660 SER1UCOEN1A. 



Six examples. Easily separable from L. monticola by its broader and more oval 

 shape and the very small scutellum. This insect closely resembles Ptilodactyla 

 mexicana, but may be easily known from it by the very small, anteriorly denticulate 

 scutellum, as well as by the form of the maxillary palpi. 



STIROPHORA. 



Apical joint of the maxillary palpi ovate, slender, short. Mesosternum with a long and exceedingly prominent 

 keel, the anterior portion of which is received hetween the strongly exserted front coxae. Legs long and 

 slender ; the tibiae with long spurs ; hind tarsi with the basal joint very elongate, longer than the following 

 joints united, joint 3 with a broad lobe, 4 scarcely visible ; the claws with a rectangular tooth. The other 

 characters as in Ptilodactyla. 



The very prominent mesosternal keel distinguishes this genus from all the other 

 Ptilodactylini. The only example received is of the female sex, and in a very bad 

 state of preservation. The male probably has articulated rami to the antennae. 



1. Stirophora sulcipennis. 



Elliptic, moderately convex, rather shining, thickly pubescent, rufo-piceous, the antennae and tarsi testaceous ; 

 the upper surface closely, very finely punctate, the under surface very finely rugulose, the metasternum 

 with minute scattered punctures. Head broad, the eyes prominent, moderately large; antennae elongate, 

 slender, joint 3 very long, longer than 4, 4-6 equal in length (the others broken off). Prothorax much 

 broader than long, acutely margined at the sides, the latter explanate behind and rapidly converging from 

 a little before the base to the apex, the hind angles rather obtuse, the disc depressed in the middle before 

 the base ; the base trisinuate, smooth. Scutellum transversely cordate, with a very shallow notch in the 

 centre in front. Elytra moderately elongate, much wider than the prothorax, sharply margined at the 

 sides, depressed on the disc below the base, the apices a little produced, the humeri rounded ; sulcate, the 

 sulci each with an almost obsolete row of punctures, the interstices convex throughout, and less closely 

 and more rugulosely punctured than the prothorax. 



Length 6|, breadth 3 millim. ( $ .) 



Hab. Nicaragua, Chontales {Belt). 



CELETODACTYLA. 



Apical joint of the maxillary palpi ovate, small, not longer than the third, the second and third joints 

 triangular and subequal. Head broad, vertical ; the epistoma separated from the front by a very deep 

 groove, the front slightly prominent on either side above the point of insertion of the antennae ; the eyes 

 prominent, small. Antennae ( $ ) elongate, the joints from the third flattened, strongly serrate, and 

 greatly dilated, the outer ones becoming gradually narrower. Mesosternum feebly carinate down the 

 middle between the coxae. Legs elongate, slender, the tibiae with long spurs ; the middle and hind tarsi 

 with the basal joint slender and very elongate, that of the hind tarsi longer than the other joints united, 

 the basal joint of the anterior tarsi moderately elongate, the third joint with a broad lobe, the fourth joint 

 extremely small, the claw-joint long and very slender ; the claws with a broad acute tooth. The other 

 characters as in Ptilodactyla. 



The single species referred to this genus has a very different facies from that of any 

 of the other Central-American Dascillidse. The comparatively small and prominent 

 eyes, the slender, very elongate basal joint of the middle and hind tarsi, the greatly 

 dilated, flattened, strongly serrate, tapering antennae, &c, separate it at once from 

 Ptilodactyla. The insect resembles a Lycid and varies a good deal in the colour of the 



