146 Journal New York Entomological Society. [Voi. xvii. 



no hairs visible ; legs slender, with very short hairs, except on the apical 

 joints. 



Length 3.2 mm. 



From Santa Marta, Colombia (Baker). 



2. Chelifer approximatus, new species. 



Cephalothorax and palpi dark yellow-brown, legs paler, dorsal scutse 

 brown. Cephalothorax with numerous small conical tubercles, elsewhere 

 finely granulate. Dorsal scutse long and narrow, approximate on inner edges, 

 granulate, and with six or eight very short clavate hairs behind, and a few 

 on the disc. Palpi very long and slender; the trochanter with short stiff 

 hairs, a scabrous swelling behind with two tips ; femur one and a half times 

 as long as the cephalothorax, gradually enlarging from the base to tip, densely 

 granulate, and with many short, clavate hairs ; tibia nearly as long as the 

 femur, slightly broader near tip, inner side straight, outer side concave at 

 base, then convex toward the tip, the short hairs nearly simple ; claw longer 

 than femur, very slender, the hand rather broadest near base, but the sides 

 nearly parallel, about one and a half times as broad as tibia, nearly as long 

 as the cephalothorax, with a few simple hairs ; fingers slender, curved, scarcely 

 as long as hand, with few long hairs, and many shorter, simple ones. 



Length J* 2.5 mm. ; J 4 irini- 



From Pescadero, and El Taste, Lower California. 



3. Atemnus gracilis, new species. 



Cephalothorax pale yellowish brown, palpi reddish brown, abdomen and 

 legs pale yellowish. Cephalothorax one and two thirds times as long as broad, 

 broadest behind, rounded in front, an eye-spot each side, behind near tip is 

 a transverse line, surface smooth, a few simple hairs. Basal part of mandibles 

 rather larger, stylet forked nearly to the base. Palpi rather large ; trochanter 

 with a small swelling behind toward the tip : femur only a little longer than 

 width of the cephalothorax, distinctly pedicellate, broadest near base, inner 

 side toward tip concave ; tibia as long as femur, convex on both sides, once 

 and a half as broad as femur ; claw very large, rather longer than the cephalo- 

 thorax, hand very broad at base, more than once and a half as broad as tibia ; 

 fingers about as long as hand, large and curved ; all joints with rather long 

 simple hairs ; abdomen fully three times as long as broad, narrowed at base, 

 tip with several long simple hairs. 



Length 2 mm. 



From Sonora, Mexico. 



4. Chelanops obesus, new species. 



Cephalothorax and palpi dark red-brown, the latter the darker ; dorsal 

 scut^ dark brown ; legs pale reddish brown, paler at tips. Cephalothorax 

 nearly smooth, but very finely granulate, with a few scattered very shoit 

 clavate hairs. Palpi very heavy ; the trochanter globose above behind ; the 

 femur about as long as the width of the cephalothorax, sides subparallel, 



