102 THRASYGCEUS. 



wards the humeral angles ; the surface glabrous except at the sides, 

 and more evidently at the apex, where it is distinctly flavo-pubescent. 

 Antennae wanting, with the exception of the first two joints ; the first 

 broad, dilated towards the apex, and reflected backwards ; the second 

 short and truncate, both rafo-testaceous. Legs tolerably robust, sub- 

 pubescent, rufo-flavous, the extreme apex of the posterior femora 

 and the base of the posterior tibia? being suffused with fuscous. 



Brazil. In the cabinet of M. Deyrolle. 



Genus 13. THRASYGCEUS*. 



Labrum breve, transversum. 



Palpi maxillares elongati, subcylindrici ; art. 3"° subparallelo, et ad 

 apicem truncato, 4 t0 minuto, elongato. 



Palpi labiales art. 2" do subdilatato, ultimo elongato, attenuato. 



Antenxje Jill formes. 



Caput breve, hand antice productum, verticals . 



Thorax latus, transversus, antice subconstr ictus, ad latera marginatus 

 et rectilinearis. 



Elytra subdepressa, lata, punctato- striata. 



Pedes femoribus anterioribus sat robustis, tarsis brevibus, art. l m ° 

 triangulari, 2 nd0 brevi, lato, 3"'° lato et bilobo ; femoribus posticis 

 incrassatissimis, tibiis longitudinaliter depressis (hand cylin- 

 dricis) et marginatis, simplicibus, haud dente ad marginem 

 armatis. 



Labrum short, transverse, abruptly rounded at the margins. 



Maxillary palpi (Tab. IV. fig. 3 m) elongate, subcylindrical ; the 

 basal joint quadrate, minute ; the second broader, dilated, and ob- 

 liquely truncate near the apex ; the third somewhat broader than 

 the second, subparallel, and transversely truncate at the apex ; the 

 apical joint minute and elongate. 



Labial palpi (Tab. IV. fig. 3 n) : the basal joint dilated at the 

 apex ; the second less parallel than in the maxillary, transversely 

 truncate ; and the terminal joint elongate and attenuated. 



Antenna; filiform ; the basal joint slightly dilated and inflected 

 outwards from the base ; the second not ovate, but of the same form 

 as, and shorter than, the first ; the third to the fifth of equal length, 

 nearly equal in length to the first, more attenuated, slightly incras- 

 sated towards the apex, and obliquely truncate ; the terminal joints 

 are somewhat more attenuated ; the whole very finely pubescent : the 



* Qparri's. fortis; yvlor, membrum. 



