118 CHARLES W. LENG. 



Prof. Wickham mentions this species having been taken at Cov- 

 ington, La., by the late Hugo Soltau. He found it in abundance on 

 yellow sand in open timber a little way from the banks of a small 

 stream. 



Obsoleta group. 



C. obsoleta Say, 1823, Jour. Ac. Phil, iii, p. 143; Lee, Ann. Lye, iv, p. 178, 

 pi. 13, fig. 4 ; Schaupp, I. c, p. 86, pi. 1, fig. 15. 

 Length 16-20 mm. = .64-.80 inch. 



Habitat— Tex. ; Ark. ; N. Mex. ; Ariz. ; Kan. ; La. ; Cal. 



Very large, sericeous, variable in color. Above the hairs consist 

 of short fringe on either side of the thorax ; beneath, the palpi, the 

 flanks of the thorax, the sides of the abdomen and the femora are 

 sparsely clothed. The interocular strije are very faint. Based on 

 color and markings the following have been described : 



Black, immaculate, more slender obsoleta. 



Green, immaculate, more slender var. prasina. 



Black, maculate, broader vnltiiriiia. 



Green, maculate, broader var. Saiitaclar<e. 



The localities given above apply to all the forms included in this 

 group, which are sometimes confused in collections making the dis- 

 tribution at present uncertain. 



Var. prasina Lee, Ann. Lye, iv, p. 178; Schaupp, I. c, p. 86, pi. 1, fig. 16. 

 In addition to prasina, which is the green form of obsoleta, there 

 are unnamed color varieties in which the color is dark blue, and 

 others in which it is coppery, but these appear to be unusual forms. 



C Tiilturina Lee, Proc. Ac. Phil., vi, p. 439 ; Schaupp, I. c, p. 86, pi. 1, fig. 

 17 ; pi. V, fig. 125. 



The markings in this species, when most complete, consist of slender 

 humeral lunule, middle band starting from the margin with a slight 

 upward inclination and bent at nearly a right angle, an apical lunule 

 rectangularly bent at its upper extremity, and a fine marginal line 

 connecting all the markings ; but every mark may be broken or 

 almost wanting and the transition to the obsoleta form is easily 

 traced as far as markings go, yet the typical broad form of vultiirina 

 is j)reserved. 



Prof. Wickham has described the habits of this insect in "Societas 

 Entomologica," September, 1900, v/hen taken at Alpine, Tex., during 

 June and July, chiefly on broad flats of bottom land used as pasture. 

 It lurks in dry spots to leeward of some clump of bunch grass; readily 



