Delta pyriforme pyriforme ( Fabricius, 1775 )

Sheikh, Altaf Hussain, Kumar, P. Girish, Thomas, Moni & Bhandari, Rita, 2017, Taxonomic studies on Vespid Wasps (Hymenoptera: Vespoidea: Vespidae) of Dumna Nature Park, Jabalpur, Madhya Pradesh, Records of the Zoological Survey of India 117 (3), pp. 198-198 : 198-

17. Delta pyriforme pyriforme ( Fabricius, 1775)

1775. Vespa pyriformis Fabricius , 371. Type: China (?).

1991. Delta pyriforme pyriforme ; Krombein, 8.

Diagnosis: Female: Clypeus smooth, strongly convex, flattened in middle, its anterior margin concave at apex, frons closely and strongly punctured; upper part of propodeum strongly punctured except at dorsolateral angle smooth; fore wing with prestigma 1.11x pterostigma; gaster almost smooth with minute scattered punctures; T2 without lamellae separated by apical thickening.

Colour Description: Head yellow, broad transverse black band between eyes on the vertex through ocellar area; occiput mostly black; antenna reddish brown; pronotum entirely and mesoscutum anteriorly yellow, later posteriorly black or brown or reddish brown; tegula reddish brown; parategula reddish brown; scutellum and postscutellum usually reddish brown with highly variable black markings; propleuron black; mesopleuron, metapleuron, propodeum and legs reddish brown with highly variegated black markings; sutures between scutellum, postscutellum and propodeum black; petiole and basal third of second gastral segment reddish brown, former black at base and with subapical black band, the middle of later black, its posterior third and the visible part of the remaining abdominal segments yellow. Wings deep flavohyaline with narrow infumation on apical margin of forewing.

Size (H+M+T1+T2): 25-27 mm.

Male: Last antennal article hooked apically, hook long, curved and pointed, terminal half distinctly swollen in profile and widened seen from above, in curved position it almost reaching to apex of ninth antennal segment; S3-S6 with few large hairs apically; S7 with deep median longitudinal groove; apical tip of aedeagus bulb-like; parameral spine elongate with moderately large hairs subapically; volsella with moderately large thick hairs. Male comparatively smaller and slighter than female. Other characters almost same as that of female.

Size (H+M+T1+T2): 18-23 mm.

Material examined: INDIA: Madhya Pradesh, Jabalpur district, Dumna Nature Park , 5♀ & 3♂, 10.xi.2015, Coll. Altaf Hussain Sheikh.

Distribution: India: Andaman & Nicobar Islands, Andhra Pradesh, Arunachal Pradesh, Assam, Chhattisgarh, Delhi, Gujarat, Himachal Pradesh, Jharkhand, Karnataka, Kerala, Madhya Pradesh (new record), Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Pondicherry, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttarakhand, Uttar Pradesh, West Bengal. Elsewhere: Bhutan, Cambodia, China, Hawaii, Hong Kong, Indonesia, Malaysia, Moluccas, Myanmar, Nepal, New Guinea, Pakistan, Sri Lanka, Taiwan, Thailand, Vietnam.