252 



ENtOMOLOGlCAL NEWS. 



[Oct., '05 



der spines, each spine consisting of a basal part, truncate at 

 tip and a long terminal bristle arising beneath a short spur or 

 apophysis. 



Type C. cavicolus. 



Gyptobnnns cavicolus n. sp. 



Pale whitish hyaline, eye-spots black. Body but little longer than broad 

 behind, sides slightly concave, anterior margin not one-half as long as 

 posterior margin, surface uniformly, finely granulate ; basal joint of man- 

 dibles rather long, porrect ; the second joint has near base, as seen from 

 above, a short spine on each side, fingers apparently simple. Palpi longer 

 than body, very large and broad ; the tibia and tarsus depressed, a rather 

 slender tarsal claw ; tarsus with four long spines on each side ; tibia has 



Fig. I. — Body and mandibles 

 Cyptobunus. 



Fig. 2. —Cyptobunus. Tibia and tarsus of palpus and claw of leg. 



three long spines on inner side, and one short one, on the outer side three 

 short and two long ones alternating ; the patella has on inner side a long 

 spine; femur above with two on outer side toward tip, two on lower inner 

 side toward tip, several short ones above, and below in a row are three 

 large, long spines, a small one, another large one, and then two small 

 ones near tip. Legs slender, granulate, with many fine hairs, most 

 numerous toward tip ; femur one about as long as body is broad, with 

 three long spines near base on lower side, one such on the trochanter, 

 and two on coxa one; femur two plainly longer than body, tibia two about 

 three and one-half times as long as the patella, and metatarsus two as 

 long as the tibia ; in very strong lights the tarsi show traces of further 

 division, but it is not definite. Length 1.6 mm. 



One specimen from a cave near Limespur, Montana. The 

 general appearance of this specimen at once places it in the 

 suborder Mecosiethi, but it differs from all other species known 

 in having a simple single claw to tarsi three and four. An 



