Heteromeringia flavipes (WIILLISTON, 1896)

Lonsdale, Owen & Marshall, Stephen A., 2007, Revision of the New World Heteromeringia (Diptera: Clusiidae: Clusiodinae), Beiträge Zur Entomologie = Contributions to Entomology 57 (1), pp. 37-80 : 57-58

Heteromeringia flavipes (WIILLISTON, 1896)

( Figs 39-41 , Map 5 )

Heteromeringia flavipes, MELANDER & ARGO, 1924: 29-30 .

Clusiodes flavipes, MALLOCH, 1918: 6 .

Heteroneura flavipesflavipes WWILLISTILLISTON, 1896: 387 ; 1908: 319. CZERNY, 1903: 101.

Description

Male

Body length 2.8 mm. Bristles brown. Two dorsocentral bristles. Ocellar bristle relatively long and well-developed. Anterior genal bristle vibrissa-like. Arista short-plumose. Anepisternum with additional upcurved bristle in posterodorsal corner. Thorax dark brown; Guanacaste male with faint yellowish arch in front of (and following) transverse suture. Coxae and legs light yellow with mid tibia sometimes brown; legs entirely yellow in types (one type severely damaged with mid legs missing). Frons dark brown with anterior half (or less) orange (yellow with posterior half brownish-orange in Guanacaste male); antenna (excluding arista) yellow with distal 1/3 of first flagellomere brown; face, gena, parafacial and mouthparts white; remainder of head yellow; face pilose; upper 3/5 of gena silvery tomentose. Abdomen dark brown with cerci yellow and surstylus somewhat lighter medially and distally. Wing clouded around distal 1/4 of vein R 2 2+3 and lightly clouded in base of first radial cell; male from Guanacaste and type specimens with distal 1/3-1/2 clouded, and with infuscation anterior to base of R

2. M ratio 5.7.

2+3 1+2

Male terminalia ( Figs 39-41 )

As described for H. czernyiczernyi except as follows: surstylus and epandrium smaller and more rounded; hypandrium + pregonite large, dorsally lobate, and without anterior bristle; distiphallus with both ribs shortened and terminating in long, thick accessory sclerites.

Female

None examined.

Distribution

Costa Rica, Nicaragua, St. Vincent, United States (FL) ( Map 5 ).

Lectotype: ST. VINCENT. W.I., Leeward side, H.H. Smith (1 , BMNH).

Paralectotypes: ST. VINCENT. same collection as lectotype (2 , BMNH) .

Additional material examined: COSTA RICA. Guanacaste: Guanacaste N.P., Biol. Stn. Cacao, 13.ii.1995, screen sweeps, L. Masner (1 , INBC) , Puntarenas: San Vito de Coto Brus , Est. Biol. Las Alturas, 1500m, forest border, v.1992, P. Hanson (1 , DEBU) . ST. VINCENT. W.I., Mangaroo , 28.iii.1989, A. Freidberg (1 , DEBU) .

Comments

Two of the original five male cotypes WILLISTON WI designated for Heteromeringia flavipesflavipes (as Heteroneura ) ( WILLISTON, 1896) have been identified as pale phase males of Craspedochaeta concinna (WILLISTON (WI, 1896). Of the remaining three male cotypes, one is here designated as the lectotype of H. flavipes . The single female cotype was not examined.

Figures

Map 5: Distributions of species in the Heteromeringia czernyi species group excluding H. czernyi KERTESZ. Legend: H. flavipes ((WILLIST WILLISTON), circle; H. flavifrons HENNIG, dot.

Figs 39-41: Heteromeringia flavipes ((WIL WILLISTON), genitalia. 39 external, left lateral; 40 right surstylus, dorsal; 41 internal genitalia, left lateral. Ejaculatory apodeme omitted.