Staph ijUnidcB of the Amazon VaUey. 137" 



elytris opacis, obsolete parceque punctatis ; abdomine seg- 

 mentis basalibus medio infuscatis, parce punctatis. Long. 

 Corp. 4 2 lin. 



Mas: tarsis anticis sat dilatatis, abdomine segmento 7" 

 ventrali apice medio minus profunde excise. 



AntennfE short and moderately stout, blackish ; 1st joint 

 pitchv, the extreme base of each of tlie following joints 

 reddish ; 3rd joint longer than 2nd, 4th rather longer than 

 Woad, 8 — 10 rather strongly transverse ; palpi reddish. 

 Head brassy, moderately shining, Avith two punctures 

 behind the labrum, each placed in a depression, with two 

 or three along the margin of the eye, and some others at 

 the extreme hind angles ; all the middle part impunctate ; 

 it is distinctly narrower than the thorax. Thorax dis- 

 tinctly longer than broad, a good deal narrow'er than the 

 elytra, along the middle of an obscure aeneous colour, the 

 sides and base yellowish; it is distinctly sinuate at the sides 

 and a little nai'rowed behind ; on each side the middle, 

 at some distance from the front, is a single puncture, 

 and two or three others at each front angle, elsewhere 

 imjninctate. Elytra not longer than the thorax, of a 

 yellow colour, opaque, sparingly and very obsoletely punc- 

 tured, and with scanty fine hairs. Hind body yellowish, 

 Avith the middle of the basal segments infuscate, sparingly 

 and finely punctured, and scantily pubescent, at each hind 

 angle of each segment Avith a long black seta ; anal styles 

 tawny yelloAV. Legs yellow, Avith concolorous spines ; 

 basal joint of hind tarsus as long as the three following 

 together. 



In the male the front tarsi are moderately dilated and 

 furnished beneath Avith pale pubescence ; the hind margin 

 of the ventral plate of the 7th segment bears a small notch 

 in the middle. 



A single specimen Avas brought back by Mr. Bates 

 Avithout any special indication of its locality. 



2. Gastrisus Icevitjatus, n. sp. Subdepressus, rufo- 

 testaceus, capite supra ajneo-micante. antennis fuscis. 

 Long. corp. 5 lin. 



Mas latet. 



Fern, tarsis anticis sat dilatatis. 



Antennas shorter than the head and thorax, moderately 

 stout, the basal joint pitchy red, the rest fuscous ; 3rd joint 

 a little longer than 2nd; 4th and 5th each about as long 



