Streblocera ( Eutanycerus ) levipleuron, Shamim & O, 2013

4.6. Streblocera ( Eutanycerus) levipleuron sp. nov. (Plate VI; Figures 45 View Figure 45 –54)

Body length: 10.7 mm, Forewing: 6.7 mm, Antenna: 8.1 mm

Head: Width of head in dorsal view 1.5× its length and its height; antennal segments 21; scape long, incrassate, 8.8× its width and 2.1× height of head, at basal more than third with a minute spine, ventrally weakly carinate, flagellum geniculated at seventh flagellomere; first to seventh segments ventrally weakly carinate, sixth and seventh flagellomere formed into a hook-like prominence apicoventrally, prominence on sixth segments smaller than on seventh segment; first flagellomere with 1 sensillum, 1.8× as long as wide, 0.73× as long as pedicel and 1.7× as long as second flagellomere; second flagellomere with 2 sensilla, 1.3× as long as wide, as long as third flagellomere; third flagellar segments with 3 sensilla, F 3 – F 4, F 5 – F 6, F 7, F 8 – F 9, F 10 – F 13, F 14 – F 18, and F 19 1.3×, 1.6×, 1.5×, 2.4×, 1.6×, 1.5×, and 2.8× their widths, respectively; length of scape: length of pedicel to seventh flagellomere: length of antenna from eighth flagellomere to apex = 115: 85: 125; occipital carina incomplete, dorsally shortly interrupted, ventrally separated from hypostomal carina; OOL: POL: OD = 22: 8: 5; length of eye in dorsal view 1.1× its width and 1.2× temple; temple smooth, setose; temple roundly narrowed behind eyes; vertex 2.1× its width, smooth, sparsely setose; frons 2.1× as wide as long, medially smooth, remaining striate, near eye margin sparsely setose; face 2× as wide as long, somewhat rugo-punctate, densely setose; intertentorial line 1.2× tentorio-ocular line, tentorial pit deep, large, somewhat oval-shaped; clypeus 2.3× its height, flat, smooth, densely setose; length of malar space 1.4× basal width of mandible.

Mesosoma: Length of mesosoma 2.8× its width, 3.3× its height; pronotal side medially crenulate, remaining largely smooth; precoxal sulcus narrow, reticulate, setose; mesopleuron largely smooth; notauli wide, deep, anteriorly crenulate, posteriorly reticulate, with median longitudinal carina; middle lobe of mesoscutum smooth, setose, lateral lobes smooth; scutellar sulcus wide, deep, smooth, with 1 strong median longitudinal carina; scutellum almost flat, smooth, sparsely setose; side of scutellum reticulate, setose; medioposterior depression wide, oval-shaped; propodeum apically smooth, remaining reticulate, rugose.

Wings: Forewing 2.3× as long as wide; length of pterostigma 3× its width; length of vein 1 – R 1 0.71× length of pterostigma; r emitting at middle of pterostigma, its length 0.36× width of pterostigma; vein SR1 + 3-SR curved; m – cu interstitial; r: 2 – SR: SR1 + 3 – SR = 8: 25: 70; 1 – CU1: 2 – CU1: 3 – CU1 = 3: 25: 10; hindwing 4.2× as long as wide; 1 – M: 1 – r-m: 2 – SC + R = 8: 15: 15.

Legs: Hind coxa smooth, setose; lengths of hind femur, tibia, and basitarsus 6.5×, 13.3×, and 11.7× their widths, respectively; lengths of hind tibial spurs 0.17× hind basitarsus.

Metasoma: Length of metasoma 2.7× its width and 3.8× its height; first metasomal tergite 2× its apical width, its surface basally more than half smooth, remaining longitudinally striate; dorsope present; distance across spiracles 0.48× distance from spiracles to apex of first metasomal tergite; ovipositor sheath slender, setose, its length 0.16× forewing and 0.9× hind basitarsus, hypopygium sparsely setose; ovipositor long, strongly curved downward, apically pointed.

Color: Yellowish brown except stemmaticum, ovipositor, propodeum, brownish yellow; first metasomal tergite, ovipositor sheath brown; maxillary palps, labial palps, metasoma except first metasomal tergite, legs yellow; eyes grayish; ocelli transparent.

Variation: Length of body 10.5 – 10.8 mm, of forewing 6.4 – 6.8 mm, of antenna 8 – 8.4 mm; scape 8.5 – 8.8× its width; first flagellomere 1.7 – 1.8× its width; third flagellomere 1.3 – 1.4× its width; clypeus 2.1 – 2.2× its height; r: 2 – SR: SR1 + 3 – SR = 9: 24: 68; ovipositor sheath 0.89 – 92× hind basitarsus.

Type material: Holotype, female, INDIA: Madhya Pradesh, Bhind, 26°36′N, 78°46′E, 15. vi. 2007, Coll. M. Sharif & M. Shamim ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU). GoogleMaps

Paratypes, 4 females, same as holotypes. INDIA: Madhya Pradesh, Gwalior, 26°14′N, 78°10′E, 22. v. 2010. Coll. M. Shamim ( ZDAMU). Deposited in Insect Collection, Department of Zoology , AMU, Aligarh ( ZDAMU) GoogleMaps .

Etymology: The species is named for its smooth mesopleuron.

Discussion: The new species Streblocera ( Eutanycerus) levipleuron sp. nov. resembles Streblocera ( Eutanycerus) aurrayyus sp. nov. However, it differs by having (1) middle lobe of mesoscutum smooth, setose (middle lobe of mesoscutum sparsely punctate in aurrayyus ); (2) mesopleuron largely smooth (mesopleuron anterodorsally finely crenulate, setose, remaining largely smooth in aurrayyus ); (3) hind tibial spurs 0.17× hind basitarsus (hind tibial spurs 0.20× hind basitarsus in aurrayyus ); (4) hind coxa smooth (hind coxa sparsely punctate in aurrayyus ).

The new species Streblocera ( Eutanycerus) levipleuron sp. nov. also resembles Streblocera ( Eutanycerus) obtusa Chen and Achterberg, 1997 . However, it differs by having (1) antennal segments 21 (antennal segments 22 in obtusa ); (2) length of scape 8.8× its width (length of scape 5× its width in obtusa ); (3) propodeum apically smooth, remaining reticulate, rugose (propodeum areolate with rugae between carinae in obtusa ); (4) surface of first metasomal tergite basally more than half smooth, remaining longitudinally striate (surface of first metasomal tergite weakly longitudinally rugose in obtusa ).