PTILODACTYLA. 655 



51. Ptilodactyla forticornis. 



<S . Moderately elongate, narrow, rather convex, shining, thickly clothed with coarse hrownish pubescence ; 

 pitchy-black, the prothorax reddish-brown beneath, the antennae piceous, the rami paler, the legs and 

 palpi testaceous, the tibiae darker. Head densely punctured, the eyes moderately large ; antennae mode- 

 rately elongate, stout, the joints 4-10 each with a stout ramus, the outer rami very little longer than the 

 joints themselves, joint 3 stout, triangular, slightly shorter than 4. Prothorax broader than long, convex 

 in front, sharply margined at the sides and apex, the sides parallel behind and arcuately converging in 

 front, the hind angles acute ; the base trisinuate, finely denticulate, and with a short projecting tooth in 

 the centre ; the surface closely and somewhat coarsely granulate-punctate. Scutellum sparsely punctured, 

 deeply notched in the centre in front. Elytra elongate, distinctly wider than the prothorax, parallel in 

 their basal half, and conjointly rounded at the apex, the humeri rounded; thickly, finely punctate, and 

 obsoletely striate. Fifth ventral segment emarginate at the apex. Legs stout. Tarsal claws with an 

 acute curved tooth. 



Length 4|, breadth nearly 2 millim. 



Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 



One example. A small, narrow, elongate species, with unusually stout legs and 

 antennae and coarse pubescence. The antennal rami are very stout and comparatively 

 short. The form of the antennae and claws distinguishes it at once from P. gracilis, Sec. 



52. Ptilodactyla pallescens. 



Oval, depressed, shining, thickly pubescent, testaceous. Head rugulosely punctured, the eyes large ; antennae 

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

 female, 3 a little shorter than 4 in the male. Prothorax short, feebly convex and greatly narrowed in 

 front, sharply margined at the sides and apex, and explanate at the sides behind, the sides rounded and 

 rapidly converging almost from the base, the hind angles sharp ; the base trisinuate, smooth ; the surface 

 thickly punctate. Scutellum rugulosely punctured, with a shallow notch in the centre in front. Elytra 

 moderately long, forming almost a continuous outline with the prothorax, and at the middle very much 

 wider than it, rounded and broadly margined at the sides ; obsoletely punctate-striate to near the apex, the 

 interstices thick] y, rugulosely punctate. Tarsal claws with an acute curved tooth in the male and 

 rectangularly dilated in the female. 



Length 5|-5f , breadth 2£-2% millim. (<*$.) 



Hab. Costa Rica, Volcan de Irazu 6000 feet (Bogers). 



One pair. This species somewhat resembles P. deleta, but it is much larger, more 

 depressed, and oval in shape, and the sides of the thorax are explanate behind. 



53. Ptilodactyla parallela. 



Oblong, narrow ( S ), broader ( $ ), flattened above, shining, thickly clothed with short, fine brownish pubes- 

 cence ; piceous, the hind angles of the prothorax and the suture and epipleurae of the elytra obscure 

 ferruginous, the antennae testaceous or obscure testaceous, the legs piceous or brown, the tarsi testaceous. 

 Head rugulosely punctured, the eyes large, prominent in the male ; antennae slender, elongate, the joints 

 4-10 each with a rather long ramus in the male and serrate in the female. Prothorax short, feebly 

 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 sharp ; the base trisinuate, smooth ; the surface 

 thickly, finely punctate. Scutellum closely punctured, feebly notched in the centre in front. Elytra 

 moderately long, parallel in their basal half, sharply margined at the sides, wider than the prothorax 

 and slightly produced at the apex, the humeri rounded ; obsoletely seriate-punctate to near the apex 

 the interstices flat and thickly, minutely punctate. Eifth ventral segment feebly arcuate-emarginate at 

 the apex in the male. Tarsal claws with an acute curved tooth in the male and rectangularly dilated in 

 the female. 



Length 5f-6f , breadth 2 T \-2± millim. ( <J $ .) 



