StujjlnjluLuhe of tJie Amazon Vidleij. 195 



1. Tesha gig as, n. sp. Nigra, sat nitlda, capite crebre 

 punctata, anteunis avticiilis 4 — 10 leviter transversis. 

 Long, coi-p. 15 lin. ; lat. (abdominis) 2| lin. 



A o-iant amono- the Xantholinini. Head broader than 

 the thorax, quite as broad as the elytra, not quite so long 

 as bi-oad, narrowed to the front, at the back part -with 

 numerous coarse round punctures, in fr'ont of these "svith 

 finer oblong ones, the very front part without punctures ; 

 beneath coarsely and rather sparingly punctured, at the 

 hind angles Avitli a sinuate suture. Palpi reddish. An- 

 tennae black, the first three joints shining, the rest pubes- 

 cent ; the 1st joint long and stout, 3rd rather longer than 

 2nd ; 4 — 10 not at all thicker fr'om the 4th joint to the 

 extremity, and with little difference in the length of these 

 joints ; last joint about twice as long as the 10th, obtusely 

 jiointed. Thorax narrower than the elytra, narrowed 

 behind, considerably longer than broad, black and shining, 

 with a very fine and short impressed line in front of the 

 scutellum, with a coarse puncture on each side near the 

 front angles, and at the front angles with several other 

 finer punctures ; also on each side the disc, a little behind 

 the middle, is a single puncture, and between this and the 

 front are two or three others on each side placed close 

 together, and numerous others close to the lateral margin. 

 Scutellum with three or four punctures in the middle. 

 Elytra about as long as the thorax, black, rather coarsely 

 and sparingly punctured, the punctures closer near the 

 suture than elsewhere, Avith a few fine sette. Hind body 

 broad, black, rather closely and sparingly punctured, Avitli 

 long rufescent sette, especially distinct at the sides ; 8th 

 segment pitchy. Legs black, w'ith the tarsi pitchy. 



St. Paulo; one specimen. 



2. Tesha laticornls, n. sp. Nigra, nitida, capite dense 

 rugoso-punctato, antennis articulis 4 — 10 valde trans- 

 versis. Long. corp. 9 lin.; lat. (abdominis) 1§ lin. 



Shining black with the exception of the head, this being- 

 dull black from its coarse rugose sculpture. Antenn;e 

 short and very stout, slightly thickened from the 4th to 

 the 10th joint ; 1st joint stout and distinctly curved; 2nd 

 and 3rd joints short, 3rd not so long as broad, shorter 

 than 2nd; joints 4 — 10 strongly transverse; 11th joint 

 rather short, obtusely pointed. Palpi dark yellowish. 

 ]Mandibles shining black, stout. Head quite as broad as 



O 2 



