370 Memoirs on the Coleoptera 



Zyzzyva ochreotecta n. sp. — Rather broadly oblong-oval, convex, densely 

 clothed with scales, ochreous and very uniform above, completely concealing the 

 sculpture; beak (cf) scarcely longer than the prothorax, thick, distinctly arcuate, 

 compressed basally, finely, closely punctate, longitudinally furrowed and carinate 

 above; antennae obscure rufous; prothorax two-fifths wider than long, the sides 

 parallel and nearly straight in basal two-fifths, thence oblique and nearly straight 

 to the apex, which is truncate and much less than half as wide as the base; parallel 

 scales dense and directed longitudinally in great part; elytra a third longer than 

 wide, a fifth or sixth wider than the prothorax and nearly two and one-half 

 times as long, the sides parallel, broadly, circularly rounded in apical third, the 

 sutural angle not reentrant; pygidium closely but not densely clothed with slender 

 and suberect pale squamules; under surface without sexual mark, the first ventral 

 suture fine but very distinct throughout, the others coarse, the fourth not reflexed 

 at the sides. Length 4.3 mm.; width 2.0 mm. Brazil (Santarem). One specimen. 



Nothing else known at present approaches this genus closely in 

 general habitus, except the next in some features. 



Polpones n. gen. 



The body is here very elongate and convex, somewhat as in 

 Loboderinus, and the beak is reminiscent of that genus, being thick 

 in the male, with the antennae near apical third, but the resemblance 

 extends scarcely further. The beak is rather short and evenly 

 arcuate, strongly, longitudinally sculptured and not separated from 

 the head by an impression, the mandibles somewhat sharp and bifid 

 but prominent when closed. Antennae rather short but with long 

 scape, the first funicular joint longer than the next two, the second 

 slightly elongate, the seventh wider and obtrapezoidal, the shaft 

 bristling with slender white squamules, the club moderate, oval, as 

 long as the four or five preceding joints, with its basal segment 

 nearly half of the mass. Prosternum even, very densely squamose 

 as in the preceding, finely constricted at apex and rather narrowly 

 separating the coxae, the posterior lobe not broad, feebly sinuate at 

 tip and not extending quite to the tangent line of the middle coxae, 

 which are separated by less than their own width. Legs moderate, 

 simple, the tibiae fluted and with small spur. Prothorax not 

 tubuliferous, the basal lobe very small, short and feeble, but shal- 

 lowly sinuate at tip, the scutellum small, subquadrate, free and 

 densely squamose, and the elytral striae sharply impressed, nude 

 and feebly punctulate, forming narrower partings of the vestiture 

 than in the preceding genus. The pygidium is densely punctured 

 and squamose, oblique, wider than long and evenly rounded. The 

 type is the following: 



Polpones tectus n. sp. — Elongate-oval, convex, the integuments entirely con- 

 cealed but black throughout, clothed very densely and uniformly above with 

 large pale brownish-yellow scales, as large, even denser and whitish-yellow 

 beneath, longitudinal on the pronotum, oblique basally; beak (cf) subcylindric, 



