195 



ScutcUutn very small, rounded. 



Elytra rather narrow, very convex, almost one-half longer but scarcely broader than 



the head and thorax, widest near the middle, regularly and rather deeply 



punctured, with the interstices smooth and shining, slightly attenuated 



posteriorly, sides margined. 

 Abdomen with the pygidium exposed. 

 Legs long, j'ellow. 

 Under parts pale castaneous. 

 Differs from all other species in its very minute size, perfectly ovate and exceedingly 



convex form, and general sculpture. 

 Habitat, Europe, not common. This species was first found by Mr. G. E. Crotch 



near Cambridge, and has subsequently been taken in other localities. 



Orthoperus perpusillus. 



0. perpusillus, Matthews, Biol. Cent.-Amer. Col. ii. pt. i. p. 124, 1888. 



L. c. Ys I'll- = 0"50 mm. — Ovatus, validissime convexus, nitidus, aterrimus, 

 fere impunctatus ; pronoto modico, sat lato, ad basim latissimo, margine basali 

 leviter sinuata, augulis fere reetis ; eli/tris capite atque pronoto parum longioribus, 

 hand latioribus, ad humeros latissimis, vix evidenter ,punctatis, apice obtuso ; 

 pedibus nigris ; antenuis piceis. 



Head scarcely exserted, antenufe piceous. 



Thorax moderate, rather broad, widest at the base, basal margin slightly sinuated, 



with the angles nearly right angles. 

 Scutellum very small, triangular. 

 Elytra rather longer, but not broader than the head and thorax, widest at the 



shoulders, scarcely visibly punctured, apex obtuse. 

 Legs moderate, black. 

 Under parts black. 

 Differs from 0. ovatus in its minute size, broader and less attenuated form, almost 



impunctate surface, and black legs. 

 Habitat, America ; Chontales, Nicaragua, one specimen taken by Mr. Janson. 



Abounds in the West Indian Islands, where it was taken in profusion by Mr. 



H. H. Smith. 



This minute species may be distinguished from 0. glaher, Le Conte, by the 

 totally different shape of its thorax and elytra, and by its deep black colour. 



Orthoperus Crotchii, sp. n. 



L. c. 1% lin. = 0"50 mm. — Brevis, latus, rotundatus, nitidissimus, minute et 

 remote punctatus, castaneus ; capite magno, lato, oculis parvis, baud prominentibus; 

 pronoto magno, capite longiori et latiori, pone medium latissimo, minute et remote 

 punctato, fere glabro, nitidissimo, lateribus ante basim leviter contractis, leviter 

 marginatis, margine basali fortiter sinuata, angulis obtusis ; elytris capite atque 

 pronoto parum latioribus, plus quam sesqui longioribus, ante media latissimis, 

 minutissime et remote punctatis, interstitiis iudistincte alutaceis et nitidissimis, 

 stria suturali distinctii, lateribus marginatis et rotundatis, apicibus obtusis ; pedibus 

 flavis, tibiis obscurioribus ; antetmis flavis, clavis obscurioribus. 



Body short, broad, and rounded, very shining, castaneous, minutely and remotely 



punctured. 

 Head large and broad ; eyes small, not prominent ; antenna3 moderate, j'ellow, with 



the club dusky. 



