392 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lie 



22a. Cerceris rufinoda rufinoda Cresson 



Figures 27; 125a,b,c 



Cerceris rufinoda Cresson, 1865, p. 121. — Packard, 1866, p. 61. — Cresson, 1887, 

 p. 286.— Schlotterer, 1887, p. 491.— Robertson, 1889b, p. 303.— Ashmead, 

 1890, p. 32.— Bridwell, 1898, p. 209.— Ashmead, 1899, p. 295.— Viereck and 

 Cockerell, 1904, p. 138.— Smith, H. S., 1908, p. 370.— Banks, 1912a, p. 26.— 

 Stevens, 1917, p. 422.— Mickel, 1917b, p. 452.— Strandtmann, 1945, 

 p. 311.— Scullen, 1951, p. 1010. 



Female. — Length 9 to 10 mm. Black and reddish amber with 

 light yellow markings; deeply and closely pitted; clothed with very 

 short silvery hairs. 



Head slightly wider than the thorax; black except for two large 

 frontal eye patches, round spots back of the compound eyes, base of 

 mandibles and small patch on scape, all of which are light yellow; 

 medial lobe of the clypeal border divided into an upper and lower part, 

 the lower part is sinuate with a distinct, medial, denticle-like process, 

 laterad of which are two less distinct extensions ; the upper part of the 

 clypeal border appears as two semidivided rounded processes (which 

 appear to be on the lower part of the free surface, but closer examina- 

 tion shows them to be embodied in the divided border as indicated 

 above) ; mandibles with two subequal denticles medially located (not 

 evident on worn mandibles); antennae normal in form, scape amber 

 with a yellow patch, peduncle dark amber, flagellum light amber 

 below, darker above. 



Thorax black with occasional infusions of red on the propodeum 

 and marked with light yellow as follows: elongate patches on the 

 pronotum, two spots on the scutellum, the metanotum, spot on the 

 pleuron, and on the tegulae; tegulae somewhat elevated and pitted; 

 enclosm'e deeply pitted and with a medial groove; mesosternal tubercles 

 small; fore- and midlegs dark amber to near the apical ends of the 

 femora, beyond which they are yellow, tm-ning to light amber apically ; 

 posterior legs with coxae dark amber; trochanters, femora, and remain- 

 ing parts varying shades of amber ; wings subhyaline except the stigma, 

 which is darker. 



Abdomen black, except first tergum is reddish amber, tergum 2 with 

 a broad yellow band emarginate (in some specimens the reddish amber 

 coloration extends onto the anterior part of the second tergum), terga 

 3 to 5 with narrow emarginate bands of yellow; venter dark amber, 

 immaculate; pygidium narrowing basally to a small rounded point, 

 apical end broad and subtruncate. 



Male. — Length 9 to 10 mm. Black and reddish amber with yellow 

 markings; deeply and closely pitted; clothed with very short silvery 

 hairs. 



