Baring 4^9 



this genus in all probability, but is represented only by the female, 

 so far as now known: 



*St;ereogeraeus robustulus n. sp. — Body somewhat as in Centrinaspis 

 parens, but very much larger and stouter, convex, oval, with very 

 prominent but rounded humeral prominences, deep black in color 

 throughout the body, legs and antenna?, very evenly clothed above with 

 white and slender squamules, everywhere well separated among them- 

 selves; under surface with more oval dense white scales, more slender 

 and separated on the femora; beak in the female long, very slender 

 and nude, evenly arcuate, becoming .thick and sparsely squamulose 

 basally, except along a polished median line, the antennae inserted 

 behind the middle, the basal funicular joint elongate; prothorax a third 

 wider than long, the sides evenly arcuate, becoming parallel at base, 

 the apex distinctly subtubulate, prolonged and almost half as wide as 

 the base, the lobe abrupt, rounded and distinct; punctures rather coarse, 

 evenly very close-set, without distinct median line; scutellum nude, 

 quadrate, emarginate behind; elytra barely a fifth longer than wide, 

 broadly and obtusely parabolic, at the swollen humeri distinctly wider 

 than the prothorax, very nearly twice as long; stri« very moderate, the 

 punctures bearing each a more slender suberect squamule; intervals 

 broad, with moderate and confused, separated and rounded punctures; 

 anterior coxae rather narrowly separated. Length (9 ) 4-6 mm.; width 

 2.4 mm. Guatemala (Esquintla). 



A very distinct species, widely different from any known Centrin- 

 aspis in its very stout form and more prominent humeri; it differs 

 from tenehricosns Chmp., in its conspicuous uniform white vestiture 

 and much less dense sculpture. 



Conocentrinus n. gen. 



In this proposed new genus the body is subrhomboidal in outline, 



with large and elongate subogival elytra and comparatively small 



but broad and conical prothorax. The scales above, and especially 



beneath, are dense and uniform, generally whitish in color. The 



type may be described from the female as follows : 



*Conocentrinus tenuirostris n. sp.— Deep black throughout the body, 

 legs and antenna, the integuments rather smooth and finely sculptured; 

 upper surface with small whitish scales, very abundant and uniform but 

 distinctly separated among themselves, fine and transverse on the pro- 

 notum and in about three irregular series on the strial intervals, larger, 

 snow-white and extremely dense throughout the under surface; beak m 

 the female very long and filiform, not at all thickened basally, although 

 flatter and thinner distally, subevenly and strongly arcuate and almost 

 twice as long as the head and prothorax; antennae long, inserted at about 

 the middle, the first funicular joint very long, the second almost as long 



