Z PROCEEDINGS OF THE NATIONAL MUSEUM vol. 80 



The geographical distribution of the species of Coccinella is out- 

 lined here on the basis of the material personally studied by me. 

 The localities are grouped in the sequence from east to west, and from 

 north to south. The names of the collectors are indicated only for 

 rare or little-known species and for especially interesting finds. 



Genus COCCINELLA Linnaeus 



Body more or less broadly oval, from moderately to very strongly 

 convex. Head black, with a yellowish- white spot on each side near 

 the eyes, or with a broad transverse white band across the front. 

 Antennae longer than the diameter of the eye, with a compact club. 

 Antennae and mouth parts dark brown or black, the base of the 

 mandible frequently with a white spot; labrum brownish. Pronotum 

 black with quadrangular or triangular white markings in the ante- 

 rior angles, and in some species also with a white stripe along the 

 anterior margin. Underside black, the episterna and the epimera of 

 the mesosternum and metasternum white in some species. Prester- 

 num with two carinae, which are slightly convergent anteriorly. 

 Mesosternum not emarginate in the middle of the anterior margin. 

 The coxal lines of the first abdominal sternite divided into two sep- 

 arate branches, one of which runs parallel to the posterior margin of 

 the segment and the other directed toward the anterior angles. Legs 

 black, tibiae with two spurs at the end, tarsal claws with a tooth at 

 base. Elytra yellow, orange, or red with a variable black pattern. 

 The elytral patterns of all the species and varieties of Coccinella may 

 be represented as derivatives from the basic pattern consisting of six 

 spots on each elytron (fig. 30). The first of these spots (^, the 

 scutellar spot) lies on the suture at the scutellum and is common to 

 both elytra; the humeral spot (1) lies at the humeral angles; the 

 lateral spot (2) lies at one-third of the length of the elytron, near the 

 external border; the discal spot (3) at two-fifths of the length of 

 the elytron, closer to the suture than to the external border; the 

 marginal spot (4) at two-thirds of the length of the external border, 

 and the apical spot (5) at four-fifths of the length of the elytron, 

 closer to the suture than to the external border. Among the Ameri- 

 can species only Coccinella undecimpunctata Linnaeus, some varieties 

 of C. johnsoni Casey, and C. transversoguttata Falderman var. nuga- 

 toria Mulsant have the basic elytral pattern of the genus unchanged. 

 In all other species some of the spots are either absent or confluent 

 with others. Especially frequent is the fusion of spots 4 and 5 into 

 a common apico-marginal spot (4 + 5) . This fusion is frequently so 

 intimate that the compound nature of the resulting spot may be not 

 at all apparent. 



Male genitalia. — The terminolog}" of the parts of the genitalia of 

 Coccinellidae proposed by Verhoeff (1895) seems to me preferable to 



