BIOLOGIA CENTRALI-AMERICANA. 



Z00L0GIA. 



Class INSECTA. 

 Order COLEOPTERA. 



Fam. EEOTYLnXE. 



Subfam. LANGUBIIBES. 



The " Languriides," as a subfamily of the Erotylidse, may be termed aberrant — not 

 that they are separated from the rest of the family by any very trenchant character, 

 but on account of their remarkably homogeneous elongate form and generalized struc- 

 ture. A proper classification of them has not hitherto been attempted ; the described 

 species are, however, now becoming so numerous that some further division of the 

 group into genera has been found necessary, and an attempt to express their mutual 

 relationships will be found in a paper by myself in the ' Proceedings ' of the Zoological 

 Society, 1887, pp. 358-362. The family is widely distributed, being found in the Tropics 

 generally, in the Nearctic Region and Japan, in North Australia, and at the Cape of 

 Good Hope. No species occur in Europe, New Zealand, or Madagascar, nor do any 

 extend far north or south of the Tropics. 



GONIOLANGURIA. 



Goniolanguria, Crotch, Cistula Ent. i. p. 395 (1876). 



Type Languria latipes, S. Saunders, Trans. Ent. Soc. Lond. i. p. 149, t. 14. f. 1 (1834). 



This genus was established by Crotch- and formulated as follows : — " Elytra produced at 

 the apex, slightly divaricating, denticulate ; tborax margined at the base, with a small 

 stria on each side ; head with the sides angulated for the very large mandibles ; occiput 

 with one stridulating series ; antennae with a five-jointed club ; tarsi very broadly 

 dilated." 



In such a difficult matter as the formation of genera in this group has proved (so 

 difficult that the late Baron von Harold abandoned it in his paper on the Eastern 

 forms), it will easily be imagined that the formula quoted above is wholly insufficient. 



biol. cente.-amer., Coleopt., Vol. VII., September 1887. B* 



