270 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.59. 



MONOPHYLLA PALLIPES Schaeffer. 



Brownsville, Texas, June 4, 9 (Schwarz, Townsend); 2 males; 3 

 females. 



MONOPHYLLA CALIFOKNICA Fall. 



Los Angeles County, California (A. Koebele, D. W. Coquillett) ; 

 Santa Cruz Mountains, California (A. Koebele); Panamint Valley, 

 California, April (A. Koebele); Los Gatos, California (Hubbard and 

 Schwarz); Santa Rosa, Lower California, July (G. Beyer); Catalina 

 Springs, Arizona, April 11, on Prosojris juliflora (Hubbard and 

 Schwarz); Hot Springs, Arizona, December 5, 1901, reared from 

 dead branch of Prosopis juliflora (Schwarz and Barber). Seven 

 males; six females. 



Genus TILLUS Olivier. 



TILLUS COLLARIS Spinola. 



Langdale, Chambers County, Alabama (H. H. Smith) ; Covington, 

 Louisiana, June 1 (H. Soltau). Two? females. 



Genus CALLOTILLUS Wolcott. 



CALLOTILLUS ELEGANS Erichson. 



Point Isabel, Texas, August 21; Brownsville, Texas, June 5, 8 

 (E. A. Schwarz) ; San Diego, Texas, April 29, May 7 (E. A. Schwarz) ; 

 Nueces, Texas, April 28 (C. L. Marlatt) ; Santa Rosa, Lower Cali- 

 fornia, July 1 (G. Beyer). Four males; eight females. 



CALLOTILLUS VAFER, new species. 



Moderately elongate, shining, rather sparsely clothed with long 

 erect white and black pubescence, testaceous, abdomen and apical 

 half of elytra black, a slightly oblique median fascia interrupted at 

 suture, white. Head with front finely, sparsely punctate, very 

 feebly, transversely wrinkled; occiput and region of eyes with a few 

 rather coarse scattered punctures. Prothorax nearly one-half longer 

 than wide, strongly convex both laterally and transversely; sides par- 

 allel, suddenly strongly constricted at basal two-fifths, thence slightly 

 convergent to base; subapical transverse impressed line evident, 

 especially at flanks; surface very finely, sparsely punctate. Elytra 

 wider at base than thorax; sides straight, gradually, feebly divergent; 

 apices conjointly rounded; surface with fine, distant, feebly im- 

 pressed, seriately arranged punctures, becoming obsolete toward the 

 apices; the basal region smooth, almost impunctate. Metasternum 

 sparsely, finely punctate. Abdomen very shining, finely, very 

 sparsely punctate, the punctures dense at middle of third and fourth 

 ventral segments, more broadly so on the latter, from each of the 

 punctures a single, rather short recumbent white hair arises. Length, 

 3.2 mm. 



Type locality. — Fort Yuma, opposite Yuma, Arizona. 



