Streblocera (Eutanycerus) aurrayyus, Shamim & O, 2013

Shamim, Mohammad & O, Published, 2013, The genus Streblocera Westwood (Hymenoptera: Braconidae: Euphorinae) from India, with descriptions of 9 new species, Turkish Journal of Zoology 37 (4), pp. 385-405 : 388-390

4.2. Streblocera (Eutanycerus) aurrayyus sp. nov. (Plate II; Figures 11 –16)

Body length: 8.9 mm, Forewing: 7 mm, Antenna: 8 mm.

Head: Width of head in dorsal view 1.6× its length, 1.3× its height; antennal segments 21; scape long, incrassate, 8.8× its width and 1.9× height of head, at basal third with a minute spine; ventrally not carinate, flagellum geniculated at seventh flagellomere; first to seventh flagellomeres ventrally weakly carinate, seventh flagellomere formed into a hook-like prominence apicoventrally; prominence on sixth segment smaller than seventh segment; first flagellomere with 1 sensillum, 2.5× as long as wide, 1.1× as long as pedicel and 1.8× second flagellomere; second flagellomere with 2 sensilla, 1.6× its width, equal to third flagellomere; third flagellomere with 3 sensilla, F 3 – F 6, F 7, F 8 – F 18, and F 19 1.6×, 2.3×, 2×, and 2.6× their widths, respectively; length of scape: length of pedicel to seventh flagellomere: length of antenna from eighth flagellomere to apex = 115: 82: 122; occipital carina incomplete, dorsally shortly interrupted and ventrally separated from hypostomal carina; OOL: POL: OD = 20: 8: 5; length of eye in dorsal view 1.2× its width and 1.6× temple; temple smooth, sparsely setose; temple first parallel sided, posteriorly roundly narrowed behind eyes; vertex 2.3× its width, smooth, sparsely setose; frons 1.4× as wide as long, medially smooth, remaining finely striate, near eye margin sparsely setose; face 1.2× as wide as long, densely setose, punctate; intertentorial line 1.3× tentorio-ocular line, tentorial pit deep, small; clypeus 3.3× its height, flat, finely punctate, sparsely setose; length of malar space 1.2× basal width of mandible.

Mesosoma: Length of mesosoma 2× its width, 2.6× its height; pronotal side medially crenulate, remaining largely smooth; precoxal sulcus wide, crenulate; mesopleuron anterodorsally finely crenulate, setose, remaining smooth; notauli wide, deep, anteriorly crenulate, posteriorly reticulate-rugose with mid-longitudinal carina; middle lobe of mesoscutum sparsely punctate, setose, lateral lobes smooth, glabrous; scutellar sulcus wide, deep, smooth, with 1 longitudinal strong carina; scutellum convex, smooth, sparsely setose; side of scutellum reticulate, setose; medioposterior depression wide, oval-shaped; propodeum reticulate, rugose, apically smooth.

Wings: Forewing 2.8× as long as wide; length of pterostigma 2.8× its width; length of vein 1 – R 1 0.8× length of pterostigma; r emitting behind middle of pterostigma, its length 0.31× width of pterostigma; vein SR1 + 3 – SR slightly evenly curved; m – cu interstitial; r: 2 – SR: SR1 + 3 – SR= 7: 25: 70; 1 – CU1: 2 – CU1: 3 – CU1 = 5: 27: 10; hindwing 4× as long as wide; 1 – M: 1 – r-m: 2 – SC + R = 10: 15: 12.

Legs: Hind coxa sparsely punctate, setose; lengths of hind femur, tibia, and basitarsus 6.6×, 12.5×, and 10× their width, respectively; lengths of hind tibial spurs 0.2× hind basitarsus.

Metasoma: Length of metasoma 2.6× its width, 3.8× its height; first metasomal tergite 1.8× its apical width, its surface apical third smooth, remaining longitudinally striate; dorsope present; distance across spiracles 0.57× distance from spiracles to apex of first metasomal tergite; ovipositor sheath slender, setose, its length 0.15× forewing, 0.84× hind basitarsus; hypopygium sparsely setose; ovipositor long, distinctly curved downward.

Color: Yellow except stemmaticum black; temple, vertex brownish yellow; frons, F 8 – F 19, pterostigma, hind tibia, tarsus, and telotarsus yellowish brown; first metasomal tergite brown, ovipositor sheath brownish yellow; eyes grayish; maxillary palp and labial palp pale yellow; ocelli transparent; wing veins brown.

Variation: Length of body 8.5 mm; length of eye in dorsal view 1.1× its width; clypeus 3× its height, slightly convex, punctate; vein SR1 + 3 – SR evenly curved; first metasomal tergite 1.7 – 1.8× its apical width; 1 – CU1: 2 – CU1: 3 – CU1 = 4: 25: 9.

Type material: Holotype, female, INDIA: Uttar Pradesh, Aurrayya, 26°28′N, 79°31′E, 15. vii. 2008, Coll. M. Shamim & M. Sharif ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU).

Paratypes, 6 females, same as holotypes. INDIA: Uttar Pradesh, Aurrayya, 26°28′N, 79°31′E, 16. xi. 2009, Coll. M. Shamim ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU) .

Etymology: The species is named with its type locality.

Discussion: The new species Streblocera (Eutanycerus) aurrayyus sp. nov. is closely related to Streblocera (Eutanycerus) shawi sp. nov., but it differs by having (1) antennal segments 21 (antennal segments 20 in shawi ); (2) scape 8.8× its width (scape 6× its width in shawi ); (3) intertentorial line 1.3× tentorio-ocular line (intertentorial line as long as tentorio-ocular line in shawi ); (4) first metasomal tergite 1.8× its apical width, its surface apical one-third smooth, remaining longitudinally striate (first metasomal tergite 2.1× its apical width, its surface basally smooth, remaining longitudinally striate in shawi ); (5) forewing vein m – cu interstitial (forewing vein m – cu slightly antefurcal in shawi ).

The new species Streblocera (Eutanycerus) aurrayyus sp. nov. is also related to Streblocera (Eutanycerus) cornis Chen and Achterberg, 1997 . However, it differs by having (1) antennal segments 21 (antennal segments 25 in cornis ); (2) length of scape 8.8× its width (length of scape 7.1× its width in cornis ); (3) first flagellomere with 1 sensillum (first flagellomere with 7 sensilla in cornis ); (4) occipital carina incomplete, dorsally shortly interrupted (occipital carina complete in cornis ).