Chamherlin — North American Spiders of Gnaphosidae. 167 



Distribution.— l<i . C: Black Mt. (type loc); Va.: Great Falls; Mass.: 

 Blue Hill;N. Y.: Sea Cliff. 



Drassyllus laccus (Barrows). 

 Prosthesima lacca Barrows, Ohio Jour. Sci., 1919, 19, p. 355, pi. 15, f. 3. 



Type.— Ohio State Univ. Coll. (cT'). 

 Locality. — Ohio: Columbus. 

 Known also from topotypes ( cf , 9 ) • 



Drassyllus depressus (Emerton). 

 Prosthesima depressa Emerton, Trans. Conn. Acad., 1909, 8, p. 173, pi. 3, 



f. 8. 

 Prothesima depressa Emerton (in part), ibid., 1911, 16, p. 406, pi. 5, f. 8a 



but not f. 8, 8b, or 8c. 



Holotype.—M.C.Z.7n (9). 



Distribution. — Mass.: Medford (type loc); N. Y.; Ohio. 



Drassyllus eremitus, sp. nov. 



Female. — Coloration as in other members of the depressus group but the 

 posterior legs black, or nearly so, as in the anterior pairs. Anterior median 

 eyes only their radius or less apart. Upper margin of furrow of chelicera 

 with four teeth, or with an obscure fifth one, the lower with three. Epigy- 

 num with a transverse anterior rim; with no septal piece in median channel. 



Length, 4 mm.; cephalothorax, 1.66 mm.; tib. + pat. IV, 1.06 mm. 



Holotype.— M. C. Z. 636 ( 9 )• 



Locality. — Tenn.; Robertson Co., Glenraven. 



Drassyllus socius, sp. nov. 

 Prosthesima depressa Emerton (in part), Trans. Conn. Acad., 1911, 16, p. 

 406, pi. 5, f. 8b and 8c, but not 8 or 8a. 



Male. — Very similar in appearance and structure to depressus but tibial 

 apophysis of palpus smaller and less abruptly bent, and the median ventral 

 apophysis of bulb of an obviously different form. Upper margin of furrow 

 of chelicera with four teeth, the lower also with four instead of three. 



Length, 4 mm.; cephalothorax, 1.75 mm.; tib. + pat. IV, 1.87 mm. 



Holotype.— M. C. Z. 634 (d^). 



Locality. — Mass.: Blue Hill, Milton. 



Drassyllus rufulus (Banks). 



Prosthesima rufula Banks, Proc. Acad. Phil., 1892, p. 17, pi. I, f. 55; 



Emerton, Trans. Conn. Acad., 1909, 14, p. 217, pi. 9, f. 6. 

 Prosthesima immaculata Banks, Proc. Acad. Phil., 1892, p. 18, pi. 1, f. 58. 

 Melanophora rufula Petrunkevitch, Ann. N. Y. Acad., 1910, 19, p. 207, pi. 



21, f. 4. 



Cotypes.—U. C. Z. 712 (9). 



Distribution. — N. Y.: Ithaca (type loc). Sea Cliff, Lake Bluff; N. H.: 

 Hanover; Ohio: Rockbridge. 



