frontal view eye 2.5 times as high as long, 1.5 times as long as malar space. Face 1.5 times as broad as high and about twice as broad as LD, twice higher than clypeus. Maxillary palpi as long as height of face and clypeus combined [TL]. Head slightly wider than mesonotum, with almost straight, usually parallel temples behind eyes, 1.65–1.7 times as wide as long. Temples from above 2–2.3 times as long as eye. The width of the ocellar triangle is OOL. POL 2.5 times ocellus diameter. Longitudinal diameter of eye 1.7 times transverse, 1.7 times height of malar space. Face width 1.7 times its height, 1.5 times the longitudinal diameter of the eye. Maxillary palps equal to height of face with clypeus. The shape of the head from above is quite variable: the temples are either parallel, but not rounded in the back, or rounded, or the head behind the eyes with long and straight temples, but narrowed [T14].

sculptureHead not roughly sculptured, faintly shiny. Vertex behind ocelli and temple transversely striato-rugulose. Face with irregular concentric strigosity. Clypeus subpunctate, shining [T1]. Head behind ocelli with fine transverse striations. Face densely punctate, matte, with a few short wrinkles; clypeus sparsely punctate, lustrous [T4]. Head densely punctate. Face weakly shining with irregular concentric strigosity, about eyes with some fine longitudinal sculpture. Vertex transversely striate. Temple finely longitudinally striate. Clypeus finely punctate, shining [TL]

colorPalpi dark-brown

antenna

shape ♀Antenna as long as body. Third segment 3.5 times as long as broad, 8 - 16 or 9 - 16 segments twice as long as broad, narrowing to apical part of flagellum [T1][T14]. Antennal flagella moderately thin, approximately half as thin as basal segment (Fig. 3) [T4].

shape ♂Antenna as long as body, with 20 - 21 segments. Third segment three times as long as broad, further segments gradually attenuating and shortening so that penultimate segment 1.5 - 2 times as long as broad [T1]. Antennae with 21-22 segments, almost as long as body; scape widened, twice as wide as flagellum, 3 times as long as wide; 3rd segment 3 times as long as wide, apical segments 1.5-2 times as long as wide [TL]. Antennae almost equal to body length, 21-22-segmented; length of 3rd antennal segment 3 times its width, segments in its apical part 1.5–2 times [T14].

color

mesosoma

shape♂ Mesosoma 1.35 - 1.4 times as long as high. Propodeum with weak transverse keel ending in a pair of rounded tubercles [T1][T14]. ♀ Mesosoma 1.3 times as long as high. Propodeum with transverse ridge, with 2 small lateral and 2 weak median denticles [T4]. ♂ 1.3 times as long as high. Propodeum with two medial longitudinal carinas (ending at the transversal carina and looking like two well-developed teeth) and a pair of small lateral tubercles [TL].

sculptureMesosoma rather roughly sculptured. Mesonotum in front of scutellum reticulate-rugose, with longitudinal elements. Scutellum roughly sculptured [T1]. Mesonotum rather roughly sculptate. Scutum anteriorly densely punctate, area before scutellum with coarser longitudinal rugosity. Sides of mesonotum roughly rugose-punctate. Scutellum roughly sculptate. Propodeum rugose sculptured, without longitudinal elements [TL]

color

legs

shapeHind femur 3.5 times as long as broad, fifth hind tarsal joint longer than third, but shorter than second joint [T1]. Hind femur 3.5 times as long as broad. Outer and inner spurs of hind tibiae almost equal, about 1/2 of 1st metatarsal segment, 5th segment as long as 4th, 1.2 times shorter than 2nd [TL].

sculpture

colorFore tibia and basal part of middle tibia yellow-brown or brown. Bigger part of middle tibia and all tarsi brown. Hind tibia dark brown, on basal part sometimes yellowish [T1]. ♀ tibiae brownish yellow, except for brown apices of hind and occasionally of middle tibiae [T4]. Coxae dark, almost black; fore femora brown with yellowish apex, tibiae yellowish, tarsi yellowish with brown apex; hind femora dark-brown with yellowish apex; tibiae brownish with yellowish basal part; tarsi brown with dark-brown apex [TL]. Fore tibia and basal half of middle tibia yellowish brown or brown. Hind tibia entirely dark-colored or with indistinct, non-contrasting yellowish-brown band [T14].

