JSt,q)hi/linidcB of the Amazon Vallcfj. 313 



11. Tmiodema similis, n. sp. Elongata, nigra, an- 

 tennis pedibusque basibus rufis ; capite, thorace, elytrisque 

 cyanescentibus ; cinereo-pubescens, prothorace spatio 

 utrinque, elytris sutura apiceque et abdoinine segmentoruin 

 niarginibus posterioribus lajvibus. Long. corp. 7 lin. 



Antennae about 2 lin. in length, scai'cely thickened to- 

 wards the extremity, pitchy, with the two basal joints 

 yellow behind ; 3rd joint much shorter than 1st, about one 

 and a half times as long as 2nd. Palpi pitchy yellow, 

 with the n])per margin of the last joint yellow ; mandibles 

 pitchy, reddish at the apex. Head coarsely and densely 

 punctured and clothed with a pale pubescence, a trans- 

 verse space in front of the vertex smooth and shining. 

 Thorax 1 lin. long and about | broad, very densely punc- 

 tui-ed, a small space on each side in front and the hind 

 margin free (in a fresh specimen probably densely clothed 

 Avith ashy pubescence). Elytra fully P lin. in length, 

 densely punctured; the suture (except at the base) has a 

 very narrow space free from punctures, and the hind 

 margin is also free, but the punctures almost completely 

 cover the extreme base and front angles (in Iresh speci- 

 mens the punctured parts probably covered Avith a dense 

 pale-ashy pubescence). Hind body black ; the segments 

 punctured and pubescent, except on their apical portions ; 

 8th segment and hind margin of 7th reddish. Legs pitchy, 

 with the femora red. 



In the male the hind margin of the ventral plate of the 

 7th segment is a little emarginate at the extremity. 



Ega ; a single male individual. 



Very closely allied to T. cinerea, but narrower, with 

 the thighs clear red, the front parts on the upper surface 

 quite blue, and the thorax and elyti'a more evenly covered 

 with punctures. The male has the ajdeagus considerably 

 longer than in cinerea and rounded at the extremity, 

 whereas this is acuminate in cinerea. The sins^le in- 

 dividual, which is all I possess for comparison, has the 

 upper surface very rubbed, but I have no doubt, from the 

 few hairs that remain, that in the fresh state the pubes- 

 cence is very similar to that of T. cinerea. 



12. TcBnodema rudis, n. sp. Nigra, capite, thorace, 

 elytrisque minus distincte metallescentibus ; pedibus piceo- 

 rufis, basi dilutioribus; antennarum basi testaceo, ])alpis 

 piceo-testaceiS;, abdominis apice ferrugineo ; cinereo-pubes- 



