640 SEERICOE]NIA„ 



middle extending downwards, and a large common subtriangular patch below the scutellum infuscate or 

 piceous, the eyes black, the antennae and legs testaceous. Head rugulosely punctured, the eyes large and 

 prominent in the male, smaller in the female ; antennae slender, moderately long, the joints 4-10 each 

 with a comparatively short ramus in the male and feebly serrate in the female, joint 3 slightly shorter 

 than 4. Prothorax short, convex in front, sharply margined at the sides and apex, the sides rounded 

 and rapidly converging from a little before the base to the apex, the hind angles acute ; the base 

 trisinuate, feebly denticulate, and with a short projecting tooth in the centre ; the surface thickly 

 granulate-punctate. Scutellum rugulosely punctured, with a deep notch in the centre in front. Elytra 

 rather short, sharply margined and distinctly rounded at the sides, widest at the middle and there a good 

 deal wider than the prothorax, the apices sharp, the humeri rounded ; punctate-striate to near the apex, 

 the interstices thickly punctured. Fifth ventral segment feebly emarginate in the male. Tarsal claws 

 rectangularly dilated in both sexes. 

 Length 3^-3f , breadth l|-lf millim. ( <$ $ .) 



Eab. British Honduras, R. Hondo (Blancaneaux) ; Nicaragua, Chontales {Janson). 



One male and five females from the Rio Hondo and a female from Chontales. This 

 small species somewhat resembles P. deleta, but it is smaller, shorter, and more convex ; 

 the scutellum is deeply notched in front ; the elytra usually have rather definite markings, 

 and the tarsal claws are similarly formed in both sexes. The elytra in fully-coloured 

 examples appear to have an oblique yellowish stripe extending from the shoulders 

 downwards. P. trinotata, Lacord. (Gen. Col., Atlas, t. 43. fig. 2), from Brazil, is very 

 like P. suhmaculata in size and colour, but is figured with an unemarginate scutellum. 



22. Ptilodactyla rufotestacea. 



8 . Oblong-elliptic, rather broad, flattened above, shining, thickly pubescent, rufo-testaceous, the eyes black, 

 the antennae and legs testaceous. Head closely punctured, the eyes large ; antennae very elongate, 

 slender, the joints 4-10 each with a long ramus, the rami much longer than the joints themselves. 

 Prothorax short, broad, greatly narrowed and moderately convex in front, sharply margined at the sides 

 and apex, and slightly explanate at the sides behind, the sides feebly rounded and rapidly converging 

 from the base, the hind angles sharp ; the base trisinuate, obsoletely denticulate ; the surface thickly 

 punctate. Scutellum rugulosely punctured, notched in the centre in front. Elytra rather elongate, 

 wider than the prothorax, the sides a little rounded and broadly margined, the apices sharply produced, 

 the humeri rounded ; obsoletely punctate-striate to near the apex, the interstices closely and rugulosely 

 punctured. Fifth ventral segment somewhat broadly depressed along the middle and deeply emarginate at 

 the apex. Tarsal claws rectangularly dilated. 



Length 6-|, breadth 3 T l T millim. 



Hah. Guatemala, San Geronimo (Champion). 



One example. This insect is not unlike P. jpallescens ; but it has a much broader 

 thorax and acuminate elytra, the antennal rami are much more elongate, and the 

 tarsal claws are differently formed, the last-mentioned character bringing it near 

 P. tabascoana, &c. 



23. Ptilodactyla tabascoana. 



Elliptic, flattened above, shining, thickly clothed with rather long yellowish-cinereous pubescence ; fusco- 

 ferruginous, the antennae and legs testaceous. Head rugulosely punctured, the eyes large ; antennae long 

 and slender, the joints 4-10 each with a moderately long ramus in the male and serrate in the female. 



