Enicospilus tangi Shimizu sp. nov. Figs 2B, H, 25

Etymology.

The specific name is dedicated to Dr Yuqing Tang who described E. longitarsis, which is morphologically the most similar species to the one that is hereby described, and has contributed to the taxonomy of Ophioninae in Asia, represented by the monograph of Chinese Enicospilus (Tang 1990).

Material examined.

1♂: Nepal .

Type series: holotype ♂, Kakani (2,070 m), Nepal, 1-23.VIII.1983, M.G. Allen leg. (NHMUK) (Figs 2B, H, 25) .

Distribution.

Nepal.

Description.

Male (Holotype) (Figs 2B, H, 25). Body length ca 24.5 mm.

Head with GOI = 2.5 (Fig. 25C). Lower face 0.9 × as wide as high, moderately punctate with setae and shiny (Fig. 25B). Clypeus 1.7 × as wide as high, moderately punctate with setae, moderately convex in profile, lower margin impressed (Fig. 25B, C). Malar space 0.4 × as long as basal mandibular width (Fig. 25B, C). Mandible weakly twisted by ca 25°, very long, proximally strongly narrowed, centrally to apically subparallel sided, its outer surface with a diagonal setose deep groove between dorsoproximal corner to base of mandibular apical teeth (Figs 2B, 25B, C). Upper mandibular tooth 2.1 × as long as lower one, stouter than lower one (Figs 2B, 25B). Frons, vertex and gena moderately shiny with fine setae (Fig. 25B-D). Posterior ocellus close to eye, separated from eye by less than 0.1 × its own maximum diameter (Fig. 25B-D). Ventral end of occipital carina joining oral carina. Antenna incomplete apically, right antenna with 64 flagellomeres and left antenna with 65 flagellomeres; first flagellomere 1.9 × as long as second; 20th flagellomere 2.2 × as long as wide.

Mesosoma entirely moderately shiny with setae (Fig. 25E). Pronotum punctate dorsally and punctostrigose centrally to ventrally (Fig. 25E). Mesoscutum 1.5 × as long as its maximum width, densely and finely punctate with setae, rather weakly shiny, and evenly rounded in profile (Fig. 25E). Notauli absent (Fig. 25E). Scutellum moderately convex, moderately punctate with setae, with lateral longitudinal carinae almost reaching posterior end (Figs 2H, 25E). Epicnemium densely punctate with setae. Epicnemial carina present, evenly weakly curved to anterior, its dorsal end not reaching anterior margin of mesopleuron (Fig. 25E). Mesopleuron entirely weakly to moderately punctostriate to reticulate-strigose longitudinally (Fig. 25E). Submetapleural carina almost parallel sided centrally and weakly broadened anteriorly (Fig. 25E). Metapleuron densely punctostriate with setae (Fig. 25E). Propodeum almost evenly rounded in profile; anterior transverse carina complete centrally, its lateral end almost joining pleural carina; pleural carina vestigial; anterior area longitudinally striate; spiracular area strongly shiny and finely punctures with setae; posterior area rather moderately rugose; propodeal spiracle elliptical, its outer margin not joining pleural carina by a ridge (Fig. 25E).

Wings. Fore wing length ca 15.5 mm with AI = 0.4, CI = 0.4, DI = 0.3, ICI = 0.5, SDI = 1.3, SI = 0.1, SRI = 0.3; vein 1m-cu&M almost evenly curved; vein 2r&RS almost straight and RS evenly curved; fenestra and sclerites of discosubmarginal cell as in Figure 25F; proximal sclerite triangular, confluent with distal sclerite, moderately pigmented; central sclerite absent; distal sclerite weakly pigmented; proximal corner of marginal cell uniformly setose; posterodistal corner of second discal cell ca 95°; posterodistal corner of subbasal cell ca 90°; vein 1cu-a antefurcal to M&RS by 0.3 × 1cu-a length (Fig. 25F). Hind wing with NI = 1.8, RI = 1.5; vein RS straight; vein RA with 6 uniform hamuli.

Legs. Ventral 0.7 of outer surface of fore tibia with rather dense spines. Hind leg with coxa in profile 1.8 × as long as deep; basitarsus 2.0 × as long as second tarsomere; fourth tarsomere 0.7 × as long as third tarsomere and 5.0 × as long as wide; tarsal claw simply pectinate.

Metasoma with PI = 2.8, DMI = 1.3, THI = 2.1; dorsal margin of tergite 1 slightly sinuous; thyridium elongate (Fig. 25A).

Colour (Fig. 25). Entirely testaceous except for apex of mandible black. Wings hyaline; proximal sclerite testaceous, distal sclerite very weakly pigmented; veins brown.

Variation. Unknown.

Female. Unknown.

Differential diagnosis.

Enicospilus tangi sp. nov. can be confused with E. kakanicus sp. nov., E. longitarsis, and E. yonezawanus, all of which belong to the E. ramidulus complex. Among these species, E. tangi sp. nov. is most closely related to E. longitarsis, and these species are distinguished from the other Oriental species of Enicospilus by the triangular proximal sclerite (e.g. Fig. 25F), the absence of the central sclerite (e.g. Fig. 25F), moderately large value of SDI (over 1.3) (e.g. Fig. 25F), a diagonal setose deep groove of the mandibular outer surface (e.g. Fig. 2B), moderately large fore wing fenestra (e.g. Fig. 25F), rather dense spines on the outer surface of the fore tibia, etc. Enicospilus tangi sp. nov. is distinguished from E. longitarsis by the following character states: scutellum narrowed posteriorly (Fig. 2H) (subquadrate in E. longitarsis); fore wing vein 1m-cu&M evenly curved (Fig. 25F) (slightly sinuous in E. longitarsis); lower face 0.9 × as wide as high (Fig. 25B) (0.8 in E. longitarsis); GOI = 2.5 (Fig. 25C) (1.8 in E. longitarsis).