306 F. W. EDWARDS. 



not surprising that it has frequently been determined either as C. cantans or as 

 C. annulipes. I consider, however, that the evidence of the original descriptions 

 and of the types in Meigen's collection in Paris is sufficient to allot these names to 

 other species. 



I learn from M. Seguy that the type male of Culicada surcoufi has been lost, 

 so that there is now very little prospect of determining Theobald's species with 

 certainty. A female which M. Seguy sent me for examination might have been either 

 this species or A. annulipes. A female in Meigen's series of C. cantans in the Paris 

 Museum is almost certainly A. excrucians. 



Distribution.— I have examined male specimens from the following countries : — 

 Finland (Hattula, L. v. Essen; Tvarminno, Messuby and Walk], R. Frey ; Eriksberg, 

 E. J. Bonsd. : Karislojo, /. Sahlberg) ; Sweden (Sodermanland, Aurivillius ; 

 Ostergotland, P. Wahlberg) ; Denmark (Wesenberg-Lund) ; Germany (Berlin, 

 Lichtimrdt, Oldenberg. Stobbe, Enderlein) ; Austria (many in Winthem's old collec- 

 tion without definite data ; one male labelled " rufibarbis, Gtl.") ; Hungary (Buda. 

 Bird ; Munkacs, Ujhelyi ; Berecsasz, Kertesz) ; Saghalin Island {Paul Labbe, 

 1902)'. In addition I have seen many females which are probably this species, but 

 cannot be determined with absolute certainty, including some from Siberia 

 (Antsiferovo, 59° 10', and Turuchansk, 65° 55', Trybom), The species may therefore 

 be assumed to have a continuous distribution over North Europe and North Asia ; 

 it is also known to be widely spread in North America. It appears to be absent 

 from North-western Europe. 



10. Aedes (Ochlerotatus) freyi, sp. n. (figs. 7d, 8d). 



Scales of head and mesonotum all small and yellow. Abdomen yellow, the 

 tergites with black apical lateral patches, no median dark line. Male palpi longer 

 than the proboscis by neariy the length of the last joint. Long joint with a yellow 

 ring at the base and another beyond the middle ; last two joints pale-scaled at the 

 base ; hairs long, brown. Proboscis all black. Tarsi with white rings at the bases 

 of the joints ; those on the middle joints of the hind tarsi slightly more than half 

 of the length of the joints. Front and middle femora speckled in front, yellow 

 behind ; hind femora mostly yellow, with some black scales towards the tip. Wing- 

 scales mostly dark, the costa yellow on about the basal third. 



Hypopygium : side-pieces rather slender, fully three times as long as their greatest 

 breadth. Basal lobe prominent, rounded apically, with a small patch of long hair, 

 and a single long, weak, pale spine. Apical lobes rather large, somewhat pointed, 

 with a few longish hairs. No arching-hairs on sternal side of side-piece. Claspette 

 with long curved stem and broadly flattened appendage, the expansion commencing 

 at the base. Lobes of ninth tergite each with about six short hairs. 



This species, though resembling A. lutescens in coloration and A. semicantans 

 in the structure of its hypopygium, is certainly distinct from both. The few examples 

 I have seen are all more or less damaged and do not allow a very precise definition 

 of the species on colour characters. Possibly the costa being yellow towards the 

 base only instead of for the greater part of its length might distinguish the female 

 of A. freyi from that of A. lutescens. The only undoubted female of A. freyi 

 I have seen was considerably denuded ; it had scattered light scales on the wings, 

 and the proboscis largely pale except towards the base and tip. 



Distribution.— Vm\?in6. (Eriksberg, E. J. Bonsd., type male in Helsingfors 

 Museum); Germany (Berlin-Finkenkrug, 27.V.00, L. Oldenberg, 3(^, 1$). 



11. Aedes (Ochlerotatus) lutescens (Fabricius) (fig. 7 c). 



{}) Culex flavescens, Miiller, Fauna Insectorum Friedrichsdalina, p. 87 (1764). 



Culex lutescens, Fabricius, Syst. Ent. p. 800 (1775). 



(?) Culex variegatus, Schrank, Enum. Ins. Austr. p. 482 (1781). 



