Chonocephalus americanus Borgmeier

Disney, R. Henry L., 2002, Revisionary notes on Chonocephalus Wandolleck (Diptera: Phoridae) with keys to species of the Holarctic Region, Zootaxa 60, pp. 1-36 : 9

Chonocephalus americanus Borgmeier

( Figs 5­8 , 35 )

Chonocephalus americanus Borgmeier, 1963: 250 .

Chonocephalus digitalis Borgmeier, 1967: 207 (part). Syn. nov.

I have slide mounted the holotype female and allotype male, which were caught in copula. I have examined a further 8 paratype males of this species. The holotype of C. digitalis has proved to be conspecific with C. americanus . I therefore formally propose the synonymy of C. digitalis with C. americanus . Four paratypes of C. digitalis proved to be C. heymonsi (see below). Indeed Borgmeier’s (1967) Fig. 20 of the hypopygium of C. digitalis is in fact C. heymonsi .

Material

Female holotype and male allotype, caught in copula, and 8 paratype males, U.S.A., Virginia., Falls Church, light trap, 10 June 1958, 1­11 September 1961 and 17­26 July 1962, W. W. Wirth ( USNM ­ 26­62); 5 males from type locality, 13 and 22 August, 2 and 28 September 1960 and 17 September 1962, W. W. Wirth ( USNM); 1 male, Virginia, Fairfax Co., Springfield, 25­31 May 1989, Malaise trap, G. W. Courtney ( LACM ­ Ent. 095464); 2 males, North Carolina, Murphy, Peach Tree Road, 16­20 June 1998, Malaise trap, R. George ( CUMZ ­ 20­82); 2 males, 3 females, North Carolina, Swain Co., Revensford, floodplain forest, pitfall traps, 1­8 August 2001, E. Bernard, T. Goodrich, P. Jennings ( CUMZ ­ 14­71); 2 females, Tennessee, Sevier Co., Twin Creeks, 594m, Malaise trap, 3­ 18 July 2000, C. Parker, I. Stocks, M. Petersen ( CUMZ ­ 14­69). Holotype male of C. digitalis, Malaya , Selangor, Kuala Lumpur and paratype male, Selangor, N. Klang Rantau Panjang ( USNM ­ 26­64). Also recorded from every other Biogeographic Region except the Palaearctic.

Figures

FIGURE 35. Chonocephalus americanus female, tergite 8 (to left) and sternite 8, furca and spermatheca. Scale bar = 0.1 mm.

FIGURES 5 ­ 8. Chonocephalus americanus male, details of hypopygium: (5) left side of epandrium from below; (6) hypandrial lobes, deflected forwards so that upper (inner) face is exposed to view; (7) left gonopod; (8) right gonopod. Scale bar = 0.1 mm.