28 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 80 



Male genitalia (figs. 12, 20). — This species may be recognized at 

 once by the rudimentary, little chitinized siphonal capsule, and by 

 the presence of a wide dilatation of the sipho just distal to the siphonal 

 capsule. This dilatation is provided with an opening on the con- 

 cave side of the sipho. Penis much longer than the paramera, basal 

 plates much longer than wide, extended posteriorly into two diver- 

 gent processes. 



Female genitalia (fig. 29). — Receptaculum seminis long and slender, 

 cornu pointed at the end, the ringlike sculptor rudimentary. Infun- 

 dibulum short and provided with wide funnel-shaped dilatations at 

 both ends. 



Geographic distribution. — Localities as follows: 



Massachusetts: Stoneham (F. A. Sherriff collector), Nahant (F. E. Blaisdell 

 collector), Falmouth Heights (T. Dobzhansky collector). 



Alaska: 4 miles north of New Rampart House (J. M. Jessup collector), 60-75 

 miles north of Rampart House (J. M. Jessup collector). 



Remarks. — This species lives only along the sea coasts of Europe, 

 on saline soils of Middle and Central Asia, and along the coast of the 

 Polar Ocean from Greenland to the mouth of Yenisei. The finding 

 of this species on the Massachusetts coast may be explained by two 

 different hypotheses. First, it may have been introduced there from 

 Europe. Second, it may be native there. In the latter case one may 

 expect that it will be found also along the coasts of Nova Scotia, 

 Newfoundland, and Labrador. The individuals from Massachusetts 

 are quite similar to those from England and the northern coasts of 

 Europe. The two individuals from Alaska are different from those 

 from Massachusetts in appearance. They are larger, less convex, 

 and have a stronger punctation. This seems to be a race the distri- 

 bution of which is, as far as known, restricted to Alaska. It seems 

 probable that C. undecimpunctata will be found also along the north- 

 ern coast of eastern Siberia. 



GEOGRAPHIC DISTRIBUTION OF SPECIES OF THE GENUS 



COCCINELLA 



As shown above, the nearctic region is inhabited by 1 1 species of 

 the genus Coccinella. In the palaearctic region there are at least 15 

 species of that genus. Six of the nearctic species are represented in 

 this region by more than one subspecies. Furthermore, 5 species, as 

 follows, live in both nearctic and in palaearctic regions: transversa' 

 guttata Falderman, nivicola Menetries, trifasciata Linnaeus, hiero- 

 glyphica Linnaeus, and undecimpunctata Linnaeus. All these species, 

 except perhaps undecimpunctata, are widely distributed in northern 

 and eastern Siberia, in Canada, and in the northern United States. 

 Most of them are found also in Alaska, and it is very probable that 

 all of them will be found there when the country is studied more 



