110 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



beginning at the spiracles ; as long as broad, apically broadly rounded 

 obtuse, laterally very slightly convex. Spiracles dorsal, not reaching 

 lateral margin. 



This description is incomplete, as it is drawn from the figure 

 (Nassonow, 1893 a, pi. 1, figs. 4, 6). 



Triungulinid: This stage is accurately figured by Nassonow (1893 a, 

 pi. 1, figs. 8, 9). 



32. STYLOPS VICING, new species. 



Stylops childreni Packard, 1864. 



Host. — Andrena vidua Smith (det. H. L. Viereck) ; New Hamp- 

 shire, C. F. Baker, collector; Canada, C. F. Baker, collector. De- 

 scribed from five females from the Baker collection of the United 

 States National Museum. Packard's specimen was collected at Salem, 

 Massachusetts, June 18, on raspberry, by himself. The parasite was 

 just giving forth its young (pi. 4, fig. 10). 



Female. — Length of cephalothorax 1.12 mm., breadth at spiracles 

 1.13 mm., breadth at base of head 0.64 mm., distance between man- 

 dibles at base 0.17 mm. Cephalothorax light brownish with a darker 

 brown transverse band at base; as long as broad, squarely truncate 

 at apex; truncation one-fourth the breadth at the spiracles. Lateral 

 margin irregularly convex, with a prominent tuberculation at the 

 base of the mandibles. Mandibles subquadrate with a large curved 

 tooth at the inner apex, spiracles laterally prominent. 



Type.— Cut. No. 10103, U.S.N.M. 



33. STYLOPS VIERECKI, new species. 



Host. — Andrena (Trachandrena) texana profunda Viereck (det. 

 H. L. Viereck) ; Fedor, Texas, March 18, 1905; Rev. G. Birkmann, col- 

 lector. Described from three females (pi. 4, fig. 11). 



Female. — Length of cephalothorax 0.82 mm., breadth at spiracles 

 0.86 mm., breadth at base of head 0.53 mm., distance between mandi- 

 bles at base 0.12 mm. Cephalothorax light yellowish brown with a 

 dark brown band at base ; almost as long as broad, squarely truncate 

 at apex; truncation slightly more than one-third the breadth at 

 spiracles. Head slightly constricted at base of mandibles ; edge from 

 this point to spiracles almost straight. Mandibles blunt, subquadrate 

 with out-curved tooth at inner apex and small blunt tooth on outer 

 edge. Spiracles Hardly prominent laterally. 



Type.— Cat. No. 10104, U.S.N.M. 



Named in honor of Mr. H. L. Viereck, who furnished the material 

 containing many of these types. 



34. STYLOPS OKLAHOMA, new species. 



Host. — Andrena Jlavoclypeata miserabilis Cresson; Ardmore, Okla- 

 homa, March 12, 1907, on wild plum; F. C. Bishopp, collector (pi. 

 4, fig. 3). 



