DIPTERA 73 



legs lighter, with yellow femora, wings with the last section of the fourth vein about 

 twice as long as the penultimate. From D. cxigiia this species differs in the number of 

 hairs on the arista and in the colour of the halteres. 



Hab. Hawaii, Kona, one male, 2000 ft., September 1S92 ; Olaa, one male and 

 one female, July 1895. 



Fam. ASTEIIDAE. 



Astp:ia Meigen. 



The three species described below have only two bristles on the scutellum, thus 

 disagreeing with Schiner's diagnosis of this genus (Fauna Austriaca, 11. p. 280). More- 

 over the arista of the antennae is of a different nature to that of the European species. 

 The neuration is so distinctive, however, that I have little hesitation in placing them 

 here for the present, although ultimately they may serve as types of a new genus. 



(i) Asteia /lawaiiciisis, sp. nov. 



$ ?. Long. Corp. 2^ — 3 mm. ; al. 3 — 3^ mm. Front shining black, face greyish 

 and shining, proboscis and palpi reddish-yellow ; antennae blackish-brown, with the 

 under side of the second and third joints whitish-yellow, arista in the form of a zigzag 

 with a short hair at each bend. Thorax shining black ; pleurae also shining black, 

 but with a lemon-yellow stripe running from the base of the fore coxae to the root ol the 

 wings, scutellum shining black with a light yellow spot at the apex, halteres blackish. 

 Abdomen quite black above, with the apical segments more shining ; venter and sides 

 yellow. Legs yellow, with the apices of the fore femora, the whole of the fore tibiae 

 and tarsi blackish-brown and the intermediate and hind femora and tips of the tarsi 

 more or less infuscated. Wings slightly tinged with yellowish-brown. 



Hab. Hawaii, Kona, four males and one female, 3500 — 4000 ft., June — July 

 1892 ; Olaa, one female, November 1896. 



(2) Asteia apicalis, sp. nov. 



J. Long. corp. 2 — 2^ mm. ; al. 2\ — 3^ mm. Similar to A. hazuaiicnsis. but 

 differs as follows: arista of antennae nearly straight, with the hairs less erect, so that 

 they are difficult to see except under a high power ; yellow spot on the scutellum much 

 larger and in some specimens almost extending to the base and thus dividing the black 

 into two portions ; halteres lighter and somewhat yellowish ; legs yellowish with the 

 apical joints of the tarsi blackish, femora only a little infuscated towards the apex ; 

 wings quite clear. 



Hab. Hawaii, Kilauea, four males, July 1895. 

 F. H. III. 10 



