117 



wide, ciisliion-like, elevated, ;iiul witli several rows of bristles, which, 

 however, ascend only to the tip of the third antennal joint. The ^enjB 

 are densely covered with erect hairs; on the lower niarjiin of the same 

 are longer setjc. The bristles of the head are more dense in the female 

 than in the male, bnt in the latter the bristles are somewhat hmger. 

 The scntellum has, besides the marj;inal bristles, on the disk two very 

 pronounced macrochet;e amidst the shorter pubescence. The abdomen 

 shows along the entire hind marjiin of the third segment one row of 

 macrochetic; the fourth segment is, on its upper surface, beset with 

 long hairs and bristles, the latter being denser in the male than in the 

 female. Aside tiom these there are no macrocheta?. The wings have 

 no distinct marginal thorn; the posterior transverse vein is nearer to 

 The curvatme of the fourth longitudinal vein, which has no appen- 

 dicular branch, than to the small transverse vein. The i)osterior tibite 

 are furnished on the upper side with a row of equally long, very stout 

 and dense setae, which sometimes are closely applied to each other so 

 that the tibia has the appearance of being unistriately ciliate. The 

 pulvilli and the claws are longer in the S than in the 9 ; the front 

 tarsi of the latter are hardly flattened. 



I must remark here that in his Hist. Naturelle des Dip. des Environs 

 de Paris (18G3, i, p. 893), Eobineau Desvoidy has established a genus, 

 Verreauxia, on a Tachinid from Tasmania, which appears to be very 

 closely allied to Crossocosmia m. It agrees wath the latter in the ar- 

 rangement of the bristles of the abdomen as well as in the shortness of 

 the two basal joints of the arista, but the frontal pubescence is quite 

 different, and is described as follows: ''Front u'ayant que de cils raids, 

 petits et pen prononces." 



Regarding the specific determination as given by Sasaki, in his above 

 cited paper, the following points could be adde<l: The tiy resembles in 

 general appearance N^emorceapellucida, Meig.* The antennae are shorter 

 in the male than in the female; the first and second joints, as well as 

 the blackish pubescent palpi, the suctorial tlaps of the proboscis, and 

 the distinctly separated oval margin are rust colored ; the arista is long, 

 moderately thick at basal half, thence gradually narrowing. The fi'ontal 

 stripe is velvety black, the frontal orbits are black interiorly, with 

 whitish priiinescence, which extends more densely over the whole face 

 and over the gena;, and which has a more yellowish tinge in the 3 . 

 The bluish-black thorax is sparsely grayish-white pruinose, especially 

 in front, and has four narrow, equidistant, black longitudinal stripes, 

 of which the two inner ones do not extend much beyond the transverse 

 suture, and show between them, anteriorly, a trace of a median stripe.t 

 The scutellum is rust-brown with a slight whitish tinge; the bluivsh- 



"There is no ueetl of changing tliis to Xemorcpa conjuncta Routl. 



tThe four rows of dorso-ccutral bristles consist in front of the trausvers.i suture, of 

 three bristles in each row, behind the transverse suture the two inner rows have 

 three bristles each, the outer ones each four. 



