194 ENTOMOLOGICAL NEWS. [May, '15 



features are constant in these genera, but have been almost 

 entirely overlooked in the past. It is, in consequence, impossi- 

 ble for us to place with certainty Nemobius araucanus^ and 

 ncmoralis* of Saussure, though, from the tegminal and other 

 described characters, we believe that examination of the types 

 will prove them to be members of Hygronemobius. 



KEY TO THE SPECIES OF HYGRONEMOBIUS. 



A. Size large (length of body given as 10 mm.) . .basalts (F. Walker) 

 AA. Size small, form compact, head and pronotum stout, wings absent. 

 B. Maxillary palpi dark. General color dark brown, maculate 

 with a still darker shade. 



C. Dorso-internal spur of caudal tibia equalling metatarsus 

 in length. Tegmina : $ , covering 2/3 of abdomen ; $ , mi- 

 nute lateral pads almost entirely concealed by pronotum. 

 Ovipositor with dorsal margin of apex finely serru- 

 late alleni (Morse) 



CC. Dorso-internal spur of caudal tibia reaching 4/5 of dis- 

 tance to distal extremity of metatarsus. Tegmina : $ , cov- 

 ering all but apex of abdomen ; $ , very small lateral pads. 



Ovipositor with apex unarmed liura new species 



BB. Maxillary palpi white, with apex of last joint broadly, and 

 ventral margin of same narrowly, marked with black. General 

 color pale brownish maculate with a darker shade. [Tegmina: 

 $ , covering 2/3 of abdomen, sharply and transversely trun- 

 cate ; 9, squamiform, lateral, from Saussure]. Dorso-internal 

 spur of caudal tibia reaching about YA, of distance to distal ex- 

 tremity of metatarsus dissimilis (Saussure) 



AAA. Size very small, form delicate, head and pronotum proportion- 

 ately small, wings very elongate. (Maxillary palpi white. Dorso- 

 internal spur of caudal tibia reaching about 2/3 of distance to dis- 

 tal extremity of metatarsus, these members all very delicate. Teg- 

 mina : $ , sharply truncate but broadly rounded ; 5 , truncate, with 

 greatest production weakly indicated at sutural margin. Oviposi- 

 tor with apex unarmed. General coloration sooty, with paler por- 

 tions brownish ; wings whitish when in repose ; in general appear- 

 ance not nearly as maculate as any of the other species.) 



albipalpus (Saussure) 



Of the four species before us, alleni and liura appear to be 

 the most nearly related, though showing the widest difference 



3. Miss. Sci. Mex., Rech. Zool., VI, p. 388. (1874). 



4. Miss. Sci. Mex., Rech. Zool., VI, p. 390. (1874). 



