Chelonus sinevi
authorTobias, 2000
synonyms
body
shape♀ 3.3mm, ♂ 3.1mm [T13].
colorThe body is densely and finely sculptured [T13].
head
shapeThe head is strongly rounded-narrowed behind the eyes, 1.2 times wider than mesosoma, its width is twice the length. Temple length equal to the transverse diameter of the eye. POL is equal to 3 Od. Eyes shortly-ovate, their longitudinal diameter 1.4 times the transverse one, 3.5 times the height of the malar space, 0.8 times the width of the face. Height of face 2.2 times less than width [T13][T14].
sculptureThe face with fine rugae descending in a fan-like manner from its upper lateral corners. The vertex and the temples are finely streaked [T13].
color
antenna
shape ♀Antennae a little shorter than the head and mesosoma. 3rd segment 2.5 times as long as wide, segments in apical part of flagellum of equal length and width [T13][T14]..
shape ♂Antennae slightly shorter than the body, 24-segments [T13].
color
mesosoma
shapeMesosoma length 1.7 times its height. Propodeum without transverse carina and with weak lateral teeth [T13]. Propodeum without transverse carina and with very weak lateral teeth [T14].
sculptureMesonotum transversely rugose in anterior half [T13].
color
legs
shapeHind femur length three times its width. Hind tarsi shorter than hind tibiae, their 5th segment equal to the 3rd. Inner spur of hind tibia slightly shorter than 0.5 metatarsus [T13].
sculpture
colorLegs mostly dark-colored, hind tibiae dark brown, hind metatars ventrally yellow [T13].
wings
shape1-R1 1.3 times shorter than pterostigma. The marginal cell is twice as large as the 2nd submarginal cell. 3-SR slightly shorter than r, 3.5 times shorter than SR1, equal to 0.6 times 2-SR [T13].
colorWings in apical half slightly darkened, with brown veins, in basal half light, with slightly pigmented veins [T13].
metasoma
shape♀: Metasoma oval, the carapace is slightly bent apically, its length 1.8 times its width. ♂: Metasoma is twice as long as wide, narrower than the mesosoma (28:33); the same width as the mesonotum [T13].
sculptureMetasoma in basal third with several weak longitudinal rugae [T13].
color
♀ ovipositor
♂ apertureThe aperture is located in the middle of the hind surface of metasoma, and occupies 0.25 of its width, its height is slightly less than its width [T13]. Apical aperture almost round (its height is slightly less than width), located in the middle of metasomal apex, occupies 0.25 of its width [T14].
other info
distributionDK, N [P8]. DK [FE].
remarks
hostsBatrachedra albicapiiella Sinev (Batrachedridae) [T13].
type description
177(176). Пер. край рад. яч. в 1.3 раза короче птеростигмы. Дл. гр. в 1.7 раза больше ее высоты. - Голова за глазами сильно округленно-суженная, в 1.2 раза шире срсп., ее ширина вдвое больше дл. Виски по дл. равны поперечному диаметру глаза. POL равно 3 Od. Глаза коротко-яйцевидные, их продольный диаметр в 1.4 больше поперечного, в 3.5 раза больше высоты щеки, равен 0.8 ширины лица. Высота лица в 2.2 раза меньше его ширины. Ус. немного короче головы и гр.; дл. 1-го чл. жгутика в 2.5 раза больше его ширины, чл. в вершинной части жгутика равной дл. и ширины. Проподеум без поперечного валика и со слабыми боковыми зубцами. Рад. яч. вдвое больше 2-й радиомед. яч. 2-й отрезок рад. жилки немного короче 1-го, в 3.5 раза короче 3-го, равен 0.6 1-й радиомед. жилки. Дл. задн. бедра втрое больше его ширины.
Задн. лапки короче задн. голеней, их 5-й чл. равен 3-му. Внутренняя шпора задн. голени чуть короче 0.5 1-го чл. задн. лапки. Бр. овальное, панцирь апикально немного подогнут, его дл. в 1.8 раза больше ширины. Тело густо и мелко скульптированное. Лицо в тонких складках, веерообразно спускающихся от его верхнебоковых углов. Темя за глазками и виски тонко исчерченные. Срсп. в пер. 1/2 поперечно-морщинистая. Бр. в баз. 1/3 с несколькими слабыми продольными складками. Ноги б. ч. темноокрашенные, задн. голени темно-коричневые, 1-й чл. задн. лапок вентрально желтый. Крл. в вершинной 1/2 слабозатемненные, с коричневыми жилками, в баз. 1/2 светлые, со слабопигментированными жилками. 3.3. Паразит Batrachedra albicapiiella Sinev (Batrachedridae). — Прим, (♂ - теза 276) . M. (М.) sinevi Tobias, sp. n.