wings

shapePterostigma 1.1 times as long as1-R1; 3-SR much shorter than r, rarely equal to r; SR1 almost straight, twice as long as r-m [T1]. 1-R1 as long as length of pterostigma. 2nd submarginal cell comparatively small, about twice smaller than marginal cell. 3-SR almost as long as r, 5 times shorter than SRI. 1-CU1 shorter than cu-a [TL]

colorWings infumate. Pterostigma and veins brown, mediocubital and basal veins light brownish [T1]. Wings infuscate. Pterostigma dark-brown, veins brown [TL]. The wings are darkened [T14].

metasoma

shape♂ Carapace slightly broadening posteriorly, apically incurved ventrally on 0.16 its length, in dorsal view 1.8 - 1.9 times as long as maximum breadth, in lateral view 3.3 times as long as maximum height. ♀ Carapace 1.7-1.8 times as long as broad [T1]. Metasoma almost 2 times as long as wide [T4]. ♂ Carapace oval-elongate, apically incurved on its 0.15 length, twice (or a little more) as long as maximal broad. In lateral view about twice as high posteriorly as anteriorly [TL]. ♀: Metasoma not more that twice as long as wide, ♂: the length of the metasoma is twice its width [T14].

sculptureCarapace longitudinally rugoso-rugulose, the apical third rugulose, without longitudinal elements [T1]. Metasoma with longitudinal rugae, reaching up to its middle [T4]. Carapace longitudinally rugose-rugulose with winding undulations at its 2/3, apex without longitudinal elements [TL].

color

♀ ovipositor

♂ apertureApical aperture beanshaped or oval, about half as wide as carapace, sometimes a little wider, 1.8 - 2.5 times as wide as high [T1]. In back view of posterior end AMA bean-shaped (or almost oval), about 0.6 as broad as carapace; in lateral view about 1/6 length of carapace [TL]. The apical aperture is oval, 0.6–0.65 times as wide as the metasoma; the height of the apical aperture is 0.4–0.5, rarely almost 0.3 times the width [T14].

other info

distributionAT [FE], Central Europe, Russia (European Part, Far East) [TL].

remarks

hosts

figures

fig. 1: head in dorsal view (Tobias 1994a)	fig. 2: ♂ posterior end of carapace (Tobias 1994a)	fig. 3: antenna (Tobias 1986)
fig. 4: ♂ head in dorsal view (Tobias & Lozan 2003)	fig. 5: ♂ carapace in dorsal view (with sculpture) (Tobias & Lozan 2003)	fig. 6: ♂ carapace in lateral view (Tobias & Lozan 2003)
fig. 7: ♂ carapace, posterior end (Tobias & Lozan 2003)	fig. 8: ♂ part of fore wing (Tobias & Lozan 2003)	fig. 9: ♀ head, dorsal view (Tobias 2000)
fig. 10: ♀ apical part of antenna (Tobias 2000)	fig. 11: ♀ part of fore wing (Tobias 2000)	fig. 12: ♀ hind femur (Tobias 2000)
fig. 13: ♀ metasoma, dorsal view (Tobias 2000)	fig. 14: ♀ metasoma, lateral view (Tobias 2000)

references

code	reference	type of info
T1	Tobias 1994a	Rf
T4	Tobias 1986	Tkf
T13	Tobias 2000	k2f
T14	Tobias 2010	dk
TL	Tobias & Lozan 2003	dkf
Zh1	Zhang 2008	dk
FE	van Achterberg 2021	Fauna Europaea
legend:	Type description \| Redescription \| description \| in key \| comment \| nom. nov. \| figure(s) \| photo(s)

links

Fauna Europaea

photos

type description

Tobias 1994a

Microchelonus temporalis TOBIAS stat. rev.

Material. Austria: 5 ♀♀, 11 ♂♂, Stmk., 345, Mariahof, 1000 m, Waldlichtung-, 14.7.75, leg. Fischer; 2 ♀, 12 ♂♂, Stmk., 289, Muhr Teich, Zeutschach, Waldlichtung, 1000 m, 14.7.57, leg. Fischer; 1 ♀, 2 ♂♂, Stmk., 258, Tischbach, Ofenluger, Kleewiese, 1000 m, 5.8.74, leg. Fischer; 1 ♀, 1 ♂, Stmk., (48), Drauenberg a. d. Enns, Osthang, 750 m, überwiegend sonnig, 10.7.1970, leg. Fischer; 1 ♀ , 2 ♂♂, Stmk, 292, Kalkberg b. Zeutschach, 1150 m, Waldlichtung, 18.7.75, leg. Fischer; 1 ♂, Kärnten, 344, Rudolfshöhe, Huttenberg, Knappenberg, 1000 m, 11.7.77, Fischer; 2 ♂♂, Stmk. (55), Gesäuse, Jonsbachbrücke, 650 m, windstill, sonnig, 8.7.1970, leg. Fischer; 1 ♂, Stmk., Mödlinger Hütte (44), Ennstaler Alpen, 1500 m, sonnig warm, 22.7.1970, leg. Fischer; 1 ♂, Stmk., 270, Mariahof bis Furtner Teich, 900-1000 m, 7.7.71, leg. Fischer; 1 ♂, Stmk., 263, Fischbach, Falkenstein, Ofenluger, 1000 m, 15.8.74, leg. Fischer; 1 ♂, Salzburg, Parsch, 26.6.1968, P.P. Babiy leg. an Busch; 1 ♂, Alt-Schlaining, Bgld., 12.8.58, leg. Fischer; 1 ♂, Mischendorf, Bgld., 6.8.1958, Fischer (all NMV).

