Mil. F. P. PASCOJi ON THE CUKCULIONID^E. 465 



spined, but is at once diiFerentiated by the slender acute spines 

 placed on each side of the prothorax anteriorly ; the femora are 

 also spined at the apex. It is possible, however, that these may 

 be only sexual characters. Mr. Fry informs me that A. hren- 

 thoides, or possibly a nearly allied species, is found in the decaying 

 bark and wood of the " common red blacking plant " of the English 

 at Eio {Hibiscus, sp.), that it is nocturnal in its habits, and runs 

 rapidly, with a jerking motion. On the other hand, A.fasciatus, he 

 says, frequents the tops of high gi'asses in marsh-lands ; and this 

 shows how hazardous it is to generalize from one species to another. 

 Atenistes denticollis. (PI. XIX. fig. 6.) A. supra niger, subni- 

 tidus ; capite rostroque ferrugineis, nitidis, hoc tenuissimo, corpore lon- 

 giore, apicem versus arcuato ; mandibulis parvis ; prothorace breviter 

 ovato, basi tubulato, supra subtilissime disperse punctato, utrinque 

 antice dente acute porrecto armato ; scutello angustato, albido ; elytris 

 postice gradatim angustioribus, apice singulorum in spinam pro- 

 ducto, supra pilis rarissimis breviusculis dispersis piinctisque parvis 

 distantibus seriatim notatis ; infra nigro-piceus ; pedibus ferrugineis, 

 nitidis; femoribus apice spinosis, anticis infra dente obsoleto in- 

 structs; antennis ferrugineis, scapo oculum baud attingente. Long. 

 'A% Hn., rostr. 6 bn. 

 Hah. Brazil. 



Erodiscus analis. E. ferrugineo-fuscus, subnitidus, sujira pilis 

 rarioribus albidis dispersus ; rostro corpore vix breviore, leviter ar- 

 cuato, striis subtilissimis longitudinaHter notato; ])rothorace sub- 

 globoso, basi sat tubulato, supra punctis magnis eonfertim impresso ; 

 elytris prothorace perparum angustioribus, breviter elbptico-ovatis, 

 punctis oblongis parvis seriebus distantibus instructis, jiostice lu- 

 tescentibus, apice rotundatis; pedibus la^te ferrugineis; femoribus 

 rauticis, parte clavata fusca ; antennis onniino pallide ferrugineis. 

 Long. 2 lin., rost. fere 2 lin. 

 Hah. Brazil. 



Near E. ciconia, but shorter, more oval elytra, w^ith the apical 

 portion brownish yellow. I am informed by Mr. Fry that some 

 of the smaller species of this genus (not published, but allied to 

 E. motacilld) are not uncommon on the hill-sides above Rio in 

 the hot weather, frequenting flowers. Erodiscus differs from 

 Atenistes chiefly in the scrobes being connivent beneath. 



Imalithus. 



(Cryptorhynchina).) 

 nostrum dcprcssum, capita baud duplo longius ; scvohcs oblicpu-v), 

 prseinediana), infra oculos desinentes. Oculi laterales, supra 



