WASP GENUS CERCERIS — SCULLEN 465 



Prey RECORD. — Calendrasp. (= Sphenophorus) (Strandtmann, 1945, 

 Ohio), C aequalis Gyllenhal (Latham, Long Island, N.Y.), O. cariosus 

 (Ohver) (Ivrombein, 1953, North Carolina), C. cultellatus Horn 

 (Missouri), C. maidis Chittenden (Blackman, Cartwright, 1929, 

 South Carolina), C. marinus Chittenden (Latham, Long Island, N.Y.), 

 C. parvulus GyUenhal (Rau, 1928, Missouri; Latham, Long Island, 

 N.Y.), C. pertinax (Oliver) (Latham, Long Island, N.Y.), C. placidus 

 (Say) (Rau, 1928, Missouri), O. setiger Chittenden (Latham, Long 

 Island, N.Y.), C. venatus (Say) (Blrombein, 1953, North Carolina; 

 Latham, Long Island, N.Y.), C. zeae Walsh (Rau, 1928; Latham, 

 Long Island, N.Y.). 



Plant RECORD. — Acacias,^. (Texas), -AmeZo^sis arborea (Louisiana, 

 Texas), Apocynum cannabinum var. pubescens (Kansas), Asclepias 

 sp. (Arizona, New Mexico, New York, Ohio), A. verticillata (New 

 Mexico), Baccharis sarothroides (Ai-izona), Cardiospermum halicaca- 

 bum (balloon vine, Texas), Cassia sp. (Texas), Ceanothus sp. (North 

 Carohna), Chrysothamnus sp. (Utah), cotton (Texas), Daucus carota 

 (Ohio), Desmanthus illinoensis (Texas), Erigeron elongatum (Illinois), 

 Eriogonum sp. (Arizona, California), Euphorbia marginata (Kansas), 

 horsemint (Texas), honey vine (Texas), hammock (Florida), Meli- 

 lotus alba (Kansas, New Mexico, Texas), Monarda sp. (Texas), 

 parsnip (Texas), Petalostemum sp. (Oklahoma), P. multiflorum 

 (Texas), Pluchea sp. (North Carolina), Quercus virginiana (North 

 Carolina), Rhus sp. (Kansas), Sapindus drummondii (Texas), Salix 

 sp. (Texas), Sambucus canadensis (Ohio), Solidago sp. (California, 

 Kansas, Texas), Spiraea sp. (North Carolina), Tamarix sp. (Kansas), 

 T. gallica (California), Wislizenia sp. (Ai-izona), Xanthium spinosum 

 (Illinois) . 



50b. Cerceris bicornuta fidelis Viereck and Cockerell 



Figure 72 



Cerceris fidelis Viereck and Cockerell, 1904, p. 132. — Banks, 1947, p. 15. 

 Cerceris bicornuta fidelis ScuUen, 1951, p. 1005. 



Female. — Length 20 mm. Structm-ally like C. bicornuta bicornuta 

 Guerin female except the colors are much lighter. 



Head ferruginous on the face, ocellar area black bordered with 

 fuscous, occiput and genae mottled with shades of brown. 



Thorax variable from ferruginous to dark fuscous; pronotum with 

 two separated, indistinct yellow patches; scutum variable shades of 

 brown; scutellum ferruginous; metanotum fulvous to yellow; tegulae 

 fuliginous; propodeum fulvous except the enclosm-e, which is dark 

 medially but somewhat lighter in the lateral pitted area; legs fer- 

 ruginous but with the lateral surfaces fulvous to yellow; wings fuscous. 



