146 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



ulate and arising before the apex of the preceding. Antennae with 

 last two joints dilated in the middle and tapering somewhat to the 

 tip. 



i. HOMILOPS WESTWOODII Templeton (1838). 



Xenos westwoodii Templeton, 1838. 

 Paraxenos westwoodii Saunders, 1872. 

 Homilops westwoodi Pierce, 1908. 



Host. — Proterosphex (Sphex) ichneumoneus aurijiuus Perty, Rio Jan- 

 eiro, Brazil (pi. 10, figs. 9, 10). 



Male. — Head small, carrying anteriorly two cupped tubercles, 

 which bear the stout antenna?. The first antennal joint is short, 

 subcylindric, slightly contracted near the base, dilating toward the 

 apex, and internally extended; second joint minute, a little longer 

 than broad, constricted in middle, cupped beneath for third joint; 

 first two joints covered with short rigid hairs and not sensitive; 

 third joint short, cupped for fourth, internally produced, in an 

 elongate, flat process, rounded at tip, and dilated at the middle; 

 fourth joint also produced, exceeding production of third by one- 

 fourth, and dilated at the middle. Margin of pharyngeal opening 

 slightly corrugated; mandibles elongate, narrow, slightly arched; 

 palpi triarticulate ; first joint minute; second large, tumid, and a 

 little curved backwards; apical small, cylindric, and densely covered 

 with minute hairs. 



2. HOMILOPS BISHOPPI, new species. 



Host. — Proterosphex (SpJiex) ichneumoneus Linnaeus; Waco, Texas, 

 August 29, 1906; F. C. Bishopp, collector (pi. 11, fig. 6). 



Female. — Length of cephalothorax 1.71-2.09 mm., breadth at 

 spiracles 1.86-2.39 mm., breadth of head 1.52-1.82 mm., distance 

 between mandibles 0.27 mm. Cephalothorax brown, lighter on 

 posterior half of disk; broader than long, margins convex oblique, 

 wavy at sides of head; spiracles dorsal; mandibles broad subquad- 

 rate with large tooth on inner apical angle. 



Type.— Cat. No. 10127, U.S.N.M. 



Named in honor of F. C. Bishopp, its collector. 



3. HOMILOPS ASHMEADI, new species. 



Host. — Proterosphex (Sphex) pernanus (?) Kohl; Santo Domingo; 

 from the collection of the U. S. National Museum (pi. 11, fig. 8). 



Female. — Length of cephalothorax 1.85 mm., breadth at spiracles 

 2.01 mm., breadth of head 1.63 mm., distance between mandibles 

 0.32 mm. Cephalothorax brown, lighter on posterior half; regu- 

 larly convex from base to apex, apex squarely but narrowly truncate; 

 spiracles dorsal; mandibles oblique, apically emarginate, angles acute. 



