Clare Island Survey — Diptera. 25 9 



* 



A. pygmaea V. d. Wlp. — M. : Knappagh, one $ (G.). A tiny species (only 

 2 mm.), easily recognized by its light grey thorax with three conspicuous 

 black longitudinal bands and banded abdomen. 

 *Helea (Ceratopogon) rostrata Winn. — CI. : Two $ and one ? . M. : Castlebar 

 Lough, one £ ; Belclare, a pair ( $ and 5 ) in cop. and one ? ; Lough near 

 Westport, one ? ; and Knappagh, one $ and two 2 (G.). This species 

 is not uncommon, and is easily recognized by the unusual length of 

 the proboscis, which is fully as long as the depth of the head. The wings 

 are practically bare in the $ , but distinctly (though only partially) 

 hairy in the ? . 



Culicoides pulicaris L. — CI. : one $ (Gr.). M. : Castlebar Lough, one <? ; and 

 Lough near Westport, one $ (G.). A common species. The genus 

 Culicoides differs from Helea in the absence of a distinct empodium, this 

 structure never attaining half the length of the claws. C. pulicaris has 

 elegantly spotted wings, and is easily recognized. 



Palpomyia flavipes Mg. — CI. : one ? (H.); one ? (G.). M. : Belclare, one<? 

 and one ? (H.) ; Louisburgh, three ? (M.) ; "Westport and Lough near 

 Westport, one $ at each (G.). This species is distinguished by the following 

 characters : Thorax shining black, front femora alone armed with spines 

 up to about eight in number, hind femora yellowish with the apical third 

 blackish. The genus Palpomyia, containing about half a dozen British 

 species, has been recently separated by Kieffer, the following being some 

 of the characters : some or all of the femora spined beneath, none of 

 them thickened, empodia absent. 



Serromyia femorata Fab. — CI.: one $ (H.). M. : Glendarary, one 3 (H.). 

 The only British species of the genus, which is characterized by the 

 strongly thickened and spined hind femora. 



Family Culicidae. 



Anopheles bifurcatus L.—M. : Westport, one ? at riverside (G.). 



Culex pipiens L. — CI. : one $ (H.). M. : Westport, one $ at riverside 

 (G.). The "Common Gnat," of universal distribution in Britain. 



Sayomyia (Corethra) phimicornis Fab.— CI. : three $ and one $ (G.). M. : 

 Glendarary, one $ and two ? ,and Belclare, one $ (H.); Clogher, two $ 

 and one ? (G.). The character given by Theobald (Mon. Culicidae, vol. ii, 

 p. 300) for distinguishing this species from culiciformis, Deg., viz. the 

 position of the posterior cross-vein, is variable, and hence of no value for 

 this purpose. Moreover, K. Griinberg, in "Die Siiswasserfauna 

 Deutschlands — Diptera, p. 94 (1910), places culiciformis, Deg. along with 

 velutina, Buth^ in the genus Corethra, Mg. (sens, str.), which is 



R.I.A. PKOO., VOL. XXXI, B 25 



