578 PROCEEDINGS OF THE ACADEMY OF [NoV. , 



uniting at dorsal gi'oove; mandibles and sternum pale yellowish; 

 legs pale, tips of patellte and tibise, and sometimes of metatarsi, 

 reddish; abdomen white, a few scattered black dots on dorsum, 

 and two larger black spots above the spinnerets. Cephalothorax of 

 usual shape; P.M.E, rather large, a little less than diameter 

 apart; the A.M. E. smaller, fully diameter apart; quadrangle of 

 M.E. forming a square. Legs of moderate length, metatarsus 

 I a little longer than tibia I. Sternum triangular, the sides 

 slightly rounded. Abdomen (when full of eggs) globular, higher 

 than long; the epigynum shows as a simple median black opening. 



Length 4 mm. 



Two females from Las Cruces (Cockerell). 



Theridium diiferens Emerton. 



Theridimn differ ens Emerton, Trans. Conn. Acad., VI, p. 9 (1882). 

 A young male from Mesilla Park, iS'ovember oO, appears to 

 belong to this species (Cockerell). 



Steatoda grandis n. sp. 



Cephalothorax and mandibles uniform dark red-brown ; legs a 

 brighter red-brown, still paler on the tarsi, tips of tibiic plainly 

 darker; sternum black; abdomen black above, with a naiTow white 

 line around base, extending back about one-third the distance to 

 tip; venter pale, with a black mark similar in shape to that of S. 

 borealis, but heavier. The posterior eye-row is straight, the 

 P.M.E. fully their diameter apart, i-ather closer to the slightly 

 larger P.S.E. ; the A. M.E. much larger than the P.M.E., about 

 one-half their diameter apart, and still closer to the much smaller 

 A.S.E. , the latter nearly touching the P.S.E. The epigynum 

 shows a nearly circular, depressed corneous lid, with a small trans- 

 verse opening behind. The legs are of moderate length, but 

 rather large and stout. 



Length 7.5 mm. 



One female from Albuquerque (Soltau). It has much resem- 

 blance to the common S. borca/is, but is larger and heavier; this is 

 particularly noticeable in the size of the legs. 



Steatoda borealis (Hentz). 



ThcridiaiH, borealis Henlz, Jour. Bost. Soc. N. H., VI, p. 274 (1850). 

 One from first Ruidoso camp, White Mountains, latter half of 

 July. 



