432 Miss G. Ricardo — A Revision of 



so numerous or long as in the male specimen of varius. It 

 appears probable that Macquart's male belongs to another 

 species of Neoitamus, but the question must be left in 

 abeyance till further material is available, and for this reason 

 priority is given to Walker^s name. 



In Brit. Mus. Coll. 



Types of Asilus vnrius consist of two males, co-types, one 

 presented by Col. Sinclair, one from Mr. Eai'l's collection ; 

 and three females, co-types, added in the 7th volume ' List 

 Dipt. Brit. ]Mus./ from Auckland, presented by Col. Boltou ; 

 a long series of specimens are in the collection from New 

 Zealand. 



A small blackish species, the legs bluish black ; tibiae 

 reddish yellow. Wings hyaline, greyish round, the posterior 

 border and at apex. 



Length, ^ 17-18 mm., ? 18 mm. 



Fctce black, Avith white or yellowish tomentum at sides ; 

 tubercle large, black, shining ; the moustache composed of 

 many black bristles and a few long white hairs below. 

 Antennae with black hairs on the first two joints. Beard 

 white and the hairs round head white. Head excised a little 

 behind, with black incurved hairs at occiput. Thorax black, 

 with two ashy-grey or yellowish tomentose stripes, grey at 

 sides, the pubescence on dorsum black and some short black 

 bristles present, with longer ones at the sides. Scutellum the 

 same, with four large black bristles on posterior border, often 

 yellow in the female. Abdomen black, with grey or whitish 

 segmentations and short black pubescence, some white hairs 

 at base on segmentations and yellow bristles at sides ; geni- 

 talia in male club-shaped, large, swollen at tips, black and 

 shining with black hairs and a few white ones intermixed ; 

 ovipositor in female long, including the sixth and seventh 

 segments of abdomen. Legs black ; femora with long white 

 hairs below, the middle and posterior pair with bristles on 

 underside ; tibiae testaceous '; bristles on legs black. Wings 

 with the small transverse vein at or beyond middle of discal 

 cell. 



Walker's var. B of bulbus, a female, is identical with the 

 types of varius. 



Itamus melanopogon is identical, judging from the de- 

 scription given by Schiner; the type came from Auckland. 



The original description of N. fraternus, by Macquart, of 

 naale and female is very short. V. d. Wulp described more 

 fully a female specimen from Rawas, Sumatra, he considered 

 to be identical with it ; the only difference in the description 

 appears to be that the outsides of tibiae have a black stripe 



