454 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 54. 



42. STYLOPS DIABOLA, new species. 



Described from one female extracted from an Andrena bisalicis 

 Viereck, var. (determined by Viereck) from Devils Lake, North 

 Dakota, collected May 15, 1916, on Amelanchier. 



Female. — Cephalothorax yellow with a very dark brown basal 

 band; spiracles very prominent; mandibles rounded, with subapical 

 tooth on inner margin and an angle on outer margin. Length, 1 mm. ; 

 breadth, 1 mm. 



Table of mensure^nents of female. 



Type.— Csit. No. 21447, U.S.N.M. 



Group 16. 



43. STYLOPS HARTFORDENSIS Pierce. 



Table of measurements of female. 



Specimen . 



Type, Thomasville, Georgia 



Relative lengtii compared to \vldth at spiracles. 



Index 

 total. 



4.67 



44. STYLOPS NEONANAE, new species. 



Described from one female extracted from a specimen of Aiuire/ia 

 neonana Viereck, paratype, collected in Georgia, and the property 

 of the Philadelphia Entomological Society. 



Female. — Cephalothorax, yellowish brown with dark-brown basal 

 band; broad, rounded; spiracles prominent; mandibles with apical 

 tooth and with lateral angle almost a tooth. Length of cephalo- 

 thorax, 0.7 mm. ; breadth, 0.7 mm. 



Table of measurements of female. 



Specimen. 



Type, Georgia 



Relative length compared to breadth at spiracles 



Index 

 total. 



4.40 



Type. — In the Philadelphia Academy of Sciences. 

 Katastylops, new subgenus. 



I have separated off this subgenus because of the great difference 

 between its type, Stylops polem'Onii Pierce, and the other species of 



