THE CANADIAN ENTOMOLOGIST. 423 



The only real difterential character given by Pascoe for the separation 

 of Goetymes from Sitarida is indicated in the following words : " The 

 nearest ally of this genus is Sitarida White, from which, t?iter alia, it 

 differs, as it does from every other of the family, in its flabellate antennae." 

 It need hardly be pointed out that the above-mentioned difference is 

 nothing more than a sexual dimorphism, and a comparison of the types of 

 the two genera has convinced me that they not only belong to the same 

 genus, but that they probably even represent the sexes of one species. I 

 am the more encouraged in this idea by finding while looking through the 

 literature that ]Mr. Waterhouse has apparently held the same view, as Beau- 

 regaid {Les Ins. Ves., p. 407) writes : " M. Waterhouse m'a dit qu'il avait 

 des raisons de croire que Sitarida et Goetymes ne sont que le (^ et la $ 

 d'une meme espece." The differences in the antennal structures of the 

 specimens examined by me may be given in Pascoe's own words, as 

 follows : " In both they are ll-jointed ; but in Sitarida^ the first four are 

 simple, while each of the remaining seven throws out laterally and at the 

 base a short square lamina, this portion of the antenna being, in fact, 

 pectinate. In Goetymes'^ the first three joints only are simple, the 

 remainder being drawn out into long laminae, closely applied to each other 

 at the base, and forming a compact mass when at rest." The other 

 differences relate chiefly to the size and colour of the specimens, with the 

 exception that the thorax in the ? is (as would quite be expected) some- 

 what more coarsely punctured than in the ^ . It may be added that the 

 examination of the single specimens in the British Museum shows that 

 both have simple claws, a character not elsewhere met in the family except 

 in Horjiia.^ 



Two additional forms, both of them evidently distinct, have been 

 described, and, treating White's and Pascoe's species for the time being as 

 separable, the list of species now stands as follows : 



Genus — Sitarida, White, Stoke's Discov. in Austral, I, 

 J846, p. 508. 

 Goety??ies, Pascoe, Journ. Ent., II, 1863, p. 47. 



1. The female. 



2. The male. 



3. Westwood's statement (Trans. Ent. Soc. Lond.. 1875, p. 226), that his 

 genus Deridea has simple claws, is a mistake ; the claws, while very small, are 

 of the usual Aleloid type, as may be seen under the low power of a compound 

 microscope. 



