454 Memoirs on the Coleoptera 



visibly behind the middle; prothorax large, a fourth wider than long, the 

 sides feebly converging and subevenly, moderately arcuate almost through- 

 out, rapidly converging at the extreme apex to a much more pronounced 

 tubulation than in either of the preceding, and half as wide as the base, the 

 basal lobe similarly slightly prominent and rounded; punctures as in tersus; 

 scutellum similar; elytra evenly but more broadly oval, slightly wider than 

 the prothorax and but little over one-half longer; grooves coarser, similarly 

 strongly exarate distally, the first not approaching the base so closely as 

 in veridicus; interstitial series composed of similarly minute punctules; 

 pygidium larger than in tersus, subevenly and strongly convex. Length 

 2.8 mm.; width 1.45 mm. Brazil. A single example, received from Des- 



brochers des Loges without further indication of locality relictus n. sp. 



8 — Body more or less evenly oval in outline 9 



Body rectilinearly parallel, small in size and rather slender 23 



9 — Presternum with a more or less evident angular medial projection from the 



intercoxal suture, bifurcating the canal as usual in the genus 10 



Presternum with the bifurcating prominence wholly obsolete, the bottom of the 

 canal sloping upward to the line of the intercoxal suture, the canal, however, 



of similar medially constricted shape 18 



10 — Pronotal punctures often close-set but always clearly separated 11 



Pronotal punctures extremely dense, not clearly separated 17 



11 — Punctures of the interstitial series extremely minute, as in the preceding 



section; basal thoracic lobe narrowly truncate at tip 12 



Punctures of the interstitial series much stronger, always distinct and sometimes 



notably coarse; scutellum generally somewhat free 13 



12 — Body evenly oval, strongly convex, deep black, glabrous above, excepting a 

 minute fine squamule in each puncture along the bottom of the elytral grooves; 

 beak ( 9 ) very slender, moderately and evenly arcuate, finely punctulate, 

 coarsely so basally, feebly swollen above at base and as long as the head 

 and prothorax; antennae rufo-piceous, slightly behind the middle.; prothorax 

 a fifth wider than long, the sides converging, evenly and distinctly arcuate 

 from base to the truncate apex, which is scarcely half as wide as the base; 

 punctures deep, rather coarse, close but not quite in contact laterally, not 

 quite so coarse and separated by their own diameters medially, without 

 smooth median line; scutellum minute, very free and subpentagonal; elytra 

 oval, rather obtuse at tip, only slightly wider than the prothorax and three- 

 fifths longer; grooves moderate, only a little coarser apically, gradually 

 coarser and coarsely punctate basally, the first approaching the base rather 

 closely; pygidium very small, convex; sterna coarsely punctate, the abdomen 

 more finely and sparsely; prosternal lobe deeply sinuate at tip between 

 sharp but not prominent angles, the surface broadly, shallowly impressed 

 along the middle. Length 2.35 mm.; width 0.9 mm. Brazil (Uscarizal). 



February. One specimen tenuirostris n. sp. 



Body evenly oval, convex, shining, subaeneous-black, glabrous; beak (o 71 ) moder- 

 ately thick, feebly, evenly arcuate, finely, sparsely punctate and as long as 

 the prothorax, the antennae black and medial; prothorax a fourth wider 

 than long, the sides just visibly converging and nearly straight, rounding in 

 apical third to a very feeble sinuation, the apex faintly subtubulate and 

 fully half as wide as the base; punctures coarse, deep and subcontiguous 

 laterally, only half as large and separated by more than their diameters 

 medially, without smooth median line; scutellum small, free, shining and 

 transversely oval; elytra oval, rather narrowly rounded behind, a fourth 

 longer than wide, evidently wider than the prothorax and three-fifths longer; 

 grooves moderate, coarsely exarate distally, the rather strong punctures 

 crenulating the intervals on their outer sides; pygidium moderate, semi- 



