Brazilian Baring 107 



Form very obese and convex, with peculiar tufted vestiture, the pronotum cari- 

 nate centrally and with loose strigose sculpture; beak rather thick, strongly 



sculptured. [Type Centrinus perdix Pasc] Ortycus 



Form more narrowly ovoidal, with normal sparse vestiture, which is generally 



sublinear on the strial intervals 4 1 



41 — Pronotum shining, with isolated punctures; beak moderate, arcuate; pro- 

 sternum flat, foveate near the anterior margin, the coxae rather well separated; 

 male apparently never having ante-coxal spines. [Type 5. semilucidus nov.] 



Saldius 

 Pronotum densely strigose; anterior coxae very moderately separated; beak 

 moderate, arcuate; presternum foveate near the anterior margin; male 

 .with or without short ante-coxal spines. [Type C. strigicollis Csy.] 



Centrinites 



42 — Beak rather thin, arcuate; body narrowly subovoidal, densely sculptured as 



a rule; presternum with or without small ante-coxal spines. [Type C. 



helvinus Csy.] Centrinopus 



43 — Anterior coxae narrowly separated; presternum with two short ante-coxal 

 spines in the male; beak thickened basally, strongly sculptured; femora 



non-spiculate. [Type Centrinus ruficornis Boh.] Anavallius 



44 — Anterior coxae narrowly separated; presternum without ante-coxal spines in 

 the male; beak thick, compressed and strongly costulate at the sides in 

 typical species; femora not spiculate beneath. [Type Baris squamipes 



Germ.] Valliopsis 



45 — Beak rather short, very thick and compressed, obtusely angulate above 

 near basal third and separated from the head by a very large and deep 

 sulcus, apparently not differing essentially in the sexes; antennal club short, 

 almost rounded; prothorax very abruptly tubulate at apex; legs simple, 

 the femora not spiculate; body oblong-suboval, the integuments glabrous. 



[Type Z. oblongus nov.] Zygozalestes 



Beak longer and more or less of the usual form in the Centrinini; femora non- 

 spiculate 46 



46 — Beak moderately elongated 47 



Beak notably long and arcuate; body unusually elongate-rhomboidal in form, 

 in great part glabrous and shining, wholly glabrous in Dimesus inornatus; 



prothorax tubulate at apex 64 



47 — Body smooth and. shining, glabrous or with very scanty vestiture, excepting 

 the scutellum in Liocentrinus; presternum but rarely bispinose in the male 



— only observed thus far in Macrorevena 48 



Body more opaque, more or less closely clothed with scales or squamules. . . . .56 

 48 — Scutellum large, quadrate, very densely albido-squamose; beak rather thick, 

 compressed, separated from the head by a very feeble impression; prothorax 

 barely at all subtubulate at apex; presternum obtusely canaliculate; anten- 

 nal club small; elytra moderately grooved. [Type L. scutellatus nov.] 



Liocentrinus 



Scutellum small or moderate, always glabrous 49 



49 — Prothorax tubulate at apex 5° 



Prothorax not at all tubulate at apex; body small in size 54 



50 — Thoracic tubulation very abrupt and sharply defined 51 



Thoracic tubulation rather gradual in formation 53 



51— Antennae subbasal in insertion, the beak normally convex throughout, 

 separated from the head by a feeble impression; presternum deeply canalicu- 

 late, the coxae well separated; scutellum flat and in close contact with the 

 elytra, the latter moderately grooved ; fourth tarsal joint and claws moderate. 



[Type Z. perpolitus nov.] Zalestes 



An ennae similarly subbasal, the beak separated by a feeble impression but, in 



