368 Mr. H. W. Bates on the 
7. Agra infuscata, Klug. 
Azra infuscata, Klug, Entom. Monogr. p. 15, pl. i. fig. 3. 
A. angustior, elongata, nigro-zenea, pedibus interdum rufescen- 
tibus; capite (g) pone oculos conico, (@) rotundato- 
attenuato; thorace grosse rugoso-punctato ; elytris apice 
oblique truncato, angulis suturalibus acutis, haud productis 
nec reflexis, dorso lineatim foveolato. 
é Femoribus validioribus, tarsorum anticorum articulo basali 
magno, dilatato; mesosterno, trochanteribus posticis, seg- 
mentorum ventralium plagis duabus, confertim punctatis et 
pilosis ; tibiis intermediis prope apicem intus dente parvo 
armatis, posticis pone medium leviter dilatatis, hirsutis. 
¢ Pedibus abdomineque simplicibus ; antennis articulo 8° 
brevissimo. 
Long. 93—10 lin. 
Para, Santarem (banks of Tapajos) and Ega, Upper Amazons. 
This species differs from A. anguinea in pretty nearly the same 
degree as the latter does from the giant 4. Megera. It has a wide 
range; I have specimens before me from localities 1,100 miles 
apart in a straight line from east to west. 
8. Agra reflexidens, Chaudoir. 
Agra reflexidens, Chaud. Ann. Soc. Ent. Fr. 1861, p. 114. 
A. elongata, nigro-zenea, foveolis elytrorum viridi-nitentibus ; 
capite maris robustiori, feminee angustiori, ovali, pone oculos 
sensim attenuato; thorace ut in 4. anguinea et A. infuscata, 
interstitiis paulo latioribus, levissimis ; elytris apice oblique 
truncatis, angulis suturalibus valde productis, dentiformibus, 
paulo reflexis. 
$ Femoribus validioribus ; segmentis ventralibus intermediis 
medio punctatis et pilosis; tibiis intermediis intus flexuosis, 
apice subito dilatatis, posticis pone medium vix hirsutis. 
® Antennis articulo 8"° valde abbreviato; pedibus abdomineque 
simplicibus, 
Long. 93 lin. 
FEga. In the same situations as the three preceding species, and 
once taken in copuld. The prolongation of the sutural angle is a 
good character whereby to distinguish this species, as it exists in 
both sexes ; it forms a distinet tooth or spine owing to its length 
and to the truncation being a little sinuated or incurved as it ap- 
proaches the angle. 
