VOL. XIX, PP. 159-172 NOVEMBER 12, 1906 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NOTES ON SOME AMERICAN MOSQUITOES WITH DE 

 SCRIPTIONS OF NEW SPECIES. 



BY HARRISON G. DYAR AND FREDERICK KNAB. 



The following paper is a continuation of the subject presented 

 in this Journal (Proc. Biol. Soc., Wash., xix, 133-142). Con 

 tinued studies and the receipt of new material have made a 

 number of matters worthy of record. As in our previous paper, 

 the first locality mentioned in the description of new species 

 may be considered the type locality. 



GENUS ANOPHELES MEIGEN. 

 Anopheles quadrimaculatus Say. 



Anopheles quadrimaculatus Say, Keating's narr. St. Peters River, ii, 356, 

 1824. 



Anopheles guttulatus Harris, Cat. Ins. Mass., 1833. 



Anopheles annulimanus van der Wulp, Tijd. voor Ent., x, 127, 1867. 



Anopheles ivalkeri Theobald, Mon. Culic., i, 199, 1901. 



This species is clearly not introduced from Europe, and we think should 

 not be considered the same as the European maculipennis Meigen without 

 rigid proof. We are unable to make the comparison, having neither adults 

 nor larvae of the European species. Theobald's comparison of adults (Mon. 

 Culic., i, 194, 1901), is inconclusive, especially without exact examination 

 of larvae. AVe therefore provisionally eliminate the European names from 

 the synonymy. Our species ranges throughout the eastern United States, 

 from New Hampshire and Ontario to Florida and Texas. We have it also 

 from Cuba. Western localities should be discredited. Occasional speci 

 mens have the black wing-spots indistinct or absent. We believe that 

 such specimens were the basis of the records of the European A. bifurcatus 

 Linn, in America and of Theobald's A.walkeri. 



Anopheles occidentalis sp. nov. 



Thorax with a broad dorsal pale lilaceous band, cut by three narrow 

 brown stripes ; a broad lateral brown band ; pleura pale, with three brown 

 stripes ; abdomen, legs and palpi dark brown. Wings with the scales of 

 the veins forming four black spots as in A. quadrimaculatus, but rather 

 more rounded and contrasted. 



32 PROC. BIOL. Soc. WASH., VOL. XIX, 1906. (159) 



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RIDGWAY 

 COLLECTION. 



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