Description. Male. Body 2.9 - 3.8 mm long. Head a little broader than mesonotum, in dorsal view 1.65 - 1.7 times as broad as long. Temple 2 - 2 . 3 times longer than eye in dorsal view. Ocellar triangle as broad as OOL. Distance between hind ocelli 2.5 times longer than diameter of an ocellus. Eye 1.7 times as long as wide in lateral view, 1.7 longer than malar space. Face about 1.7 times as broad as high, 1.5 times as wide as longitudinal diameter of eye. Maxillar palps as long as height of face with clypeus. Antenna as long as body, with 2 0 - 2 1 joints. First flagellar joint three times as long as broad, further joints gradually attenuating and shortening so that penultimate joint 1.5 - 2 times as long as broad. Mesosoma 1.35 - 1.4 times as long as high. Propodeum with weak transverse keel ending in a pair of rounded tubercles. Pterostigma 1.1 times as long as length of radial cell along metacarp; r2 much shorter than r l , rarely equal to r l ; r3 almost straight, twice as long as rail. Hind femur 3.5 times as long as broad, fifth hind tarsal joint longer than third, but shorter than second joint. Carapace slightly broadening posteriorly, apically incurved ventrally on 0.16 its length, in dorsal view 1.8 - 1.9 times as long as maximum breadth, in lateral view 3.3 times as long as maximum height. Apical aperture beanshaped or oval, about half as wide as carapace, sometimes a little wider, 1.8 - 2.5 times as wide as high.

Head not roughly sculptured, faintly shiny. Vertex behind ocelli and temple transversely striato-rugulose. Face with irregular concentric strigosity. Clypeus subpunctate, shining. Mesosoma rather roughly sculptured. Mesonotum in front of scutellum reticulate-rugose, with longitudinal elements. Scutellum roughly sculptured. Carapace longitudinally rugoso-rugulose, the apical third rugulose, without longitudinal elements.

Body black. Fore tibia and basal part of middle tibia yellow-brown or brown. Bigger part of middle tibia and all tarsi brown. Hind tibia dark brown, on basal part sometimes yellowish. Wings infumate. Pterostigma and veins brown, mediocubital and basal veins light brownish.

Distinction of female. Antenna as long as body. First flagellar joint 3.5 times as long as broad, 8 - 16 or 9 - 16 joints twice as long as broad, to apical part of flagellimi refined. Carapace 1.7-1.8 times as long as broad.

Remarks. PAPP (1990) synonymised M. temporalis TOBIAS with Chelonus rugicollis THOMSON, but the lectotype of M. rugicollis (THOMSON) designated by PAPP (1990) is a male, while M. temporalis was described from a female (TOBIAS 1986); and the male of M. temporalis was unknown. The big series of M. temporalis from Austria corresponding to the holotype essentially differ from lectotype of M. rugicollis. Head of M. rugicollis in dorsal view "twice as broad as long, eye as long as temple" (PAPP 1990: p. 314, fig. 314), but head of M. temporalis 1.65 - 1.7 times as broad as long and temple 2 - 2 . 3 times longer than eye (fig. 5). Apical aperture of lectotype carapace "almost three times as wide as high" (PAPP 1990: p. 315), but apical aperture of male carapace of M. temporalis 1.8-2.5 times as wide as high (fig. 6). These characters of M. temporalis are not consistent with the synonym of this species and M. rugicollis.

