ART. 4 BEETLES OF THE GENUS COCCINELLA DOBZHANSKY 1 1 



toward the posterior angles or toward the disk; the white stripe on 

 anterior margin of the pronotiim is missing. The mesepimera and 

 metepimera are white, and the anterior coxae of the males have a 

 white spot, as in prolongata. The convexity of the elytra is more 

 regular than in prolongata, but less regular than in other species of 

 Coccinella. The elytral spots are strongly increased in size and con- 

 fluent with one another. Spots 2, 3, 4, and 5 form aringlike pattern, 

 which in most specimens is connected with spot ji. The elytral 

 suture is red, at least in the posterior half of its length. The male 

 genitalia are slightly different from those of the typical prolongata. 

 The process on the distal end of the penis is somewhat longer and 

 more pointed at the end; the sides of the penis are more rounded. 

 In spite of all these differences, I consider this form a subspecies of 

 prolongata rather than a separate species. 



Geographic distribution. — Localities as follows : 



California: Sequoia National Park, near Camp Wolverton (7,000 to 9,000 feet 

 June 24-25, 1929, 51 specimens, E. C. Van Dyke, collector; ibidem, June 29, 

 1930, 2 specimens, T. Dobzhansky, collector; the type in the California 

 Academy of Sciences collection). 



COCCINELLA PROLONGATA Crotch subspecies BRIDWELLI Nunenmacher 



Coccinella hridicelli Nunenmacher, Ent. News, vol. 24, p, 76, 1913. — Leng, 

 1920, p. 216. 



This subspecies is different from the typical form and from the 

 subspecies sequoiae Dobzhansky by the smaller size and the less con- 

 vex shape of the body, by the more strongly alutaceous surface, and 

 the color of elytra. Elytra entirely black. The wliite markings on 

 the head and the pronotum, and the punctation of the elytra, as in 

 sequoiae. Mesepimera white, metepimera usually white, but in some 

 specimens black (the type of bridwelli, according to Nunenmacher's 

 description, has black metepimera). Three out of the five males 

 studied had white spots on the anterior coxae. The genitalia not 

 distinguishable from those of sequoiae. Length of body, 5.5-6.3 mm. 



This is one of the three entirely black forms known in the genus 

 Coccinella. It is more similar to the subspecies sequoiae than to the 

 typical form. The subspecies sequoiae may be considered as an 

 intermediate form between the subspecies bridwelli Nunenmacher 

 and the typical prolongata Crotch. 



Geographic distribution. — LocaUties as follows: 



California: Tahquitz Valley (type and cotypes, J. C. Bridwell, collector), Tah- 

 quitz Canyon (E. C, Van Dyke, collector), Idyllwild (E, C. Van Dyke, 

 collector), 



COCCINELLA CALIFORNICA Mannerheim 



Coccinella calif arnica Mannerheim, Bull. Soc. Imp. Nat. Moscou, vol. 16, p. 312, 

 1843.— Caset, 1899, pp. 88, 89.— Johnson, 1910, p. 62. 



Coccinella trasversoguttala Falderman var. californica Mannerheim, Leng, 1903, 

 p. 200; 1920, p. 216. 



