WASP GENUS CERCERIS — SCULLEN 513 



hair lobes very broad extending from the lateral denticles to the eyes, 

 noticeably amber in color; clypeal surface slightly convex; mandibles 

 without denticles; antennae normal in form. 



Thorax black except for band on the pronotum, the scutellum, 

 the metanotum, patches on the propodeum, spots on the pleuron, and 

 the tegulae, all of which are yellow; tegulae smooth and very slightly 

 elevated; enclosure smooth and shiny except for a faint medial 

 groove and pits along the lateral margins; mesosternal tubercles 

 absent; legs black basally, becoming yellow in part on the femora 

 and mostly yellow beyond; wings subhyaUne clouded with amber. 



Abdomen with a yellow band on tergum 1 ; tergum 2 black or with 

 a narrow yellow band anteriorly; tergum 3 yellow; terga 4, 5, and 6 

 with yellow bands infused with amber and black; venter black to 

 dark amber with yellow spots appearing on sternites 3 and 4; pygidium 

 semioval with the apical end truncate. 



Both sexes show considerable variation in the extent of the yellow 

 markings and the darker background color may be medium amber. 

 The female of C. tolteca Saussure is very distinct even when compared 

 with others, which run close to it in the keys. The clypeal process 

 is very different from that of any other species near its size. The 

 general color pattern of the male, the broad amber hair lobes, and 

 the more oval pygidium easily distinguish that sex. 



Types. — The lectotype female of tolteca Saussm'e, designated by 

 the writer and from near Cuernavaca, Mexico, is at the Museum 

 d'Histoire Naturelle, Vienna. The original type, also from Cuer- 

 navaca, Mexico, has not been found. 



The holotype male of C. cosmiocephala Cameron, from San Marcos, 

 Nicaragua (C. F. Baker), is at the British Museum, no. 21.1,737. 



Distribution. — Through the Southern States, from Arizona to 

 Florida, north to Oklahoma and Arkansas, and south into Central 

 America. Specimens are as follows: 



Arizona: 9, Amado, July 23, 1957 (G. D. Butler); 3? 9, 2d'd', Canelo, 

 July 3, 1956 (G. D. Butler); d", Nogales, Aug. 3, 1927 (J. C. Bradley); cf, Pata- 

 gonia, Santa Cruz Co., Aug. 25, 1955 (F. G. Werner, G. D. Butler) ; cf, Portal, 

 Aug. 10, 1959 (H. E. Evans) ; 9 , Sonoita, Santa Cruz Co., Sept. 6, 1957 (T. R. 

 Haig). Arkansas: &, Jefferson Co., July 8, 1954 (L. D. Warren); 9, Lincoln 

 Co., July 2, 1953; c^, Polk Co., Aug. 21, 1928 (L. D. Beamer). Florida: 9, 

 Cocoa, July 1 (G. E. Bohart) ; c?, Gainesville, July 8, 1955 (R. A. Morse) ; 2cf d", 

 Haines City, Sept. 17, 1954 (H. V. Weems, Jr.); d', Levy Co., July 19, 1958 

 (H. V. Weems, Jr.). Louisiana: 9 , cf , Cameron, June 6-14, 1905; cf, Keatchie, 

 June 14, 1905; 2crcf, Opelousas (G. P. Pilate); 2d'cf, Orange, Aug. 23, 1907 

 (F. C. Bishopp); c?, Winnfield, July 21. Oklahoma: cf, Great Salt Plains, 

 Alfalfa Co., July 24, 1953 (Evans and others). Texas: cf , Brownsville, June 25, 

 1930 (J. O. Martin); d", Brazos Co., June 20, 1937 (J. E. Gillaspy) ; 9, 2cr&, 

 Calvert, June 22, 1904 (F. C. Bishopp) ; 4 c? cf, Fedor, Lee Co., June 17-29, 1909; 

 2cf cT, Lee Co. (Birkmann) ; cf, McDade, Bastrope Co., June 27, 1934 (J. E. 



