18 EROTYLID.E. 



but rounded and with about seven denticules on each. The legs are pitchy-red, the knees 

 and the tips of the tibiae and tarsi blackish, and very long in both sexes. The antennae 

 are black, the apical five joints opaque, these latter forming an elongate and not very 

 wide club. 



This insect is labelled " Languria cenea, Chevr. (ahena, Sturm)," in Salle's collection, 

 but is generically distinct from the types of those species. From D. buprestoides it is 

 to be distinguished by the darker brassy-black colour, the rounded tips of the elytra, 

 and the punctuation of the head and thorax. The punctuation of the elytra in this 

 and other species is a variable and uncertain character. 



Five specimens. 



6. Dasydactylus chalceus. 



Trapezidera chalcea, Crotch, Cist. Ent. i. p. 393 \ 



Niger, subtus cum pedibus picescens ; capite prothoraceque minute disperse punctatis, fere lsevibus, his seneo- 

 micantibus ; elytris perobsolete punctato-striatis, interstitiis crebre punctulatis, apieibus rotundatis et 

 minute denticulatis ; prosterno truncate Long. 11-15 millim. S • 



Mas femoribus anticis et intermediis intus asperatis ; tarsis fulvo-pilosellis. 



Hdb. Mexico 1 , Toxpam ; Guatemala, San Geronimo, San Juan in Vera Paz 

 (Champion). 



The diagnosis is taken from the type in the Cambridge Museum. The essential 

 character by which this species differs from that here described under the name of 

 D. puncticeps is the nearly smooth head. Crotch did not notice the roughening of the 

 femora, not having seen females ; the single specimen in his collection is a male of the 

 larger size, and with it I associate three other examples. 



7. Dasydactylus nitidus. 



Nigro-subaeneus, nitidus, pedibus nigro-piceis, antennis tarsisque nigris ; capite crebre, prothorace obsoletius, 

 punctatis ; elytris creberrime substriatim punctatis, apieibus lsevigatis, rotundatis, et leviter denticulatis ; 

 prosterno apice truncato. Long. 10-12 millim. J $ . 



Mas prothorace convexiore, basi latiore ; pedibus anticis longioribus, femoribus subtilissime asperatis, tarsis 

 valde hirtulis. 



Had. Mexico, Cordova, Jalapa, Tapachula in Chiapas (Hoge). 



This species is very close to D. puncticeps, and separated from it chiefly on the 

 following grounds : — the antennae are not so long, and have the third to the sixth joints 

 very evidently shorter; the legs, especially the middle and hind pairs, also shorter. 

 I), nitidus is also a rather smaller insect ; and has the thorax less widened at the base, 

 and the femora less distinctly rough in the males. 



8. Dasydactylus puncticollis. 



D. nitidi summa affinitate, nigro-aeneus, nitidus, subtus cum pedibus pieeus, antennis tarsisque nigris ; capite 

 prothoraceque crebre sat fortiter punctatis ; elytris distinctius punctato-striatis, apieibus sublaevigatis et 

 vix denticulatis ; prosterno apice truncato. Long. 10-12 millim. J . 



