Streblocera ( Eutanycerus ) hayati, Shamim & O, 2013

4.4. Streblocera ( Eutanycerus) hayati sp. nov. (Plate IV; Figures 25 –34)

Body length: 7.7 mm, Forewing: 6.2 mm, Antenna: 6.9 mm.

Head: Width of head in dorsal view 2× its length, 2.2× its height; antennal segments 19; scape long, incrassate, 8.3× its width and 2.8× height of head, at basal without horn; flagellum geniculated at seventh flagellomere; first to seventh flagellomere ventrally without carinate, seventh flagellar flagellomere formed into a small hook-like prominence apicoventrally; prominence on sixth segment smaller than that on seventh segment; first flagellomere without sensillum, 3× as long as wide, 1.2× as long as pedicel and 2× second flagellomere; second flagellomere with 1 sensillum, 1.5× its width, almost equal to third flagellomere; third flagellomere with 2 sensilla; F 4 – F 5, F 6 – F 7, F 8, F 17, F 9, F 11, F 12 – F 16, and F 17 2×, 1.3×, 1.6×, 2.5×, 1.6×, 2×, 1.6×, and 3× their widths, respectively; length of scape: length of pedicel to seventh flagellomere: length of antenna from eighth flagellomere to apex = 100: 67: 112; occipital carina incomplete, dorsally shortly interrupted; ventrally separated from hypostomal carina; OOL: POL: OD = 18: 10: 5; length of eye in dorsal view 1.2× its width and 1.5× temple; temple roundly narrowed behind eyes, temple and vertex smooth, setose; vertex 3× as wide as long, smooth, sparsely setose; frons 1.9× as wide as long, smooth; face 1.2× as wide as long, densely setose, due to insertion of setae somewhat punctate; intertentorial line 2× tentorio-ocular line, tentorial pit deep, large; clypeus almost 3× (35: 12) height, smooth, flat, finely punctate; length of malar space 1.6× basal width of mandible.

Mesosoma: Length of mesosoma 1.9× its width, 2.5× its height; pronotal side anteriorly and posteriorly crenulate, remaining smooth; precoxal sulcus wide, crenulate; mesopleuron anteriorly somewhat finely crenulate, remaining smooth, notauli deep, anteriorly crenulate, posteriorly widely rugose; middle lobe of mesoscutum setose, lateral lobes smooth; scutellar sulcus deep smooth, setose with 1 longitudinal strong carina; scutellum smooth, slightly convex; side of scutellum reticulate, rugose, setose; medioposterior depression small, somewhat oval-shaped; propodeum basally reticulate, rugose, apically rugose with short median carina.

Wings: Forewing 2.7× as long as wide; length of pterostigma 3.8× its width; length vein 1 – R 1 0.86× length of pterostigma; r emitting just middle of pterostigma, its length 0.4× width of pterostigma; vein SR1 + 3 – SR slightly curved; m – cu slightly antefurcal; r: 2 – SR: SR1 + 3 – SR = 5: 14: 55; 1 – CU1: 2 – CU1: 3 – CU1 = 3: 13: 7; hindwing 4.3× as long as wide; 1–M: 1 – r-m: 2 – SC + R = 5: 10: 8.

Legs: Hind coxa smooth, sparsely setose, 1.3× as long as wide; lengths of hind femur, tibia, and basitarsus 7.2×, 10×, and 8× their widths, respectively; lengths of hind tibial spurs 0.09× and 0.12× hind basitarsus.

Metasoma: Length of metasoma 2.9× its width and 3.3× its height; first metasomal tergite 2× its apical width, its surface uniformly longitudinally striate; dorsope present; distance across spiracles 0.42× distance from spiracles to apex of first metasomal tergite; ovipositor sheath slender, its length 0.17× forewing, 1.2× hind basitarsus, hypopygium setose; ovipositor long, distinctly curved upward subapically with a small dorsal notch.

Color: Yellow except stemmaticum black; first metasomal tergite, ovipositor sheath brown; propodeum, tarsus, basitarsus, telotarsus, temple yellowish brown; eyes grayish; maxillary palp and labial palp pale yellow; ocelli transparent; wing veins brown.

Variation: Length of body 7.9 mm, of forewing 6.5 mm, of antenna 7.5 mm; scape 8× its width; OOL: POL: OD = 19: 9: 6; clypeus 2.8 – 2.9× its height, scutellum sparsely punctate; length of vein 1– R 1 0.84 – 85× length of pterostigma; lengths of hind tibial spurs 0.08× and 0.11× hind basitarsus.

Type material: Holotype, female, INDIA: Uttar Pradesh, Etawah, 26°47′N, 79°02′E, 14, 15. vii. 2008, Coll. M. Sharif & M. Shamim ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU). GoogleMaps

Paratypes, 4 females, same as holotypes. INDIA: Uttar Pradesh, Etawah, 26°47′N, 79°02′E, 14, 22. v. 2006. Coll. M. Sharif & M. Shamim ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU) GoogleMaps .

Etymology: The new species is named after Dr M Hayat, in recognition of his contributions to the taxonomy of parasitic Hymenoptera .

Discussion: The new species Streblocera ( Eutanycerus) hayati sp. nov. is closely related to Streblocera ( Eutanycerus) achterbergi sp. nov., but it differs by having (1) antennal segments 19 (antennal segments 20 in achterbergi ); (2) scape at basal without horn (scape at basal quarter with a minute spine in achterbergi ); (3) second flagellomere with 1 sensillum, 1.5× its width (second flagellomere without sensillum, 1.7× its width in achterbergi ); (4) intertentorial line 2× tentorio-ocular line (intertentorial line 1.5× tentorio-ocular line in achterbergi ); (5) length of forewing vein r 0.41× width of pterostigma (length of forewing vein r 0.27× width of pterostigma in achterbergi ); (6) first metasomal tergite 2× its apical width, its surface uniformly longitudinally striate (first metasomal tergite 2.4× its apical width, its surface apically and basally smooth, remaining longitudinally striate in achterbergi ).

The new species Streblocera ( Eutanycerus) hayati sp. nov. is also related to Streblocera ( Eutanycerus) octaba Chou, 1990 . However, it differs in having (1) occipital carina dorsally shortly interrupted (occipital carina dorsally widely interrupted in octaba ); (2) propodeum basally reticulate, rugose, apically rugose with short median carina (propodeum slightly smooth anteriorly and remainder rugose in octaba ); (3) flagellum geniculated at seventh flagellomere (flagellum geniculated at eighth flagellomere in octaba ).