the Asillcla3 of Australasia. 591 



Abdomen dull black, the same width throughout, till the fifth, 

 which with the la.st two sci^nieuts is considerably narrower ; 

 the last two segments shining; on the posterior half of the 

 first four segments some dull fulvous short pubescence is 

 apparent. Lcf/s dull black ; the apices of fore femora, the 

 basal half of fore tibiae, and the basal third of middle tibiie 

 fulvous, fore aud middle coxaj with Mhitc hairs ; the legs 

 are armed with black bristles of varying length, two very 

 long ones are present on each side of the middle tibije, and 

 a shorter one on the fore tibiie. U'lnys fulvous, a little 

 paler at apex aud on posterior border, veius fulvous ; the 

 second posterior cell bulges into the first posterior on its 

 basal half, the first posterior not narrower at border, the 

 fourth narrower at border but not closed; the anal cell very 

 narrow but not quite closed, the fork of third vein is long, 

 the small cross-vein is placed beyond the middle of diseal 

 cell. Halteres fulvous. 



NeosaropogoNj gen. nov. 



Distinguished from Saropogon by the large size of the 

 species, by the absence of any visible style to third joint of 

 antenna, by the fourth posterior cell of iving being not (juitc 

 closed or widely open, and by the moustache being composed 

 of numerous bristles about the same size arranged fan-like 

 above the oral opening. 



In two of the species included in this genus the first vein 

 from the diseal cell bulges at the base into the first posterior 

 cell, and the fourth posterior cell is much narrowed at border ; 

 in the third species, N. prhiceps, it is widely open. 



The species as yet known are : — 



Neosaropog-on princeps, Macquart, Dipt. Exot. Suppl. iii. p. 179, pi. i. 

 tig. 14 [Das;/2)ogon'] (1848j ; v. d. Wulp, Tijd. v. Eutom. xix. p. 172 

 [Laparus] (187 Q) ; Bigot, Ann. Soc. Ent. France, (5) viii. p. 222 

 [Flesioiwiia] (1878) ; Williston, Trans. Amer. Ent. Soc. Pliilad 

 xviii. p. 76 [Ditst/pot/on] (1891); Kertesz, Cat. Dipt. -p. 121 [Neo- 

 laparus] (1909) ; Froggatt, Australian Insects, p. 300 \_Saro2)0(ion'] 

 (1907). — Dasypogon allia, Walker, List Dipt. ii. p. 8.34 (1849), et 

 vi. Suppl. ii. p. 487; Kertesz, List Dipt. p. 63 \_Isopogon'\ (1909). 

 Dasypogon carus, Walker, I. c. ; Kertesz, /. c. {_Isupogon]. Dasypogo7i 

 numicius, Walker, I. c. p. 335 ; Kertesz, /. c. [Isoj)ogon]. 



Neosaropogon salinator. Walker, List Dipt. ii. p. 32o [Dasypogo7i] (1849), 

 et vi. Supj)!. ii. p. 477 [Dasypogon] (1854) ; Kertesz, Cat. Dipt. p,66 

 lIIeteropogo7i] (1909). 



Neosaropogon claripennis, sp. n. 



Neosaropogon princeps, Macq. ^ 



Dasypogon caniis, Walker. 

 Dasypogon nuniicnis, Walker, 

 Dasyiwgon allia, Walker. 



