THE CANADIAN ENTOMOLOGIST 335 



the transverse piceous band 'was at times very much reduced and 

 subobsolete, but in these individuals the elytral meshes were 

 always black. Inornata is described so as to correlate the variants 

 of erosa more exactly. 



Length 23.0-27.0 mm. 



Holotypes are in the collection of the California Academy of 

 Sciences. Paratypes are in the author's collection. 



Habitat. — Arizona. Exact locality has not been recorded on 

 the specimens studied. 



Tegrodera aloga Skinner. — (A race of erosa Lee.) Head red, 

 antennae and collar black. Thorax red or variegated with black. 

 Elytra bright yellow, reticulate; black between the reticulations, 

 with apices black. There is a transverse piceous fascia, constricted 

 in the middle of each elytron. Elytral suture black. Abdomen 

 and legs black. Length 14.0-26.0 mm. 



Habitat. — Near the banks of the Gila River, near Florence, 

 Arizona. Collected on May 4th, 1903, by Mr. C. R. Biederman. 



Holotypes in the collection of the Philadelphia Academy of 

 Natural Sciences. 



Dr. Skinner states that his series of sixteen specimens shows 

 no variations, except in size. It differs from laticincta Horn in 

 being more coriaceous, the reticulations being much coarser and 

 showing the background more conspicuously. The transverse 

 elytral fascia in laticincta is wider and not constricted in the middle 

 of each elytron. It may be distinguished at once from erosa Lee. 

 by the distinct, black suture. 



Bibliography.— Ent. News, vol. XIV, No. 6, June, 1903, p. 168. 



Tegrodera laticincta Horn. — Head red, pronotum black or 

 varied with red; antennae black. Elytral reticulations rhore or 

 less close, with a rather wide and exactly transverse piceous fascia 

 at middle; meshes variable as to colour in the same individual, 

 pale to black, general colour being yellow; piceous area at apex 

 better indicated. 



Length 19.0-22.0 mm. 



Habitat. — California (Owens Valley ; type region (Horn) . 

 Freeman and Bishop, Inyo Co., June, Dr. A. Fenyes collector). 



Bibliography. —Trans. Amer. Ent. Soc, XVIII, Feb., 1891, 

 p, 390. 



