DICRANOMYIA. 65 



is a short distance anterior to the origin of the prsefurca; the subcostal 

 cross-vein is at a short distance from the tip of the auxiliary vein. 

 Long. corp. 0.3—0.35. 



Syn. Dicranomyia pudica 0. Sacken, Proc. Ac. Nat. Sc. Phil. 1859, p. 212. 



There is not much to add to the diagnosis; the stigma is 

 scarcely apparent ; the auxiliary vein joins the costa a little 

 before the origin of the prsefurca ; the cross-vein is not far from 

 its tip (at a distance shorter than half the length of the stigma) ; 

 the antennas are yellow. 



Hab. Illinois (Kennicott). 



At the time when I prepared the original description of this 

 species, I had two male and four female specimens before me. 



6. I>. rostrifera, n. sp. % and 9 .— Fusca, thoracis vitta obscuriori, 

 rostro et proboscide elongatis, fuscis ; antennis nigro-fuscis ; vena? aux- 

 iliaris apex prsefurcse initio anterior ; prsefurca brevi ; cellula discoidali 

 aperta. 



Brown, the thorax with a darker stripe ; rostrum and proboscis elongated, 

 brown ; antennas brown ; the tip of the auxiliary vein is anterior to the 

 origin of the prsefurca, the latter short ; discal cell open. Long. corp. 

 0.2—0.25. 



Head, including rostrum, palpi, and antennae fuscous ; rostrum 

 and proboscis unusually prolonged, being almost as long as the 

 head. Thorax fuscous, sericeous with yellowish above and with 

 a dark brown stripe in the middle ; sericeous with cinereous on 

 the pleurae ; scutellum tawny, metathorax brown. Halteres with 

 an infuscated knob, stem pale, Abdomen brown ; genitals sub- 

 ferruginous. Feet dark tawny, coxae pale. "Wings hyaline ; 

 stigma short oval, pale ; the tip of the auxiliary vein is anterior 

 to the origin of the second longitudinal vein by about half the 

 length of the stigma or more ; the subcostal cross-vein is at 

 about an equal distance from the tip of the auxiliary vein ; the 

 first longitudinal vein has the marginal cross-vein close by its 

 tip ; the praefurca is short, not much longer, if longer at all, than 

 the distance between the origin of the third longitudinal vein 

 and the small cross-vein ; discal cell open. 



Hab. New York ; three male, one female specimen. The 

 venation of this species is exactly like that of L. brevivena. I 

 5 July, 1868. 



