THE CANADIAN ENTOMOLOGIST, 53 



inner margin ; inferior claw without teeth, the inner margin 

 broadly, roundly, dilated ; tibijie with two tenant hair? ; body 

 dilute black ; antennae, legs, and furcula, dirty white ; manu- 

 brium scarcely extending beyond the apex of the abdomen ; body 

 long and slender ; antenntie not longer than the head. Hab- 

 itat — Dover, Massachusetts (A. P. Morse), and Ithaca, New 



York dilatata, n. sp. 



Mucro with two teeth, the first horizontal, the second vertical, of the 

 same length as the first ; furcula not reaching the ventral tube ; 

 dentes slightly longer than the manubrium ; superior claw with- 

 out a tooth on the outer margin, and with a single tooth on the 

 inner margin ; inferior claw without teeth, and not dilated on 

 the inner margin ; body, legs, antennse, and furcula, white ; 

 manubrium not extending beyond the apex of the abdomen ; 

 antenna? of the same length as the head. Habitat — Maine and 



Massachusetts nivalis, Pack. 



25. Dentes and manubrium subequal in length ; furcula not attaining 

 the ventral tube ; superior claw without teeth on the outer 

 margin, and with a single tooth on the inner margin ; inferior 

 claw without teeth, the inner margin not dilated ; mucro with 

 three teeth, all in the same line, the first terminal, minute, 

 vertical, and forming a distinct hook ; the second and third as 

 long as the mucro is wide, and pointing cephalad ; body, 

 antennae, and legs blackish-purple ; furcula white ; antenute 

 short, hardly as long as the head, the fourth segment longer 

 than the three basal segments combined. Habitat — SaUneville, 



Ohio brevipetma, n. sp. 



Denies more than twice as long as the manubrium ; furcula attaining 

 the ventral tube ; mucro with three teeth, the first long, distinctly 

 hooked, not extending dorsad beyond the middle of the second 

 tooth ; the second long, pointed, broad at base, about as long 

 as the mucro is wide, and pointing dorsad ''; the third cephalad 

 of the second, about half as large, and extending dorso-ventrad ; 

 superior claw without teeth on the outer margin, and with a 

 single tooth on the inner margin ; inferior claw without teeth, 

 the inner margin greatly dilated ; body, legs, antenna, and 

 furcula, snuff-yellow ; antennae about twice as long as the head. 

 In determining this species great care will need to be taken, or 



