246 
side, red ; margins marked with a few very large punctures. 
Elytra parallelogram mical, broadly truncated, with both angles 
of the truncature produced into sharp teeth; surface closely 
punctured, the punctures and also the lateral carina ceasing 
abruptly at three-fourths the length of the elytron ; black, basal 
third rusty testaceous. Body beneath reddish testaceous; hind 
part of the breast dusky; abdomen black. Legs reddish testa- 
ceous ; tarsi and the hind legs black. 
S. Paulo, Upper Amazons. 
3. Amphionycha nigripennisj n. sp. 
A, elongata, parallelogrammica, ferruginea ; elytris, tarsis apicibus- 
que tibiarum nigris ; thorace tuberoso ; elytris late truncatis, 
angulis productis ; an tennis parce setosis. Long. 6^ lin. $ . 
Head broad, muzzle dilated and having prominent angles, 
testaceous red, shining, and marked with a few shallow punctures. 
Antennae shorter than the body, slender and tapering to the 
extremity, very sparingly setose ; third joint nearly twice the 
length of the fourth ; testaceous red. Thorax with a large ele- 
vated rounded tubercle on the disk, and a large obtuse one on 
each side, constricted near the anterior and posterior margins; 
bright testaceous red, marked with a very few shallow punctures. 
Scutellum bright testaceous red. Elytra parallelogrammical, 
broadly truncated at the apex, with both angles of the truncature 
produced and acute ; surface closely punctured, the punctures 
as well as the lateral carinse ceasing abruptly before the apex; 
deep black, suture near the scutellum red. Body beneath and 
legs testaceous red ; apical part of the abdomen, tarsi, and apices 
of the tibiae black. 
Ega. 
4. Amphionycha miniacea, n. sp. 
A. elongata, parallelogrammica, glabra, rufa ; elytris nigris, medio 
castaneo-rufis, utrinque maculis quatuor suturaque rufis ; antennis 
nigris, articulis tertio quartoque rufis ; thorace postice paulo dila- 
tato ; elytris truncatis, angulis externis valde productis, internis 
dentatis. Long. 4^-5^ lin. d $ . 
Head bright red, marked with large, distinct, scattered punc- 
tures. Antennse a little longer than the body in the , shorter 
in the ? , sparingly setose, black ; third, fourth, and sometimes 
also the fifth, joints reddish testaceous ; third joint one-fourth 
longer than the fourth. Thorax marked with very large scat- 
tered punctures, red ; sides behind the middle dilated. Elytra 
parallelogrammical, depressed above; apex broadly truncated, 
with the external angle of the truncature much elongated, and 
the sutural angle produced into a point ; surface closely punc- 
tured, dark red on the disk, shining black on the sides, glabrous. 
