Vol. XXvi] ENTOMOLOGICAL NEWS. 195 



in the ovipositor; dissimilis shows a general resemblance to 

 these in form, while albipalpus is very distinctive in size, form 

 and general coloration, showing, in fact, a decidedly closer gen- 

 eral superficial resemblance to one species of South American 

 Cyrto.vipha (guyennensis Saussure) . 



When compared with Nemobius, the species of the present 

 genus show other differences besides those of the armament of 

 the caudal femora ; in the greatly reduced apical area of the 

 male tegmina and the greater divergence of the two axillary 

 veins ; in the wholly absent or very greatly reduced tegmina in 

 the females of several species, and in the ovipositor, which in 

 some of the species is wholly unarmed. 



But one species, Hygronemobius alleni, genotype, is known 

 from within the boundaries of the United States, having been 

 recently found by us in extreme southern Florida. 



Hygronemobius alleni (Morse). 



1905. Nemobius alleni Morse, Psyche, XII, p. 21. [2$, 2?, Mo- 

 raine Cay, Bahamas.] 



Nearest in relationship to H. liura, the present species may 

 be readily separated, particularly in the female sex, by the 

 characters given in the accompanying key. The original de- 

 scription is excellent but the minute lateral tegmina of the 

 female were unfortunately overlooked. 5 



In addition to that portion of the typical series which has 

 not been destroyed, we have had before us the following series, 

 found on the black soil and among drift in a mangrove swamp 

 near Miami, Florida. At high tide this area was under more 

 than a foot of water. The series was taken when the tide 

 was out, after long and laborious search; at the time the 

 weather was cool and the individuals were not rapid in their 

 movements, but were difficult to capture owing to the environ- 

 ment, their sombre coloration and their habit of hiding under 

 the drift or the sodden mangrove leaves. About the same 

 time, however, a species of Nemobius was found in a similar 



5. At the time the generic description was written, both adult females 

 of the typical series had been destroyed and it was then supposed that 

 the description of this sex was based on specimens in the instar pre- 

 ceding maturity. 



