WASP GENUS CERCERIS — SCULLEN 489 



pronotum, tegulae low, smooth, and with a trace of amber; enclosm-e 

 with a medial groove and pitted except for the central thii-d at the 

 base; mesosternal tubercles absent; legs black to dark amber with 

 traces of yellow basally to or near the apical ends of the femora; 

 tibiae yellow with dark areas; tarsi largely yellow; wings subhyaline. 



Abdomen with tergum 1 black, terga 2 to 5 with wedge-shaped 

 lateral yellow patches narrowing to the medial line but not quite 

 meeting, tergum 6 with widely separated patches; venter black with 

 variable traces of yellow laterally; prominent and heavy clusters of 

 brownish bristles laterally on each sternite; pj^gidium with sides 

 almost straight but converging shghtly apically, with the apical end 

 truncate, clothed with short, scattered bristles. 



The male of C. mimica Cresson closely resembles the male of C. 

 bicornuta Guerin, The bristles on the venter of the former and the 

 S-shaped first hindtarsal segment of the latter species easilj^ separates 

 them. The male of C. mimica Cresson also closely resembles the 

 male of C. verticalis F, Smith, from which the former can be separated 

 by the form of the pygidium and the lack of bristles on the venter of 

 the latter. 



Types. — The type female of C. mimica Cresson, from Texas, is at the 

 Philadelphia Academy of Natural Sciences, no. 1943. The lectotype 

 female of C. esau Schletterer, from Mexico, is at the Naturhistorisches 

 Museum, Vienna. The type male of C. englehardti Banks, from St. 

 John, Ariz., July 27, 1931 (G. P. Engiehardt), is at the Museum of 

 Comparative Zoology, Harvard, no. 27638. 



Distribution. — C. mimica Cresson has been taken through the 

 Southern States from Arizona to Florida. It is recorded as far north 

 as Kansas and is also common in Mexico. 



Prey record. — None. 



Plant record. — Asclepias sp. (New Mexico, Arizona), Asclepias 

 subverticillata (Arizona, New Mexico), Baccharis sp. (Texas), B. 

 glutinosa (Arizona), Condalia obtusii'olia (Texas), Eriogonum sp. 

 (Arizona), parsnip (Texas), Solidago sp. (Kansas). 



61. Cerceris morata Cresson 



Figures 87, 167a,b,c 



Cerceris morata Cresson, 1872, p. 230; 1887, p. 282.— Schletterer, 1887, p. 497.— 

 DaUa Torre, 1897, p. 468.— Ashmead, 1899, p. 295.— Banks, 1912a, p. 19.— 

 Scullen, 1942, p. 188; 1951, p. 1009. 



Cerceris nasica Viereck and Cockerell, 1904, p. 132. — Viereck, 1906b, pp. 233, 

 239.— Banks, 1947, p. 20.— Scullen, 1942, p. 188. 



Female. — Length 14 mm. Black, yellow, and ferruginous; punc- 

 tation and pubescence average. 



