48 SERKICOKNIA. 



the middle. The general colour is more seneous, and the spots on the elytra are nearly 

 concolorous. 



AMORPHOSOMA. 



Amorphosoma, Laporte, Silb. Rev. Ent. iii. p. 166 (1835). 



This genus as at present constituted comprises some half-dozen species divided equally 

 between tropical America and India and the Malay Archipelago. The American species, 

 however, differ from their Old- World allies in having a costa od the disc of the elytra. 



l. Amorphosoma penicillatum. (Tab. IV. fig. 1.) 



Buprestis pennicillata, Klug, Ent. Bras. Cent. p. 11, t. 40. f. 12; Nov. Act. Leop.-Carol. Nat. Cur. 



xii. p. 429 (1825) \ 

 Amorphosoma pennicillatum, Lap. & Gory, Mon. ii. p. 2, t. 1. f. 1 2 . 



Hab. Nicaeagua, Chontales (Belt) ; Panama, Volcan de Chiriqui 2000 to 3000 feet 

 (Champion). — South America, Brazil 1 2 . 



STENOGASTER. 



Stenogaster, Solier, Ann. Soc. Ent. Fr. ii. p. 335 (1833). 



The type of this Tropical-American genus is S. linearis (Linn.) from Cayenne. 

 Stenogaster is remarkable from the fact that only the fourth joint of the tarsi is 

 furnished with a lamina. 



1. Stenogaster costifer. (Tab. IV. fig. 2.) 



Elongatus, depressus, supra niger, vix senescens, subtus seneus ; thorace fossulato, griseo-piloso ; elytris griseo- 



pilosis, fascia post medium, altera aute apicem nigris, costa ad basin fu|'cata. V"' 



Long. 5|-7 Hn. 



Hab. Mexico, Izucar (Salle) ; Guatemala, San Geronimo (Champion) ; Nicaragua, 

 Chontales (Belt). 



This species resembles S. linearis in general form, but is nearly black above. It is 

 at once distinguished from its allies by the costa of the elytra dividing into two branches 

 near the base, one branch going to the shoulder, the other towards the scutellum. The 

 punctures on the elytra are rather large, and have a tendency to form lines. The fine 

 greyish pubescence gives a mottled appearance, as in some other species of the genus ; 

 but there is a well-marked, rather broad, black band a little behind the middle, and 

 another (less distinct) one near the apex. The prosternum is deeply longitudinally im- 

 pressed, the impression closely punctured. Each elytron has a small tooth at the apex. 



2. Stenogaster fossulatus. 



Stenogaster fossulatus, Chevr. Col. Mex. Cent. ii. fasc. 8, no. 192 (1835) 1 . 

 Hab. Mexico, Tuspan *. 



This and the following species are unknown to me. 



A 