Голотип - 9, окр. Уссурийска, Горнотаежная станция, из гус. В. albicapitella, 7.VI! 1983 (Синев) [ЗИН]. П а р а т и п. Прим.: 1♂, с данными голотипа, 4.VI1 1993. Вид назван именем С. Ю. Синева.
276(275). Бр. уже гр. (28:33; такой же ширины, как срсп.). ВАО расположено посредине задн. поверхности бр., занимает 0.25 его ширйны, его высота немного меньше ширины. - Ус. немного короче тела, 24-чл. Дл. бр. вдвое больше его ширины. В остальном похож на ♀ - см. тезу 177. 3.1 ..... М. (М.) sinevi Tobias, sp. n.
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 - 3.4 (3.6) | (2.8) 2.8 - 3.4 (3.6) |
number of antennal segments: | 16 | (23) 23 (25) |
head, dorsal view |
Head width : length | narrow, wide | narrow, wide |
Temples narrowing - widening | strongly narrowing, narrowing | strongly narrowing, narrowing |
Eye length : temple length | --- | --- |
Roundness temple | strong, medium, weak | strong, medium, weak |
POL : OD | 2 - 3, 3 - 4 | 2 - 3, 3 - 4 |
Ocellar triangle shape | --- | --- |
Excavation of head | --- | --- |
head, lateral view |
Head height : length | --- | --- |
Eye height : length | --- | --- |
Temple length : eye length | --- | --- |
head, frontal view |
Head width : height | --- | --- |
Face width : height | wide, very wide | wide, very wide |
Eyes converging ventrally | --- | --- |
EH : MSL | very long | very long |
Clypeus width : height | --- | --- |
Clypeus extending above bottom of eyes | --- | --- |
Tentorial pits | --- | --- |
Shape of lower margin clypeus | --- | --- |
antennae |
Antennal shape | --- | filiform, not widened |
Segment 3 length : width | short, medium | --- |
Penultimate segment length : width | short | --- |
Length of antenna : length of body | 1: very short, 2: short | 3: long, 4: very long |
mesosoma, lateral view |
Length : height | long | long |
transverse carina | absent | absent |
lateral teeth | very small, very weak, weak, small, short | very small, very weak, weak, small, short |
mesosoma, ventral view |
Prepectal carina lamelliform | indistinct | indistinct |
legs |
Hind femur length : width ratio | short | short |
Hind tibia length : hind tarsus length ratio | long | long |
Hind tibia (longest) spur length : metatars length ratio | short | short |
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) | | |
S-shape vein SR1 | --- | not S-shaped |
cell M : cell Sm2 | Sm2 medium | Sm2 medium |
Pterostigma length : width ratio | --- | --- |
Angle between radial vein (r) : vein 1-R1 | --- | --- |
metasoma, dorsal view |
Length : width ratio of metasoma | short, medium | medium, long |
Shape of metasoma | --- | --- |
metasoma, lateral view |
Length : height ratio of metasoma | --- | --- |
posterior : anterior height ratio of metasoma | --- | --- |
Position of maximum height | --- | --- |
metasoma, ventral view |
Metasoma posteriorly curved forwards | just/slightly incurved | just/slightly incurved |
male apical aperture |
Aperture width : metasoma width | no aperture | small |
Aperture shape | n. a. | (nearly) round |
Median process shape | n. a. | --- |
sculpture |
head |
general coarseness | fine | fine |
clypeus |
coarseness punctation | --- | --- |
density punctation | --- | --- |
face |
sculpture type | rugose | rugose |
sculpture direction | diagonal/concentric | diagonal/concentric |
vertex and temple |
sculpture type | striate (striolate) | striate (striolate) |
mesonotum |
sculpture type | --- | --- |
scutellum |
middle | --- | --- |
lateral | --- | --- |
metasoma |
base - mid sculpture | longitudinally rugose / rugose-striate | longitudinally rugose / rugose-striate |
sculpture at apex | rugulose | rugulose |
coarse / fine boundary | base (to 50%) | base (to 50%) |
color |
head |
mandibles color pattern | --- | --- |
palpi, lightest color | --- | --- |
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 | dark | dark |
fore femur color pattern | entirely dark | entirely dark |
hind femur lightest colour | dark | dark |
hind femur color pattern | entirely dark | entirely dark |
hind tibia lightest colour | dark | dark |
hind tibia color pattern | entirely dark | entirely dark |
hind basitarsus lightest colour | dark | dark |
hind tarsus segment 2-3 lightest colour | dark | dark |
wings |
middle veins lightest colour | medium dark | medium dark |
basal veins lightest colour | light | 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 sinevi in published keys
T14: Tobias, 2010
Palearctic species of Microchelonus Szépligeti (Hymenoptera: Braconidae, Cheloninae): key to species.