446 



FBOCEEDJNOS OF THE NATIONAL MUSEUM. 



VOL. 54. 



Illustrations are presented of the female cephalothorax and the 

 right mandible. 



21. STYLOPS BISALICIDIS. new species. 



Described from one female extracted from an Andrena hisalicis 

 Viereck (determined by Viereck) from Alabama collected by C. F. 

 Baker, No. 2223. 



Female. — Cephalothorax reddish brown with darker basal band; 

 broad at base, narrowed at apex ; mandibles subqiiadrate, with single 

 apical tooth ; spiracles lateral, but not prominent. Length of cephalo- 

 thorax, 0.9 mm. ; breadth, 0.9 mm. 



Type.— Cat. No. 21441, U.S.N.M. 



22. STVLOPS SPARSIPILOSAE Pierce. 



Table of measurements of female. 



Group 7. 



23. STYLOPS ERIGENIAE, new species. 



Described from two females from a female Andreim erigeniae 

 Robertson, collected on Erythroiiium ameHcanum at Plummers Is- 

 land, Maryland, March 29, 1915, by J. C. Crawford; the type in the 

 collection of the United States National Museum and the paratype in 

 the collection of the author. Another paratype specimen in the 

 museum collection was taken from an Andrena engeniae collected 

 at Carlinville, Illinois, April 1, by Charles Robertson. 



Female. — Cephalothorax yellowish brown, with broad basal dark 

 reddish brown band. Length of cephalothorax of type 0.8 mm. ; 

 breadth, 1 mm. Mandibles with one sharp curved tooth. Cephalo- 

 thorax broadest behind spiracles which are laterally prominent. 



