2 EROTYLIDtE. 



Crotch's second species (as he himself points out) differs ; and as a fact the specimens 

 included under the name latipes, Saund., in his collection, not only, as he surmised, 

 belong to two or more species, but must be placed in different genera. 



Five or six of these specimens have long front legs and roughened femora and tibiae 

 of both the front and middle legs, and are males, being so far equivalent to the species 

 here described under the new generic name Dasydactylus ; while the typical example 

 (which appears to be the only one correctly identified with Languria latipes, Saunders), 

 from which Crotch drew his diagnosis, differs wholly from the others in many 

 respects. In this specimen the head is not symmetrical, and the soles of the three 

 basal joints of the tarsi, and notably the front pair, are clothed with close, short, and 

 squamose scales without setse or hairs ; while in the species of the Dasydactylus type the 

 tarsi are more or less hairy or setose, and the front pair in the male sex has the basal 

 joints not only widened, but often quite villose. Thus the sexes are more differentiated 

 in the species of the Dasydactylus type ; but it is especially noticeable that, with certain 

 exceptions, the species of the New World belong to the latter section, and that the 

 majority of the genera which exhibit the spongiose form of foot are from Eastern 

 Tropical Asia. 



Mr. Fowler while pointing out, in the Trans. Ent. Soc. Lond. 1885, pp. 381-383, 

 the important characters that exist in the structure of the head, has very naturally 

 been misled by this want of discrimination of the sexes, for his remarks about the 

 clypeus, or as I here term it the epistoma, apply to the Dasydactylus-lookmg males, and 

 not to the Languria latipes. It is therefore necessary to give other characters by which 

 the species allied to this type may be correctly assigned to their proper place: — 

 Goniolanguria (Crotch). Tarsi antici valde dilatati, subtus spongiosi fere velutini, supra 

 pube molli tenuiter vestiti maris hirtuli ; epistoma antice angulatum haud vel leviter 

 excisum. 



1. Goniolanguria (?) palmata. 



Nigro-Eenea, nitida, subtus cum pedibus nigro-picea ; capite prothoraceque fere glabris, hoc oblongo-quadrato ; 



elytris obsolete punctato-striatis, interstitiis minute subseriatim punctulatis, apicibus truncatis, leviter 



denticulatis. Long. 15 millim. S • 

 Mas abdominis segmento ventrali apicali ad apicem in medio dense nigro-pubescente. 



Hab. Panama, near the city (Champion). 



Fern. (?) abdominis segmento ventrali apicali minus dense pubescente. 



Hab. Guatemala, Purula (Champion). 



The general characters of the species now described agree pretty closely with those 

 of the type of Goniolanguria, Crotch; the head is not quite symmetrical, the left 

 mandible being larger than the right-hand one, and the gena being proportionately 

 swollen to afford it a basis ; a stridulating file is found when the head is bent forward 

 so as to withdraw the crown from the thorax; the front feet in both sexes (assuming 



