186 Mr. D. Sliar})'s Contributions to tlie 



antennis articulis 3 — 10, clytrisqnc biisi infiiscatis. Loiigt. 

 Corp. 1 .\ liii. 



Antonna3 considercably loiif^cr than the licad, the two 

 basal joints and the last joint yellow, the others infuscate; 

 3rd joint abont as lont>; as 2nd, 6 — 10 rather transverse. 

 Head narrower than the thorax, narrowed in ii-ont, reddish- 

 yellow, eonvex, the Iront part sparini^ly and indistinetlv 

 punctured, the vertex smooth. Tliora.x a little narrower 

 than the elytra, considerably longer than broad, distinctly 

 narrowed in front, the sides slig-htlv curved ; it is reddish- 

 yellow, and has four ])uncturcs ])]aeed near one another 

 on the middle, behind ; in fi'ont of these, two others much 

 farther apart, and on each side five or six other punctures 

 near the lateral niai'ii'in. Elytra scarcely so long as the 

 thorax, yellowish, indistinctly darker near the base, 

 sparingly and indistinctly punctured, the punctures dis- 

 posed in lines. Hind body dusky yellowish, very finely 

 and densely punctured. Legs pale yellow. Front tarsi 

 not dilated. 



Ta])ajos; two specimens. 



Sterculia. 



This genus consists at present of six species, all peculiar 

 to South America, and I liere describe seven new ones. 

 The genus contains two ajiparently distinct groups : the 

 first of these consists of large and brilliant species, which 

 are amongst the most sj)lendld of the St<i])lii/linidce ; the 

 species, however, bear such an extreme resemblance to one 

 another, that, although I have twenty different forms be- 

 longing to it se})arated in my collection, I am by no means 

 sure how many species they represent : the second group 

 consists of l)lack and rather smaller sjiecies, which have the 

 mandibles much less elongate than the metallic s])ecies. 

 .y. lunazonica, S. jxtuloc/tsis and S. discolor belong to 

 the group of metallic species, while the other four here 

 described are black species with shoit mandibles. 



1. Sfrrculifi amitzoniccu n. sp. Cyanea, nltida, thorace 

 elytrls l)revi()r(', caplte oblongo, subtus lateril)us iiarce 

 ])unctat(), medio lie\l, mandibulls eapite brevidiibns. 

 Long. Corp. lolln.; lat. elytrorum apice 2;V lin.; prothoracis 

 basi H lin. 



Antemia' i-athcr stout, not thickened after the 4th joint ; 

 3rd joint about twice as long as 2nd, 4 — 10 transverse; 



