NO. 2242. MORPHOLOGY OF THE STREPSIPTEBA— PIERCE. 



451 



Female. — Cephalothorax yellowish brown; with broad basal red- 

 dish brown band. Length of cephalothorax, 0.7 mm.; breadth, 0.7 

 mm. Mandibles subquadrate, rounded, with small outward pointing 

 tooth at apex. Spiracles laterally prominent. Lateral margin 

 strongly sinuous, with two constrictions between spiracles and base 

 of head, which is also constricted and suddenly enlarged just beyond, 

 then again strongly narrowed some distance behind the base of the 

 mandibles. 



Table of measurements of female. 



Type.— C^t. No. 21445, U.S.N.M. 



34. STYLOPS GRANDIOR. new species. 



Described from two females extracted from a specimen of 

 Andrena grandior muUiplicatiformis Viereck, determined by Viereck, 

 collected June 21, 1904, at Big Fork, Montana. 



Female. — Cephalothorax yellowish brown with dark-brown basal 

 band; very broad at base, strongly narrowed toward apex; sides sub- 

 parallel for short distance behind spiracles and then strongly con- 

 stricted: spiracles very prominent laterally; mandibles subquadrate 

 with apical tooth pointed outward. Length of cephalothorax, 0.9; 

 breadth, 1 mm. 



Table of measurements. 



Type.— CM. No. 21446, U.S.N.M. 



