Pomona C'oi,i,eoe Jouunal of Entomology 



751 



Phthiracarus contractilis (Perty) 

 (Figure 241) 

 'I'liis .sjxTii'.s was (IfscrilHil from dccayt'd wood in German)'. My specimens 

 were found under drift-wood on salt niarsli, Pawson Park, Conn., in August. 

 Length of my s|)eeimens is 838 niierui. to 1 mm. (measured from tip of abdomen 

 to dorsal suture). The side view is identical with P. retalticus. Differs from 

 that species as shown in figures by rounded tip of abdomen and different forms 

 of unguis as shown in the corresponding small figures. The ventral views, with 

 cephalothorax closed down are shown, while the position of the cephalothorax 

 when ojK'n is indicated by tlic dotted line. 



Figure 242. Rhizoglyphus longitarsus var. californicus u. var. 



Rhizoglyphus longitarsus var. californicus n. var. 

 (Figure 242) 

 Differs from the species as described by Banks in the following particulars: 

 The bristle at the tip of the penultimate joint is not as long as the tarsus. 

 The two spines on the hind tarsus are proximal to the middle of tliat joint. Length 

 of my specimen, a male, .7 mm. Tarsus I in my specimen is much longer and 

 thinner than that illustrated by Banks in Bulletin 13. Tarsus I also lias a curved 

 spine at the tip which is almost as large as the claw. 



Sent from Banning, C'al., where a colony was injuring the bark of an apple 

 tree. 



