402 ME. F. W. EDWAEDS ON DIPTEEA 



pollinose hind margin of sixth tergite is wanting ; hypopyrjium relatively rather large ; 

 venter thinly clothed with long whitish or yellowish-white hair, first six sternites and 

 hind border of following one greyish pollinose. Wings : veins clove-brown, ante- 

 rior transverse vein sJiort, thickened, and sligldly infuscated. Halteres isabella- 

 coloured, upper surface of distal extremities of stalks and a streak on inner side of 

 knobs clove-brown. Legs : coxae greyish pollinose, clothed with whitish hair ; distal 

 extremities of upper surfaces of hind femora, extreme tips of upper surfaces of front 

 and middle femora, and upper surfaces of all tibise and tarsi clothed with minute 

 black hairs ; upper surfaces of femora clothed, except as stated, with short, appressed, 

 yellowish hairs, mingled in case of front and hind femora with longish, erect, yellowish 

 hairs ; under surfaces of all femora and flexor surfaces of all tibise clothed with long 

 yellowish hair. 



1 3 . Mimika Eiver, July 1910. {Tyjye of the species.) 



23. Maika gloriosa. 



Laphria gloriosa Walker, Journ. Proc. Linn. Soc. London, iii. p. 84 (1859). 



1 3 . Mimika Eiver, July 1910. 



1 c? . Wataikwa Eiver, August 1910. 



This handsome species was previously represented in the National Collection by the 

 typical male and female and a second male — all from the Aru Islands [A. B. Wal- 

 lace); also by a third male from the Obi Islands, Molucca Group (C. W. B. van 

 Ben esse van Luivenhorg). 



Subfamily Asilinse. 



Genus Peomaciius. 

 Promachus Loew, Linnasa Entomologica, Bd. iii. p. 390 (1848). 



24. Promachus eaptor, sp. n. 



? . Length (2 specimens) 23 to 28-25 mm. ; width of head 5-4 to 6 mm. ; length 

 of wing 17'2 to 19'2 mm. 



Allied to and somewhat resembling Promachus (Trupanea) complens Walker, hut 

 distinguishable owing to the markings of the femora and the greater hairiness of the 

 pollinose abdominal bands. — First joints of antennm close together ; mystax composed of 

 black bristles, intermixed, especially heloio, with finer, yellotvish, bristly hairs ; dorsum 

 of thorax dark olive-brown, yellowish pollinose on each side, and with narrow yellowish 

 pollinose markings above; dorsum of abdomen black, first segment and lateral and hind 

 borders of three following segments buff-yelloiv pollinose and clothed with bright ochre- 

 yellow hair, distal portion of abdomen, consisting of last five segments, greatly attenuated 

 and drawn out ; tibice and middle femora partly black and partly ochraceous-nfous. 



Head : face yellowish pollinose, occiput greyish pollinose ; sides of front and region 



