156 jf*'. Hermann: 



dass wir durch CociuiUet drei neue nord-amerikanische Lapbystia- 

 arten kennen gelernt haben. Vielleicht ist es nicht ganz unwillkommen 

 wenn ich hier seine in den Proceedings of ihe entoinological 

 Society of Washington Vol. VI 1904 pag. ISO erschienenen 

 Beschreibungen im Original wiedergebe. 



Laphystia flavipes n. sp. 

 Black, halteres and femora and tibiae except their apices, 

 yellow, the hairs and biistles whitish: second Joint of antennae 

 about two-thirds as long as the first two together, rather slender, 

 gradually tapering to the apex, the second Joint of the style wider 

 than the tirst, only slightiy longer than widc; head and body densely 

 gray pruinose, somewhat yellowish on tho face, front and mesonotum, 

 the broad front portion of the abdominal segments two to six except 

 on the sides, and the narrow bind margins of the first five segments, 

 polished; wings hyaline, the auxiliary, first vein and bases of tho 

 others yellow; lemainder of the latter brown. Length nearly 10 mm. 

 Montana and North Carolina. 



Laphystia limatula n. sp. 

 Differs from flavipes as follows: Second Joint of antennae 

 nearly as long as the first, the third robust, of nearly an equal 

 width; mesonotum not gray pruinose except along the lateral and 

 l)Osterior margins, that on the abdomon very thin. broad posterior 

 ends of the last five segments reddish yellow. New Mexico. 



Laphystia apaca n. sp. 



Black; the halteres, bases of tibiae and of the bind femora, yellow, 

 the hairs and bristlcs whitish; second Joint of the antennae about 

 half as long as the first, the third broad and only slightiy tapering 

 to the apex; head and body densely grayish pruinose, three broad 

 vittae on the mesonotum and a subtriangular spot at middle of basc 

 of abdominal segments two to six. polished; the median vitta of the 

 mesonotum is on its anterior third; wings hyaline; auxilliary vein 

 and bases of the others yellow remainder of the latter brown. 

 Length 8 mm. Texas. 



Hier wäre auch noch Dasypogon albiceps Mcq. (Dipteres 

 exotiques suppl. I, pag. G9) nachzutragen, der als verwandt mit 

 Laphystia sexfasciata Wied. bezeichnet wird und daher wohl auch 

 diesem Genus zuzurechnen sein dürfte. 



Offenbar stehen die 3 neuen Coquillct'schen Arten, sowie die 

 mutmassliche Laphystia albiceps unter sich sowohl als auch mit 



