ADELOCERA. 259* 



Elytra distinctly punctate-striate, the punctures of the interstices finer 

 than those of the striae. 

 Prothorax tuberculate in the middle at the base ; the prothorax and 



elytra rufous, with the disc partly black palliata. 



Prothorax not tuberculate in the middle at the base ; the prothorax and 

 elytra more obscurely coloured. 

 Body elongate. 



Elytra subparallel in their basal half mexicana. 



Elytra narrowing from about the basal third pollinaria. 



Body not elongate ; size small (8 millim.) massula. 



Prosternal grooves abbreviated ; antennae longer. 

 Antennae serrate in both sexes. 



Surface uniformly clothed with bluish-green scales viridis. 



Surface clothed with cinereous or fulvo-cinereous scales longicornis. 



Antennae strongly pectinate in the male pectinicornis. 



1. Adelocera caeca. 



Adelocera cceca, Cand. Revis. Elat. p. 18 \ 

 Hab. Guatemala, Yzabal (SalU l ). 



Described from a single example. 



2. Adelocera mixta. 



Adelocera mixta, Cand. Compt. rend. Soc. Ent. Belg. xxi. p. Hi (Elat. nouv. ii. p. 5) l . 



"Nigra, subnitida, convexa, pilis squamiformibus brunneis argenteisque intermixtis vestita; prothorace 

 latitudine longiore, convexo, punetato, angulis posticis acutis, divaricatis, earinatis ; elytris dorso 

 haud deplanatis, punctatis, leviter sulcatis, striis punctis destitutis ; sulcis tarsalibus nullis. — Long. 16, 

 lat. 4| millim." 



Hab. Mexico 1 . 



Unknown to me. It appears to differ from A. cceca chiefly in the carinate hind angles 

 of the thorax. 



3. Adelocera palliata, 



Elater palliatus, Latr. in Humb. et Bonpl. Obs. Zool. ii. p. 154, t. 16. fig. 3 l . 



Adelocera palliata, Cand. Revis. Elat. p. 29 2 . , 



Adelocera chapuisii, Cand. Monogr. Elat. i. p. 66, t. 1. fig. 5 3 . 



Hab. Mexico 3 (coll. Janson, ex Latreille), Volcan de Jorullo 1 ; Nicaragua, Chontales 

 (Belt, E. M. Janson). — Colombia 2 ; Ecuador, Balzar Mountains. 



Of this fine species I have seen nine examples from within our limits — one from 

 Mexico and eight from Nicaragua. The Mexican locality seems to require confirmation. 

 The insect varies in colour, the black on the thorax and elytra being more extended in 

 some specimens than in others. 



2L2 



