part 2] MOSQUITOES IN THE BRITISH MUSEUM. 141 



longer than in G. damnatorum, and the palpi proportionately 

 shorter (scarcely a sixth as long as the proboscis). The tip of 

 the abdomen (female) is said to be blunt, this perhaps indicating 

 an affinity with Gulex rather than with Aedes. Wing- venation 

 not well preserved. 



Coretlira exita Scndder. 1 Chagrin Valley, White River 

 (Colorado), U.S.A. A single poor specimen, badly figured. 

 Although referred by Scudder (with doubt) to Coretlira, it seems 

 possible from the statements made that this form might be a 

 mosquito with the proboscis broken off. On the other hand, there 

 is so little preserved that it might almost equally well be a 

 small Tipulid. 



Oligocene Species. 



(a) Baltic Amber (Lower Oligocene). 



The existence of mosquitoes (Gulex) in Baltic amber has been 

 mentioned by E. von Schlotheim, 2 V. de Motschulsky, 3 Otto Helm, 4 

 and F. Meunier, 5 but no specimen has jet been described. Git lex 

 loewii Ciebel is referred to at the end of this paper under 

 Quaternary species. Helm's statement, that he possessed a male 

 and female of G. -pipiens from amber, requires confirmation as 

 regards the identity of the species. 



Moclilonyx sepultus Meunier. 5 Evidently referred correctly by 

 Meunier to the genus Moclilonyx. Another species (?) of the 

 genus has been mentioned under the name M. atavus by H. Loew. 6 



Coretlira ciliata Meunier. 7 Evidently a true Chaoborus (Core- 

 tlira). It is of interest to note that, in its small size, the specimen 

 agrees rather with the existing Oriental than with the Palsearctic 

 species. It would be unsafe, however, to draw any conclusion 

 from this. 



Dixa succinea Meunier 8 and D. minuta Meunier. 9 Both these 

 species differ only in minor details from recent species. D. minuta, 

 especially as regards the position of r—m before the fork of Ms, is 

 not unlike D. obscura Loew. 



(b) West German Paper-Coal (Upper Oligocene). 



Culicites tertiarius Heyclen. 10 Exact locality not stated. The 

 type is in the British Museum (Natural History), in excellent 



1 ' Tertiary Insects ' 1890, p. 583 & pi. v, figs. 22-23. 



2 ' Petrefaktenkunde Deutschlands ' 1820, p. 43. 



:i Bull. Soc. Imp. Nat. Moscou, vol. xviii, pt. 2 (1845) p. 98. 



4 Schrift. Naturw. Gesellsch. Danzig, vol. ix (1896) p. 222. 



5 Re\oie Scient. du Bourbonnais, vol. xv (1902) p. 199. 



' Ueber die Dipteren-Fauna des Bernsteins ' 1861 ; see Handlirscb, ' Die 

 Fossilen Insekten ' vol. ii (1906-1908) p. 971. I have been unable to consult 

 Loow's paper. 



7 Bull. Soc. Entom. France, 1904, p. 89, figs. 1-3. 



B Ann. Sci. Nat. ser. 9, vol. iv (1906) p. 395 & pi. xvi, figs. 8-9. 



9 Loc. cit. fig. 7. 

 10 Palseontographica, vol. x (1862) p. 79 & pi. x, fig. 30. 



