of the Amazons Valley. 291 
productis ; antennis pedibusque testaceo-rutfis, illis articulis apice 
obscurioribus. Long. 34 lin. 
Head coarsely punctured, clothed with tawny-brown pubes- 
cence. Antennz as long as the body, reddish testaceous; apices 
of the joints, from the fourth, darker. Thorax sparsely covered 
with large and deep punctures, leaving a smooth dorsal line; 
sides each with a small acute spine; colour blackish chestnut. 
Elytra linear, narrowed close to the apex, the latter sinuate- 
truncate, with the angles acute, but not distinctly produced ; 
surface clothed with long, stiff hairs very dense towards the 
apex, punctured in rows, dull castaneous, sprinkled with greyish 
confluent spots. Body beneath dull reddish brown; legs testa- 
ceous red ; tibize simple. 
Santarem. There are two undescribed species, closely allied 
to this, found in the province of Rio Janeiro*. 
Genus Estoxa, Fairmaire. 
Fairmaire, Ann. Soe. Ent. Fr. 1859, p. 524. 
This genus is very closely allied to Esthlogena, the shape of 
the head, form and proportion of antennal joints, clothing of 
body, and general appearance offering no points of difference 
worthy of mention. The body, however, is less elongated, the 
elytra being shorter and subtrigonal. The tarsal claws in all 
the species that I have examined are fully divergent—a character 
which will at once distinguish the present genus from the pre- 
ceding. 
1. Lstola basinotata, n. sp. 
E. elongato-oblonga, postice attenuata, setosa, brunneo-fulva; tho- 
race basi utrinque maculis duabus, elytris singulis basi macula 
rotundata, nigro-velutinis ; pedibus rufescentibus. Long. 3—43 lin. 
Head thickly punctured and clothed with tawny-brown pu- 
bescence. Antenne as long as the body, fringed beneath with 
* Esthlogena obtusa. Elongata, parallelogrammica, setosa, nigro-castanea, 
griseo irrorata. Caput grosse punctatum. Antenne dense setose, 
rufo-testacez, articulis a tertio basi pallidioribus. Thorax grosse 
punctatus, niger, linea dorsali leevi et interstitiis griseo pubescentibus; 
tuberculo laterali apice unguiculato. Elytra linearia, apice obtuse 
truncata, lineatim punctata, interstitia levia, nigro-castanea, griseo 
confluenter maculata. Corpus subtus nigrum, nitidum, sparse tomen- 
tosum. Pedesrufi. Long.5 lin, Had. in Rio Janeiro (D. Squires), 
Esthlogena prolica. Elongatissima, linearis, sparsim setosa, nigra, fusco- 
griseo tomentosa. Caput sparsim punctatum. Antenne nigre. 
Thorax supra subplanus, punctis magnis paucis notatum, tuberculis 
lateralibus brevibus, latis, obtusis. Elytra apice recte truncata, an- 
gulis externis spinosis; supra sparsim punctata, postice costata. Cor- 
pus subtus et pedes nigra. Long. 6 lin. Hab. in Rio Janeiro. 
19* 
