Drosophila dasycnemia Hardy

Lapoint, Richard T., Magnacca, Karl N. & O’Grady, Patrick M., 2009, Review of the spoon tarsus subgroup of Hawaiian Drosophila (Drosophilidae: Diptera), with a description of one new species, Zootaxa 2003, pp. 53-68 : 58-59

Drosophila dasycnemia Hardy

Figures 2 b and 3d

Drosophila dasycnemia Hardy, 1965: 236 –238

Diagnosis. Elongate setae present on the posterior surface of fore tibia. The legs are yellow except for brown coxae and terminal portions of the last tarsi (see Fig. 2 b). Wings are lightly infuscated with a brown marking apically, which extends from cell R1 to halfway through cell R4+5 (see Fig. 3 d). The thorax is brown, and the abdomen is almost entirely dark brown, with the last tergite being yellow.

Types. HAWAI‘I: Holotype ɗ (BPBM 6337) Upper Ōla‘a Forest, viii.1952, DEH ( Evenhuis 1982).

Material Examined. HAWAI‘I: 61ɗ have been deposited in the BPBM: ɗ, Kaiwiki, ix.1918, OHS; 2 ɗ, Stainback Highway, 3600’, x.2006, KNM, RTL, GMB; 2 ɗ, Stainback Highway, Tom's Trail, 3200', x.2006, KNM, RTL, GMB; 2 ɗ, Kīpuka 9, Kaūmana Trail, x.2006, KNM, RTL, GMB; 5 ɗ, Ōla‘a Forest, x.2006, KNM, RTL, GMB; 5 ɗ, Ōla‘a Tr 18, vi.2006, KNM; 10 ɗ, Ōla‘a Tr 18, ii.2006, KNM; 3 ɗ, Kawaihae Uka, Kohalas, x.2006, KNM, RTL, GMB; ɗ, Kukuiopa‘e, South Kona Forest Reserve, x.2006, KNM, RTL, GMB; 5 ɗ, Laupāhoehoe, 3700', x.2006, KNM, RTL, GMB. 30 ɗ from the UHIM have been examined from the following localities: 5 ɗ, Upper Ōla‘a, vii.1956, DEH, WCM; 3 ɗ, Upper Ōla‘a, viii.1958, DEH, WCM; 12 ɗ, Upper Ōla‘a, viii.1952, DEH, WCM; 7 ɗ, Kīlauea, viii.1958, JWB; 2 ɗ, Volcano, v.1915, AB; ɗ, Mud Lane, vi.1964, DEH, LHT. The following material is present at AMNH: 5 ɗ, Forest behind Volcano Solid Waste Transfer Station, O40.4, 5.vii.1998, PMO, SLM; 14 ɗ, Stainback Highway, 7–8.ii.1999, O49.3, PMO, SLM; 2 ɗ, Forest behind Volcano Solid Waste Transfer Station, O51.5, 12–14.iii.1999, PMO, JBS; 5 ɗ, Volcanoes National Park, Ōla‘a Forest, near Pole 44, O93.6, 7.ix.2000, PMO; 16 ɗ, Volcanoes National Park, Ōla‘a Forest, near Pole 44, O132.6, 2.viIi.2001, PMO, CDS. The following material is in the Essig Museum of Entomology at UC Berkeley: 8 ɗ, Volcanoes National Park, Ōla‘a Forest, near pole 48, O247.2; O201321; 6–7.vii.2004, PMO, MG, CDS; 5 ɗ, Tree Planting Road, O256.8; O201497; 11.vii.2004, PMO, MG; 4 ɗ, Puu Makaala Trailhead, O257.1, O201318, 11.vii.2004, PMO, MG; ɗ, Kohala Mountains, Top of Waipio Falls, O269.6, O201595, 16.vii.2004, PMO, CDS, GS, SH, MG; 2 ɗ, Volcanoes National Park, Upper Ōla‘a Forest, end of Wright Road, O272.F, O 200625; 20.vii.2004, PMO, MG, GS, AC.

Distribution. This species is endemic to the island of Hawai‘i.

Behavior. Speith (1966:272).

Ecology. This species has been reared from leaves of Cheirodendron trigynum (Araliaceae) ( Heed 1968; Mangan 1978).

Illustrations. Morphological structures of this species are depicted in multiple publications including: foreleg ( Hardy 1965: 237, fig. 74a); phallus ( Kaneshiro 1976: 267, fig. 5 Ψ); terminalia, male, lateral ( Hardy 1965: 237, fig. 74c); wing ( Hardy 1965: 237, fig. 74b; Edwards et al 2007: fig7).

Molecular Biology. DNA sequences ( Baker & DeSalle 1997).

Figures

FIGURE 2. Fore-legs of selected males a) D. atroscutellata, b) D. dasycnemia, c) D. conformis, d) D. incognita, and e) D. percnosoma.

FIGURE 3. Wings of selected species a) D. atroscutellata, b) D. sordidapex, c) D. conformis, d) D. dasycnemia, and e) D. waddingtoni.