2o6 Memoirs on the Coleoptera 



Body narrower, more oval and more ventricose, the whitish squamules small, 

 very slender and well separated, but very evenly distributed throughout 

 above and beneath; beak in both sexes extremely slender, distinctly and 

 evenly arcuate, shining and glabrous, with scarcely visible squamules basally, 

 a third longer than the head and prothorax (c? 1 ), two-thirds ( 9 ); prothorax 

 smaller in the male, a third to two-fifths wider than long, the sides broadly 

 arcuate, subparallel, more rounding and convergent anteriorly to a very 

 short truncate tubulation, which is half as wide as the base; punctures 

 strong and subcontiguous, the surface opaque ; elytra nearly a third longer than 

 wide, more than a fourth wider than the prothorax and two and one-half 

 times as long, oval, rather narrowly rounded at apex; stria? deep, much 

 coarser than in the preceding and half to third as wide as the intervals, 

 which are strongly, closely and confusedly punctate; male with the abdomen 

 somewhat deeply impressed and subglabrous along the middle basally. 

 Length 1.8-2. 15 mm.; width 0.8-1.05 mm - Brazil (Chapada — forest). 

 November. Two specimens longulus n. sp. 



It is probable that these species frequent flowers in the forest 

 clearings. 



Anavallius n. gen. 



The general habitus of the body in this and the next genus, 

 which belong to the group, however, because of mandibular struc- 

 ture, differs entirely from that prevailing in the preceding genera, 

 the size being much larger and the surfaces polished and glabrous 

 or virtually so. The body in Anavallius is glabrous above, excepting 

 the subquadrate scutellum, which is densely clothed with white 

 squamules; on the under surface and legs each of the moderate 

 punctures bears a small and slender white squamule, rather more 

 abundant, longer and yellowish on the median part of the prester- 

 num. The beak is very thick and with coarse, longitudinal sulci 

 at the sides basally, finely punctate above and is almost similar in 

 the sexes, being merely a little more rapidly narrowed and more 

 slender beyond the antennae in the female. The mandibles are 

 dentate, non-decussate and, when closed, form an acute prominent 

 angle. The antennas are medial, long, the first two funicular 

 joints elongate, the first much the longer, and the club is small, 

 oval and abrupt. The prosternum has an oval anterior fossa and, 

 between the spines in the male, is simply longitudinally impressed 

 and loosely clothed with squamules; the coxae are somewhat 

 narrowly separated. The prothorax is briefly and but feebly tubu- 

 late at apex and the elytra are deeply grooved. The type is the 

 following: 



Anavallius ruficornis Boh. — father stout and convex, rhombic-suboval, deep 

 black and shining; beak moderately and evenly arcuate, separated from the head 

 by a feeble impression, two-thirds as long as the elytra (cf), a little shorter but 

 apically more slender and cylindric ( 9 ), the antennae pale red-brown; prothorax 

 a third (cf) to three-sevenths ( 9 ) wider than long, the sides somewhat strongly 

 converging and feebly arcuate, more rounding and converging anteriorly, the 



