June i8 99 .] Casey: On American Coccinellid/e. 81 



alutaceous, the punctuation sparse and almost obsolete. Length 4.5 mm.; 



width 2.7 mm. California (Sonoma Co.. ) trivittata, sp. nov. 



21 — Subapical arcuate spot of the elytra not attaining the suture or apical angles. 



Length 3.8-5.0 mm.; width 2.3-3.2 mm. New Jersey to Puget Sound \tridens 



FCirby ; lunatoviaculata Mo;s.] parenthesis Say 



Subapical arcuate spot flexed posteriorly and inwardly, attaining the suture and apical 



angles; body smaller and more distinctly punctate. Length 3.7-4.75 mm.; 



width 2.25-2.6 mm. Nevada and California (valley of the Truckee River). 



apicafis, sp. nov. 



Of the described species not included above, 15-macu/ata, of Mul- 

 sant, has a scutellar dash and generally six spots on each elytron, the 

 anterior juxtasutural dilated and apparently formed of two ; it is said 

 by Crotch to occur in Missouri and may be inserted after eo/n'ergens ; 

 leporina Muls. , has a subbasal band from one callus to the other and 

 the elytra each two black spots, the anterior transverse and almost tri- 

 angular, the posterior smaller, obtriangular and joined to the anterior; 

 it is described from California and may be placed after vernix. Sinuata, 

 of Mulsant, has the elytral suture black for three-fourths and the elytra 

 each a vitta from the callus for five-sixths the length, almost semi- 

 circularly curved in its posterior half and dilated opposite the suture 

 near the anterior limit of the arcuate portion ; its dimensions are said 

 to be 5.9 x 3 3 mm., which is larger than any of the allied species 

 known to me ; it belongs near trivittata in the table ; interrogans is 

 placed as a synonym of sinuata by Crotch. Finally, oregonensis, of 

 Crotch, is similar to spuria, but lacks the discal white spots of the pro- 

 notum and falcigera is allied to trivittata, but is also devoid of the 

 discal diverging lines. 



The sexual characters are well marked, the anterior and middle 

 tarsi being distinctly dilated and the abdomen emarginate at apex in 

 the males. Extensa, subsimilis and vernix, together with leporina 

 Muls. , may all be subspecies of the last, but I have no means of stat- 

 ing this with certitude. Mxsta is said to be a variety of leconlei by 

 Crotch, but in my opinion there is no reason for this assumption, as 

 there is no individual known to me which can be considered a connec- 

 tive bond, my series of both being quite homogeneous ; the elytra in 

 muesta are more elongate and more pointed behind than in lecontei. 

 The last two species of the table are almost generically distinct from 

 the others. 



Eriopis connexa Germ., of our lists, is a South American species 

 which is said by Crotch to occur also in California and Vancouver 



