1909] Wolcott, Cteridw, Public Museum, Milwaukee. 97 



15. Thanasimus nigriventris Lee. Wis. ; Mich. ; Wash. 



A species of wide distribution, occurring from Ontario to 

 Vancouver Island and southward through nearly all the States 

 west of the Mississippi River to Mexico and Guatemala, but 

 showing practically no variation in color and markings in speci- 

 mens from all localities. 



16. Clerus spinolae Lee. Tex.; Cal. 



In all the specimens in collection the postmedian spots form a 

 broad fascia, which in one specimen is scarcely interrupted at the 

 suture. The length varies from J.J to 14 mm. This is, the writer 

 believes, the first time this species has-been recorded as occurring 

 in California. 



17. Clerus rosmarus Say. Pa. 



18. Clerus lunatus (Spin) Klug. N. J.; Mo. 



19. Clerus quadrisignatus Say var. laticinctus Lee. Tex. 



Six specimens, all of which are referrable to the color variety 

 laticinctus. 



20. Clerus quadriguttatus Oliv. (nigripes Say) Wis. 



Nigripes is placed by Sigm. Schenkling as a distinct species, 

 but it does not differ from quadriguttatus Olivier. 



20a. Clerus quadriguttatus Oliv. var. rufiventris Spin. 



Some specimens in the collection from Wis. ; Mich., and 

 Kans., belong to this variety, but in all there is a faint indication 

 of red at base of elytra. 



21. Clerus nigrifrons Say. Pa.; Neb. 



This is placed as a synonym of quadriguttatus Oliv., by 

 Schenkling, but, as pointed out by Mr. Chas. Schaeffer (Bull. 

 Brooklyn Ins., I, No. 7, p. 155), nigrifrons is a valid species, it 

 being more slender, the sculpture of upper surface finer and more 

 shining and the abdomen is black, the latter being red in quadri- 

 guttatus. 