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):	(2.8) 2.8 - 3.8 (4)	(2.8) 2.8 - 3.8 (4)
number of antennal segments:	16	20 - 22
head, dorsal view
Head width : length	narrow	narrow
Temples narrowing - widening	narrowing, parallel	narrowing, parallel
Eye length : temple length	<= 0.75, 0.75 - 1.0	<= 0.75, 0.75 - 1.0
Roundness temple	strong, medium, weak, very weak	strong, medium, weak, very weak
POL : OD	<= 2, 2 - 3	<= 2, 2 - 3
Ocellar triangle shape	narrow, wide	narrow, wide
Excavation of head	15 - 25%, 25 - 35%, > 35%	15 - 25%, 25 - 35%, > 35%
head, lateral view
Head height : length	---	---
Eye height : length	very short	very short
Temple length : eye length	---	---
head, frontal view
Head width : height	very narrow	very narrow
Face width : height	very narrow, narrow	very narrow, narrow
Eyes converging ventrally	---	---
EH : MSL	very short, short	very short, short
Clypeus width : height	---	---
Clypeus extending above bottom of eyes	---	---
Tentorial pits	---	---
Shape of lower margin clypeus	---	---
antennae
Antennal shape	filiform, not widened	filiform, not widened
Segment 3 length : width	medium, long	medium
Penultimate segment length : width	long	medium, long
Length of antenna : length of body	4: very long	4: very long
mesosoma, lateral view
Length : height	short, medium	short, medium
transverse carina	present	present
lateral teeth	weak, small, short	weak, small, short
mesosoma, ventral view
Prepectal carina lamelliform	indistinct	indistinct
legs
Hind femur length : width ratio	medium	medium
Hind tibia length : hind tarsus length ratio	---	---
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, apically convex
cell M : cell Sm2	Sm2 medium, Sm2 small	Sm2 medium, Sm2 small
Pterostigma length : width ratio	short, medium	short, medium
Angle between radial vein (r) : vein 1-R1	medium, blunt	medium, blunt
metasoma, dorsal view
Length : width ratio of metasoma	short, medium	medium, long
Shape of metasoma	widest towards apex	widest towards apex
metasoma, lateral view
Length : height ratio of metasoma	medium, long	medium, long
posterior : anterior height ratio of metasoma	medium, large	medium, large
Position of maximum height	medium-posterior, posterior	medium-posterior, posterior
metasoma, ventral view
Metasoma posteriorly curved forwards	(distinctly) incurved	(distinctly) incurved
male apical aperture
Aperture width : metasoma width	no aperture	medium
Aperture shape	n. a.	(nearly) round, oval
Median process shape	n. a.	vertical carina
sculpture
head
general coarseness	---	---
clypeus
coarseness punctation	punctulate	punctulate
density punctation	---	---
face
sculpture type	rugose, punctate	rugose, punctate
sculpture direction	irregular, diagonal/concentric	irregular, diagonal/concentric
vertex and temple
sculpture type	striate (striolate)	striate (striolate)
mesonotum
sculpture type	notauli slightly distinct	notauli slightly distinct
scutellum
middle	rugose / striate	rugose / striate
lateral	rugose / striate, reticulate / crenate	rugose / striate, reticulate / crenate
metasoma
base - mid sculpture	longitudinally rugose / rugose-striate , rugose / reticulate	longitudinally rugose / rugose-striate , rugose / reticulate
sculpture at apex	rugulose	rugulose
coarse / fine boundary	base (to 50%), mid (50 - 70%)	base (to 50%), mid (50 - 70%)
color
head
mandibles color pattern	---	---
palpi, lightest color	black, dark brown	black, dark brown
antennae
scapus, lightest color	black, dark brown	black, dark brown
segment 3 and 4, lightest color	black, dark brown	black, dark brown
legs
fore coxae lightest colour	dark	dark
fore femur lightest colour	medium light	medium light
fore femur color pattern	tip light	tip light
hind femur lightest colour	medium light	medium light
hind femur color pattern	tip light	tip light
hind tibia lightest colour	dark, medium light	dark, medium light
hind tibia color pattern	entirely dark, narrow light ring, narrow light base, wide light base	entirely dark, narrow light ring, narrow light base, wide light base
hind basitarsus lightest colour	medium dark	medium dark
hind tarsus segment 2-3 lightest colour	dark	dark
wings
middle veins lightest colour	medium dark	medium dark
basal veins lightest colour	medium light	medium light
metasoma
metasoma colour pattern	entirely dark	entirely dark
metasoma lightest colour	dark	dark
metasoma base, colour pattern	entirely dark	entirely dark
metasoma base, light spots	n.a.	n.a.
metasoma base, light band	n.a.	n.a.

Chelonus temporalis in published keys

T4: Tobias, 1986

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

TL: Tobias & Lozan 2003

Central-European species of Microchelonus Szépligeti (Hymenoptera, Braconidae) with very big apical metasomal aperture of males.

T14: Tobias, 2010

Palearctic species of Microchelonus Szépligeti (Hymenoptera: Braconidae, Cheloninae): key to species.