ORTHOPERUS. 125 
intermediate with the trochanters longer, and the tibie much shorter than the anterior; posterior with 
the trochanters long and fusiform, in other respects similar to the intermediate. Cove: anterior nearly 
contingent, long and narrow; intermediate moderately distant; posterior rather remote. 
This genus contains numerous species, all from Europe or North America. Ortho- 
perus may be known by its rounded form and minute size; the 9-jointed and strongly 
geniculated antenne; and by the long incurved anterior tibiee of most of its species. 
Owing to their close resemblance to vegetable seeds the Orthoperi are often overlooked 
by collectors; and this may in great measure account for their apparent rarity. The 
four species contained in the present collection are all represented by single indi- 
viduals; they are nevertheless abundantly distinct from each other, and may be 
separated thus :— 
Surface distinctly punctured. 
Tibie yellow. 2 2. 2 ee ee ee ee ee ee ee ovalis. 
Tibi pitchy black. . 2... ee ee ee ee nigricans. 
Surface smooth. 
Legs pale. 2. 2 1 ee ee ee OVENS, 
Legs black . 2... ee ee ee ee ee ee perpusillus. 
1. Orthoperus ovalis, sp. n. 
Ovalis, validissime convexus, niger, nitidus, distinctissime et regulariter punctatus, pilis brevibus sparsissime 
indutus; pronoto sat parvo, ad basin latissimo, lateribus marginatis, marginibus dilutioribus, margine 
basali sinuata, linea levi intra marginem impressa, angulis fere rectis; elytris quam caput atque pronotum 
sesqui-longioribus sat latioribus, ad media latissimis, validissime convexis, magis profunde punctatis ; 
pedibus atque antennis rufo-piceis, tarsis longioribus. Long. corp. 74; lin.=0°87 millim. 
Head very little exposed, moderate, shining ; antenns: rufo-piceous. horas small, but rather long, widest at 
the base, distinctly and regularly punctured; sides margined, the margin pale, with an impressed line 
within the basal margin ; basal margin sinuated, with the angles nearly rectangular. Scutellum very small, 
triangular. lytra rather broader and half as long again as the head and thorax, widest at the middle, 
exceedingly convex ; distinctly, regularly, and more deeply punctured than the thorax. Legs yellow, with 
the femora dusky ; tarsi rather long. Underparts black, moderately and distinctly punctured. 
Hab. Mexico, Jalapa (Hoge). One specimen. 
Differs from the following three species in its larger size, purely oval form, nigro- 
piceous colour, and rather deeply punctured elytra. 
2. Orthoperus nigricans, sp. n. 
Ovalis, convexus, nitidus, aterrimus, pilis brevibus remotis indutus, modice sed distincte punctatus; pronoto 
sat parvo, leviter marginato, margine basali vix sinuata, angulis fere rectis; elytris quam caput atque 
pronotum parum longioribus et latioribus atque magis profunde punctatis, prope media latissimis, apicibus 
rotundatis et parum dilutioribus ; pedibus atque antennis nigro-piceis, tibiis anterioribus longis incurvatis. 
Long. corp. 33; lin. =0°63 millim. 
Head small, scarcely exserted ; antenne piceous. Thoraw rather small, faintly margined ; basal margin scarcely 
sinuated, with the angles nearly rectangular. Scutellwm moderate, triangular. Hlytra rather longer and 
R* 2 
