272 Mr. H. W. Bates on Ccmnibt/cidce 



nitidis, maculis ebumeis utrinque duabus ovatis, una 

 (antice nigro-marginata) paulo ante medium, altera (paulo 

 exteriori) pone medium, macula liumerali nigra ; geni- 

 culis fuscis. 



Long. 7 lin. $ . 



Ilah . — Tapaj os . 



Genus Sphj<:rion. 



Serville, Ann. Soc. Ent. Fr. 1834, p. 68 ; Lacord. Gen. 

 viii. 315. 



1. S^fJiC^'i'ion callklioides, n. sp. 



Depressum, ferrugineum, capite antice, antennis pedi- 

 busquo nigris ; elytris nigris vel ferrugineis, pube subtile 

 cinerea indutis et sparsim nigro-setosis, punctulatis, apico 

 unispinosis, inter spinam et suturam breviter sinuatis, 

 angulo suturale acuto ; capite dense punctato ; tliorace 

 transverse, lateribus tuberculo lato conico alteroque an- 

 tico, supra quinque-tuberculato, sparsim punctato; femo- 

 ribus clavatisj antennis articulis 3-5 unispinosis. 



Long. 6Hi lin. S- 



Undoubtedly congeneric with the typical form S. 

 cyanipenne, Serv. The species somewhat resembles in 

 general form and range of colours CaUidium {Fhyma- 

 todes) variahilc, but is broader. It seems to be closely 

 allied to Sph. rusticum (Burmeister) , from Uruguay ; but 

 I cannot feel sure of the identity of the two from the 

 description. 



JJah. — Santarem ; Tapajos. 



Found flying at night in and around houses. 



2. Sphcerion dncale, n. sp. 



Magnum, subdepressum, rufo-castaneum, antennis (ar- 

 ticulo basali excepto) , tibiis, maculis basalibus et margi- 

 nalibus lincatjuo suturali nigris; capite inter antennas 

 subplano ; thorace magno, lateribus medio tumido rotun- 

 dato, supra tuberculis duobus obtusis alterisque linearibus 

 la3vibus, interstitiis rugoso-punctatis, lateribus punctatis 

 opacis; scutello fulvo-sericeo ; elytris apice unispinosis, 

 angulo suturale obtuso, supra punctatis, pube subtilis- 

 sima cinerea indutis, macula basali, margiuibus (apicalibus 

 exceptis), sutura us(]uc })ono medium et ibidem fascia 



