StnpliylinidcB of the Amazon Valhy. 317 



tarsi paler ; middle legs darker than the front ones, but 

 not black ; hind legs black, with the trochanters pitchy : 

 inider face of hind body scarcely so closely and coarsely 

 punctured as the upper. 



The male has a broad and deep excision at the hind part 

 of the ventral plate of the 7th segment of the hind body, 

 the front portion being filled with coarse, black, straight 

 seta\ 



Ega ; two individuals, i^ , '? . 



Allied to T. laticornis, but more slender, the antennte 

 not so broad ; the front parts duller in colour, and the 

 punctuation of the upper surface denser. 



17. Tcejioderna tccta, n. sp. Nigra, subdepressa, opaca, 

 cinereo-pubescens, antennarum basi palpisque testaceis, 

 pedibus piceis ; dense punctata. Long. corp. 4 lin. 



Mas : abdomine segmento 7" ventrali apice late, paulum 

 profunde exciso, excisione rigide nigro-setosa. 



Antennae ^ lin. long, broad and flat, pubescent ; two 

 basal joints yellowish behind, infuscate in h'ont, 4 — 10 

 each broader than its predecessor, the 10th much broader 

 than long. Palpi yellow, the apical joint infuscate at the 

 base ; mandibles red. Head broad and short, its surface 

 closely and rather coarsely punctured, with a conspicuous, 

 upright, Avhitish pubescence. Thorax quadrate, about 

 ^ lin. long ; the whole surface densely covered with mode- 

 rately coarse punctures, and bearing a whitish pubescence. 

 Elytra quadrate, flat, not longer than the thorax, rather 

 densely punctured, sparingly clothed with white pubes- 

 cence, which is replaced towards the extremity by a dark 

 pubescence, the apical portion slightly shining. Hind 

 body rather broad, black, coarsely and closely punctured, 

 bearing a white pubescence, which is scanty on the basal 

 segments, but dense and very conspicuous on the apical 

 ones; the extreme apex obscure red, but the colour con- 

 cealed by the pubescence. Under surface rather shining, 

 the punctuation on the hind body rather coarse but not 

 dense, the pubescence scanty. Legs pitchy, front tarsi 

 paler, and only moderately dilated, hind tarsi elongate, 

 nearly as long as the tibiae. 



In the male the ventral part of the 7th segment of the 

 hind body has a broad but not deep notch at the extremity, 

 the border of the notch being densely set with coarse, rigid, 

 black setee. 



Ega; one specimen. 



