288 F. W. EDWARDS. 



T. glaphyroptera is distinct in coloration from all other European species, but is 

 very similar to the North American T. impatiens, Walk., from which it differs by the 

 very distinctive male hypopygium. The male palpi are much more slender than 

 those of any other European species, and seem to indicate an approach to Ciilex, 

 although the terminal joints are not upturned. The ornamentation of the thorax 

 is variable, some specimens having a distinct pattern of ochreous or whitish lines 

 (one straight median, and a pair of curved lateral) on a dark ground. 



The larva is unknown. 



Distribution. — Recorded by Schiner from Austria, and by Eckstein from the 

 Strasburg district. The specimens I have seen are from Austria (Rekawinkel, Pokorny ; 

 Hammem, Mik ; also several from Schiner's original series, collected by Egger) ; 

 Moravia (Frain, Handlirsch) ; Hungary (Bartfa, Kertesz) ; Sweden (Stockholm ; 

 Dalecarlia, Norrbotten, Boheman ; Ostergotland, Haghmd) ; Germany(?) (Coll. 

 Loew, Berlin Museum) ; Finland (Kivikoski, Saima-Canal, Adelung ; Kuusto, 

 Lundstrom ; Kittila, Kroger us ; Petrosaw, Giinther ; Sarasniemi, Wuoreniaus). 



3. Theobaldia (Theobaldia) aiaskaensis, Ludlow. 



Theohaldia aiaskaensis. Ludlow, Can. Ent. xxxviii, p. 326 (1906). 

 Culiseta siberiensis, Ludlow, Insec. Inscit. vii, p. 151 (7th Jan. 1920). 

 Theobaldia arctica, Edwards, Bull. Ent. Res. x, p. 136 (end Jan. 1920). 



In describing T. arctica I compared it with T. aiaskaensis, and suggested that 

 the two might be the same, though according to the published figure of T. aiaskaensis 

 there appeared to be certain differences in the male hypopygium. Recently Dr. 

 H. G. Dyar sent me a male from Alaska which shows that the supposed differences 

 do not exist. The species is easily distinguished by leg markings from the other 

 European forms, but is represented by allied species, differing in hypopygial structure, 

 in Mexico and the Punjab. 



Distribution. — I have examined specimens from Archangel ; Scotland ; N. 

 England ; Sweden (Norrbotten, Boheman ; Jemtland, Schonherr ; Stockholm, 

 Boheman) ; Lower Austria ; Upper Silesia (Astron, Brauer) ; Siberia (Irkutsk, 

 Ahnger ; Inserovo, 62° 5', Trybom). Ludlow and Dyar record it from Eastern 

 Siberia, Alaska and Alberta. 



4. Theobaldia (Theobaldia) annulata (Schrank) (fig. 1a). 



Culex annulatus, Schrank, Beitr. Z. Naturg. p. 97 (1776). 

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

 ? Culex annulatus, de Fourcroy, Ent. Paris, p. 516 (1785). 

 Culex annulatus, Fabricius, Mantissa Ins. ii, p. 363 (1787). 

 ? Cidcx nicaensis, Leach, Zool. Journ. ii, p. 292 (1825). 

 Culex affinis. Stephens, Zool. Journ. iv, (1825). 



A common and easily recognised domestic species, normally exhibiting very 

 little variation except in size. North European specimens are on the average larger 

 than those from the south. 



The name Cidex annulatus was apparently proposed independently by Schrank, 

 de Fourcroy and Fabricius, but the same species was designated in each case. De 

 Fourcroy's diagnosis is totally inadequate, but he gives the habitat as Parisian 

 gardens, so that he more probably had this species than an Aedes. 



C. variegatus, Schrank, is generally quoted as a s3Tionym of T. anmdata, but the 

 inadequate diagnosis would perhaps serve better for Aedes lutescens. Walker 

 mentions specimens of T. annulata in the British Museum "from Dr. Leach's 

 collection," and it is possible that these specimens (which are no longer in existence) 

 may have been the originals of C. nicaensis. 



The larva has been described by Langeron. 



