DIPTERA 



6i 



A male from Kona, Hawaii, 4000 ft., September 1892, another from Kaumana, 

 Hilo, 2000 ft., January 1896 (in the same island), and a female from Wainae Mts., 

 Oahu, April 1892, differ in having the pleurae lighter, the thora.x reddish-yellow rather 

 than cinereous, the fuscous markings on the wings fainter, and the central band only 

 commencing on the 2nd longitudinal vein and being quite broken up into spots. 

 D. /lawaiiensis appears, however, to be so variable, that at present I shall regard 

 these three specimens as representing a form of that species. 



Plate III. fig. 14, wnng. 



(8) Drosophila ocliracea, sp. nov. 



%. Long. corp. 3^—4 mm. ; al. 4 — 4I mm. Front yellow, sometimes a little 

 brownish ; face, proboscis, and palpi yellow ; antennae obscure yellowish with the third 

 joint darker and sometimes quite brown. Thorax, including the pleurae, scutellum, 

 and metanotum, ochraceous-yellow, without any dark markings, halteres yellow. Ab- 

 domen dark brown or blackish, with large quadrate yellow spots at the anterior angles 

 of the segments ; sometimes these spots are so large that the abdomen would be better 

 described as yellow with a dorsal line and the hind borders of the segments dark brown. 

 Legs yellow. Wings hyaline with the following fuscous markings : a spot on the 

 1st longitudinal vein, one on the middle and another at the tip of the second vein, 

 the former distinctly nearer the base of the wing than the posterior cross-vein, a small 

 roundish spot at the tip of the 3rd and an elongated one at the tip of the 4th vein, 

 both transverse veins broadly infuscated, the infuscation on the posterior one being 

 enlarged at each end into a more or less distinct round spot. 



Hab. Hawaii, five females, Olaa, Julv 1895. 



(9) DrosopJiila piliiiiaiia, sp. nov. 



$ %. Long. corp. 3^ — 4 mm. ; al. 4 — 5 mm. Front yellowish or reddish-brown, 

 orbits and vertical triangle lighter ; face cinereous or yellowish-cinereous ; proboscis 

 yellowish-brown, palpi yellow ; antennae reddish-yellow to brownish, the basal joints 

 somewhat lighter. Thora.x yellowish-cinereous, in the male more reddish-yellow with 

 obscure brown markings, pleurae yellow with brown markings, of which two brown 

 streaks on the mesopleurae are the most conspicuous, scutellum vellow with the dorsum 

 more or less dark brown, metanotum brown, halteres yellow. Abdomen as in 

 D. ochracea. Legs yellow, in the male the fore tibiae are furnished with long fine 

 hairs on the outer surface. Wings as in D. ochracea, but the spots, especially that 

 on the middle of the 2nd longitudinal vein, smaller and less distinct, the anterior 

 transverse vein hardly or not at all infuscated. 



