THK S«)T,PI (lin.K OF AMERICA PUTXAM. 261 



than the siuioundiuif parts; eyes hirue, pale foloied witli l)la<k pupils, their 

 interval "reater tlian their diameter. 



Base of the matidibles ahove about as long as the liead : moderately broad ; 

 not very convex at the sides, furnislied with numerous, rather stiff subulit 

 spines; less abundant at tlie base of tlie top tlian elsewhere, and longer near 

 the base of the finger.s; fixed finger about three-fourths the length of the 

 base, rather straight, subulate ; directed ohli(iuely dowu\vard>, and slightly 

 outward.s, witii a shallow concavity aljout the middle of the lower and inner 

 side; smootli, not carinated, unarmed; furnislied on the inside with a brush 

 of strong white subulate spines directed forwards; no tiagellum. At the 

 base with a deep canal armed witli four acute teetli on each side, the second 

 and fourth, small; the first (upper one) largest; tlie third next. Traces of 

 still smaller teetli may be seen. 3loval»le finger with a moderately large 

 acute conical tootli near tlie base followed at a short distance by two denti- 

 cles; the anterior smallest; tlien follows a sharp carina, straight on top, then 

 another carina terminating in a forward projecting tooth ; linger carinated 

 outside and furnished with a row of tine |>oints, terminating at tlie anterior 

 tooth. 



Maxillary paljius, moderately robust ; furnislied witii a number of subu- 

 late spiny hairs, with numerous tine slender hairs, rather long and inecpial. 

 Tibia, thirteen mm.; femur, thirteen mm.; tarsus, eleven mm., (no separa 

 tion between tarsus and metatarsus visible), all joints not f|uite parallel. Un- 

 derside of metatarsus IV. witli about teu spiny hairs, besides two other 

 .spines not in the row ; metatarsus, eight mm. ; tarsus five mm., long and 

 slender; tibia twelve mm.; femur, thirteen mm.; cox;e, thirteen ram.; all 

 with a few spiny hair.s on underside, and more numerous, long slender hairs. 

 Metatarsus III. with six pairs of dorsal spines: three ventral spines; tine 

 hairs between, etc. 



Abdomen, oval (mucii shrunken in these specimens). Genital opening 

 a longitudinal slit between two rounded elevations without hairs; the rest of 

 abdomen covered with fine paie hairs; a pair of spiracles on .second and third 

 segments. 



Two '., in Museum Acad. Nat. Sci., Phila. Locality unknown. [Descrip- 

 tion written Oct. 22. l«8b.| 



[The above specific name occurs with an incomplete MSS. rtescriplion of much earlier 

 dale than the oue given here.— H. O.] 



Sttmi'.sox Specimex. 



Length 22 mm.; abdomen eleven and a half mm.; thorax, two mm.; head, 

 three and a half mm.; jaws, five mm.; breadth, abdomen, five mm.; thorax, 

 two and a half mm.; head, four and a half mm. 



Cephalic shield, with the front margin regularly rounded; lateral cor- 

 ner projections moderately prominent ; lateral jiosterior margin regularly 

 curved and continuous. Siiield one-fourth wider than long, the eyes project- 

 ing very little over the front; tintly arclied; finely and sparsely haired, hairs 

 longest on front margin ; several spines in front of the eyes e.vtending for- 



