200 Journal New York Entomological Society. [Voi, xi. 



. Var. alutacea Casey, 1899, 1. c, p. 89. 



" Scutellar spot large, transversely suboval or elliptical, the subhumeral always 

 wanting; suture never black; pronotum strongly alutaceous, the minute punctures 

 deep and close-set, the pale spot at the apical angles large, extending to basal third ; 

 body oval, very strongly convex, the elytra dull, finely and feebly punctate, each with 

 a transverse spot at the middle as in ^-iiotuia {(ransversogiitta/a), and a small 

 rounded spot near the margin and somewhat more anterior, the two sometimes sub- 

 iunited, the subapical transverse spot nearer the margin than the suture. Length, 6.7 

 imm.; width, 5.2 mm. New Mexico." 



3059b. Var. californica Mann., 1843, Bull. Mosc. , II, p. 312. 



Closely resembles the preceding and differs by the immaculate elytra. Major 

 Casey mentions a rare spotted form, but all that I have seen are readily assigned to 

 g-notafa. Length, 6-7.5 ™™- = -24-. 30 inch. 



Occurs in California, Oregon and Washington. 



3056. Var. trifasciata Linn., 1758, Syst. Nat., ed. X, p. 365. \J)erplexa Mith.'\ 

 Hemispherical, black, punctulate ; thorax at the anterior angles with a quadrate 



white spot above and below and the anterior margin white ; elytra orange with three 

 fascije black, one subbasal, common, the others medial and subapical, abbreviated at 

 both ends ; head $ entirely white in front ; 9 with two white spots ; meso- and meta- 

 epimera white. Length, 4.5-5 mm. ^ .22-. 25 inch. 



Occurs throughout the northern United States and Canada. The 

 following varieties occur : 



3056a. Var. Juliana Muh., 1856, Opusc. Ent., VII, p. 135. 

 Elytra with the basal band only. 



Occurs in Oregon and California (northern and middle coast 

 regions) \_barda\.^c.'\. 

 3056b. Var. subversa Lee, 1854, Proc. Ac. Nat. Sc. Phil., p. 19. 



Elytra usually immaculate but indications of all the normal mark- 

 ings of the species are liable to rarely occur. I am indebted to Miss 

 Florence Dennis, of Dilley, Ore., for a large number of this variety. 



3057. C. difficilis 6>. , 1873, Trans. Am. Ent. Soc, p. 370. 



Elytral markings reduced to scutellar spot, one or two medial spots, small and a 

 large subapical spot. 



Occur in Utah and Colorado. 



. Var. eugenii Muh., 1866, Mon., p. 95. 



Basal band divided, other bands entire. 



Occurs in California (Tallac and Siskiyou.) 



Besides the described varieties of trifasciata, many other variations 

 in the elytral markings will be found on the Pacific coast where the 

 greatest instability seems to exist. Doubtful forms should be called 

 sulfversa, that being the earliest described variety. 



