40 Journal New York Entomological Society. [Vol. xvi. 



Var. latiusculus Casey. 



Elytra each with two black spots, sometimes distant, sometimes united at suture 

 forming transverse bands. 



Occurs in Fla., La., Tex., Mo. 



Var. marginipennis LeC. 



Elytral spots united so as to leave only scutellar spot, lateral margin and some- 

 times a postmedian sutural spot pale. 



Occurs in N. Y., N. J., Pa., D. C, Va., Fla., Ala., Miss., Tenn., Mo. 



In the collection of Mr. Charles Schaeffer there is a series of 

 marginipennis collected near St. Louis, Mo., in which all the varieties 

 are represented. Except that there is a tendency in the southern 

 states to produce the paler forms, these varietal names scarcely repre- 

 sent more than cabinet varieties. 



Exochomus californicus Casey. 



Similar to the preceding but the elytra are entirely black, except for an elongate 

 humeral mark, and subapical dot red. The color is identical in both sexes. Dtser- 

 torum Casey, differs only by the humeral mark being extended along the base of the 

 elytra. 



Length. — 2.8 to 3.8 mm. =.11 to .15 inch. 



Occurs in Cal. and Nevada. 



Exochomus fasciatus Casey. 



Similar to the preceding but differs in the form of the claws which are feebly 

 toothed at base and in the color of the head in the male which is either entirely dark 

 as in the female or at most partly pale in front. The elytral markings in the few 

 specimens examined consist of two transverse black bands but they may prove to be 

 as variable as in marginipennis. The plate shows the forms already observed. A 

 larger series is needed to complete the description of this species. 



Length. — 2.4 to 2.9 mm.= .10 to .12 inch. 



Habitat. — Southern California. 



? Var. subrotundus Casey. 



Known to me only by Casey's description and a few specimens which seem in- 

 termediate between this and fasciatus. It appears to be a variety in which the black 

 fascise expanding leave only an irregular lateral margin pale. 



Casey's description is as follows : 



" Elytra black on the disk ; body in general more broadly rounded ; punctures 

 very minute and sparse ; head and pronotum black, the apical angles of the latter 

 nubilously paler; elytra black, with a broad pale margin extending, with its inner 

 margin parallel, to nearly three fifths, there obliquely and abruptly narrowed and con- 

 tinued narrowly almost to the apical angles ; body smaller and much more broadly 

 rounded than in marginipennis, with less obvious punctuation." 



Length. — 2.2 mm. = .09 inch. 



Habitat. — El Paso, Texas. 



