Pelmatops ichneumoneus (Westwood)

Chen, Xiaolin, Zhang, Yanzhou, Li, Jie & Zhu, Chaodong, 2010, A review of stalk-eyed fruit flies (Diptera: Tephritidae: Trypetinae), Zootaxa 2654 (1), pp. 1-16 : 4-5

publication ID	https://doi.org/ 10.11646/zootaxa.2654.1.1
persistent identifier	https://treatment.plazi.org/id/F9438782-FFF2-FFC9-FF44-F95D30F3E5EC
treatment provided by	Felipe
scientific name	Pelmatops ichneumoneus (Westwood)
status

Treatment

Pelmatops ichneumoneus (Westwood) View in CoL

( Figs. 2, 3 View FIGURES 1–9 , 11, 12 View FIGURES 10–17 , 19, 20 View FIGURES 18–25 , 27 View FIGURES 26–33 , 35, 37, 40 View FIGURES 34–42 , 45, 49 View FIGURES )

Achias ichneumoneus Westwood, 1850: 235 . Type-locality: India Orientalis. Syntypes (male & female) in BMNH. Pelmatops ichneumoneus: Enderlein, 1912: 355 View in CoL ; Hendel, 1927: 33. — Zia, 1937: 113. — Zia & Chen, 1954: 306. —

Hardy, 1977: 76. — Kapoor, 1993: 90 — Wang, 1996: 111.

Diagnosis. This species strongly resembles P. fukienensis in general appearance, but differs by lacking the lateral vertical and postpronotal setae; having an anteroventral brown band on the eye stalk and brown crossbands on the face; also by the thorax entirely yellowish-brown; wing predominantly hyaline; and pterostigma relatively long, about equal in length to cell c ( Fig. 27 View FIGURES 26–33 ).

Description. Body length 14.0–16.0 mm; wing length 113.0– 14.5 mm. The body usually predominantly orange-yellow and sub-shining ( Figs. 2, 3 View FIGURES 1–9 ).

Head ( Figs. 11, 12 View FIGURES 10–17 , 19, 20 View FIGURES 18–25 ): Orange-yellow except frons and ocellar triangle yellow-brown to dark brown, with 2 brown bands: 1 extending across anterior edge of frons and anterodorsal portion of eye stalk; 1 on posterior side of eye stalk (two bands separated in female, but connected in male at anterior 3/4 of eye stalk). The ratio between eye stalk length to thorax length 1.23–1.61 in female, 2.00– 2.26 in male. Palpus spatulate, sparsely covered with fine, yellow setulae. Chaetotaxy reduced: head with medial vertical and postocellar setae present; lateral vertical, ocellar, orbital, frontal and genal setae absent. Antenna distinctly shorter than face, 1 st flagellomere rounded dorsoapically, about twice as long as wide; arista plumose, longest ray slightly shorter than width of 1st flagellomere.

Thorax almost orange-yellow except apical part of halter brown to dark brown, 2 notopleural, 1 anepisternal, 1 postsutural supra-alar, 1 postalar, 1 intra-alar and 1 apical scutellar setae.

Wing ( Fig. 27 View FIGURES 26–33 ). Predominantly hyaline, tinged with ill-defined pale yellowish-brown markings; pterostigma yellow-brown, narrow and long, about 1.00–1.03 times as long as cell c. Vein R 4+5 setose from base to beyond crossvein R-M.

Legs entirely orange-yellow, slender and long, mid tibia with black apical spine.

Abdomen predominantly orange-yellow, elongate, syntergite 1+2 longer than tergites 3 and 4 combined.

Female terminalia: Oviscape orange-yellow, tapering and somewhat cylindrical; width to length ratio 0.52; oviscape length to tergites 4–6 ratio 0.58. Aculeus more or less rectangular in shape, 2.43 times as long as wide, 0.52 times as long as oviscape, apically tapered to relatively sharp tip and with 4 large, broad serrations on each side ( Fig. 35 View FIGURES 34–42 ). Eversible membrane with 2 pairs taenia; taenia slightly shorter than denticles part; denticles much larger on basal half of membrane than on distal half, larger basal ones nearly divided into 2 columns, smaller denticles on distal half not divided; similar dorsally and ventrally ( Fig. 49 View FIGURES ).

Male terminalia: Epandrium large and broad, nearly oval in posterior view ( Fig. 37 View FIGURES 34–42 ); lateral surstylus small and short, apex rounded in lateral view ( Figs. 40 View FIGURES 34–42 ); medial surstylus with 1 black prensiseta. Glans very stout, without distinct acrophallus, but with slender and membranous subapical lobe ( Fig. 45 View FIGURES ).

Distribution. China (Sichuan, Yunnan, Xizang, Hainan), India, Nepal. Hainan is a new province record for this species.

Type data. India Orientalis. Syntypes (male & female) in BMNH (not examined).

Other specimens examined. CHINA: Hainan: Jianfengling , 1400 m, D. Zhang, 6 May 2007, 1♀ ( IZCAS) . Sichuan: Wan Xian , 1200 m, 15 August 1993, X. L. Chen, 1♀ ( IZCAS) ; near Cheng tu, D.C. Graham, 1♀ ( USNM) . Yunnan: Xishuangbanna , 650 m, 15 May 1958, S. P. Hong, 1♁ ( IZCAS) . Xizang: Medog , 900–1200 m, 11 April 1982, Y. H. Han, 1♀ ( IZCAS) . Yunnan: Honghepingbian, Dawei Mountain 1330 m, 24 May 2009, X. S. Yang, 1♀ ( BAU) . INDIA: Ranikhet , June 1949, I. M.Newell, 1♁ ( BPBM) ; Ranikhet , June 1950, F. A. Bianchi, 1♁ ( BPBM) ; near Chaubattia , 22 June 1949, F. A. Bianchi, 1♀ ( BPBM) .