the Golcoj)Urous, faraihj Passalidie. 449 



very insignificant and I do not tlunk the desirability of 

 sinking bis name Eimoricus will be disputed. Similarly 

 Bimor Jioneskis, Kuvv., owes its existence only to the 

 occasional absence in Costa Rican examples of 0. sargi, 

 Kaup, of a slight furrow upon the scutellum and a few 

 other variable features of no greater importance. 



Bhodocaiithoints mailki, Perch., has been quite un- 

 naturally renaoved by Kuwert to the neighbourhood of 

 Phoroneus and renamed Polyacanthoints, which is certainly 

 a redundant name. Of the specimens attributed by Bates 

 to the same species I can only recognise those from 

 Cordova, Orizaba and Jalapa as really belonging to it. 

 Other Mexican examples belong to Nclcidcs'pundatostriatus, 

 Perch, and curtus, Bates, the series from Nicaragua 

 appears to be another species, and the specimen from 

 Chiriqui yet another. P. molestus, JKuw., is very difficult 

 to distinguish from P. mailki, Perch. The genera Phodo- 

 canthctpus and Ndcides, although placed in different groups 

 by Kaup and Kuwert, have been distinguished solely by 

 the degrees of spininess of the middle tibia, which, as it 

 shows a gradual crescendo from one extreme to the other, 

 makes the line of demarcation quite arbitrary. Another 

 difference which generally accompanies that of the middle 

 tibia has not been noticed. It consists in the degree of 

 prominence of the eyes, which in the species with strongly 

 spined middle tibiee are sunk in the head, very small and 

 in general coarsely facetted. In the other series {Ncleides) 

 they are large and prominent and typically finely- facetted. 

 This correspondence although not exact, probably indicates 

 some difference o J habit. Phodocanthoints curtus, Bates, 

 and inops, Truqui, must be placed in Nelcidcs. Both have 

 been wrongly determined by Kuwert. The former is very 

 closely allied to N. punctatostrkdus, Perch., differing only 

 in its shorter form. Although Bates recognised only 

 a single specimen, identical individuals from Mexico, 

 Guatemala and Panama were placed by him in P. punda- 

 tostriatus and P. mailki. 



The genus Plcurostylus owes its existence only to the 

 exigencies of the Kaupian system. The type specimen of 

 Plcurostylus trapezoidcs in our collection is a Brazilian 

 species of the very common genus Veturiiis. By some 

 accident the label of an Indian insect became attached to 

 it, but there is no apparent reason why Kaup assigned 

 it to his " SolenocycleoB " as a probably African species, 



