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.401.] NORTH-AMERICAN INVERTEBRATES. 427 
Movable finger of $ mandibles constricted from below near apical third 
remobates californica Sim (Ariz., Cal.) 
Movable finger not constricted from below 
The movable finger near apical fourth is pelddenly —" iois abies, 
very large species . . . Eremobates cinerea Putn. (Ariz.) 
The movable finger, if carbene from above, it is much before the 
apical fourth . . ; 6 
. Only slender hairs on inner cdd of pow sid tibia of 3 p Md 
Eremobates pallipes Say (Kan., Tex., Colo., Wy.) 
Spine-like bristles on inner side of femur and tibia of ĝ palpus 7 
Upper finger stouter than usual, narrowed near tip, a small tooth near 
middle of movable finger, tips of palpi black 
remobates magna Hanc. (Tex., Ariz.) 
Upper finger slender throughout, no tooth near middle of movable 
finger ; Sas 8 
. Small conical spines on underside of tibia of 4 palpus 
Eremobates formidabilis Sim. (Cal, Ariz.) 
No such spines on tibia of $ palpus 
Eremobates putnami Bks. (Cal.) 
Lower finger of mandibles finely, but distinctly, denticulate beyond 
large teeth ; a broad dark band on middle of metatarsus of palpus 
Ammotrecha californica Bks. (Cal.) 
Lower finger not denticulate 
10 
- Upper finger with a very plain Ads above at bai tos herb are 
several small teeth followed by three large subequal teeth 
Ammotrecha peninsulana Bks. (Ariz.) 
Upper finger with less distinct ridge, below there are two large teeth, a 
small one, then a large one . . Ammotrecha cube Lucas (Fla.) 
