ERTOCERA. 219 



among the Limnophilae on account of its five posterior cells ; 

 whether his Limnobia sumatrensis {Dipt. Exot. Suppl. 4e) like- 

 wise belongs here is less certain j it has four posterior cells. 



In the same year with Macquart's Eriocera, the genus Evani- 

 optera (E. fasciata Guer., from Brazil) was published by Mr. 

 Guerin (Voyage de la Coquille, Zoologie, Texte II, 2, p. 281; 

 Tab. XX, fig. 2, Insectes). The volume of the letter-press, as 

 appears from the date of Mr. Guerin's preface, was issued in 

 1838 ; the volume of the plates, however, must have appeared 

 much earlier. On the plate the new genus was named Caloptera, 

 but as this name had been used by another author in the interval 

 which elapsed before the publication of the text, Mr. Guerin 

 changed it in Evanioptera. In the mean time Mr. Westwood, 

 who had seen the plate representing Caloptera, identified with it 

 a species from Xepaul, which he described (Ann. Soc. Entom. de 

 Fr. 1835, p. 681) as Caloptera nepalensis. 1 Ecanioptera is an 

 Eriocera with four posterior cells. 



Pterocosmus, a genus introduced by Mr. Walker (List, etc. I, 

 p. 78), in 1848, is based upon some Asiatic Eriocerae, mostly of 

 dark coloring, with dark and banded wings. Seven species from 

 the Suncla Islands, China, and Xepaul have been described by 

 Mr. Walker, in the above-quoted work, and in the Journ. Proc. 

 Lin. Soc. Zool. I, p. 105, 1857. 



Oligomera Doleschall, published in 1857 (Tweede Bidrage, etc. 

 p. 11, Tab. VII, fig. 3), is likewise a genus based upon a species 

 of Eriocera (0. javensis), from Java. It has four posterior 

 cells, and the antennse of the male are short, eight-jointed ; the 

 joints of the flagellum are said to be of nearly equal length. 



Limnobia albonotata Loew, from Mozambique, described in the 

 work on Mr. Peters' voyage to that country, is an Eriocera. 



Physecrania Bigot (Ann. Soc. Entom. de France, 1859, p. 

 123, Tab. Ill, fig. 1), is an Eriocera with short antennae in the 

 male and five posterior cells. It shows some peculiarities which 

 may perhaps justify a generic separation, but it has nothing in 

 common w T ith Cylindrotoma, the author's statement notwith- 

 standing. The species P. obscura Bigot, is from Madagascar. 



1 It was a mistake on my part when I stated in the Proc. Acad. Nat. 

 Sci. PJiilad. 1850, p. 246, that Evanioptera probably belongs to the same 

 section with Amalopis. 



