COCCINELLA. 



63 



3060. Coccinella monticola Mulsant. 



Distribution: New England to the Pacific. 



In degree of confluence of the elytral spots Coccinella monticola (fig. 

 58) gives the following varieties which have pronota as shown in fig. 59: 



Var. sellica n. var. \ f median band. Califor- 

 nia and New Hampshire. (Fig. 58, d. ) 



Var. postwa n. var. Median band -(- apical band. 

 California. (Fig. 58, c.) 



Var. conftuenta n. var. \ - median band -f api- 

 cal band. California. (Fig. 58, e). 



Fl(; - 55. -Variation ..r pron..i :l i pattern in 

 C. transversoguttata. Mode atob. 



The following patterns (fig. 60), although they appear at first glance 

 very different from variety monticola, are nevertheless placed here, with 

 some reservation, because of the intergradation from C. monticola in the 

 direction of reduction of pigment in some localities. In any one locality 

 the amount of pigment is tolerably constant. It seems to me probable 

 that this amount in C. monticola is a result of environmental influence. 

 The variation in their pronota is given in fig. 61. 



FI(T. oli. Variation ol' elytra I patt'Tii of C. <'<tliii>rni<'<i. l>- mode. 



FIG. 57. Variation in pronotal pattern in C. ntfifornicft. l> mode; ,/, variety iiie/niicii//in . 



FIG. oS. Variation in elytral pattern in C. nmn/ico/n. b -mode. 

 FIG. 59. Variation of pronotal pattern in C. mnntirvla. 6=mode. 



Var. alutacea Casey. Pigment of median band so reduced as to result in complete or 

 partial isolation of a lateral spot. Colorado and westward. (Fig. 60, e, d.) 



Aberration impressa Casey. Similar, with "an impression along the side margin of the 

 pronotum extending arcuately inward just before the middle, disappearing from the 

 edge." This unique specimen is probably an aberration. The type specimen may 

 never be duplicated, or at least may not become established. California. 



Var. sonorica Casey. The median band much reduced with the lateral spot absent. 

 Colonia Garcia, Chihuahua, Mexico. (Fig. 60, b.) 



Var. bigiittata. Pigment much reduced. Lateral and apical spots absent. Buena Vista, 

 Colorado. (Fig. 60, a.) 



