1918] Ludlow — A Note on Limatus durhami Theobald 1*27 



Body slender, more strongly narrowed cephalad and caudad than 

 in media, the attenuation caudad being especially pronounced and 

 gradual. The processes of the last carinae shorter and much broad- 

 er than in media; the processes of the two preceding segments differ 

 in having the mesal margin much less oblique and more nearly 

 symmetrical with the outer one, caudally rounded. The caudal 

 extension of the posterior ends of the carinae begins farther forward 

 than in media. 



Vertigial sulcus very deep, ending below on a level with the 

 centers of the antennal sockets, not truly bifurcate through there 

 is a vague fine line from its lower end to each antennal socket. 



Sternites without processes. 



Principal processes of gonopods gradually narrowing distad 

 much as in media, but the glabrous distal region shorter and curv- 

 ing more abruptly and more decidedly mesad, the distal, subvertical 

 edge not obtusely excised as in media. The minor dorsal (anterior) 

 processes more slender than in media and not subparallel, extend- 

 ing each obliquely mesodistad. 



Length of type (male) near 35 mm.; wddth, 5.5 mm. 



Locality: North Carolina: Cranberry (Coll. Aug. 6, 1896. Rec'd 

 for study through Prof. R. Thaxter.) 



The type is abundantly infested with an Empusa. It is in the 

 collection of the Department of Cryptogamic Botany at Harvard 

 University. 



A NOTE ON LIMATUS DURHAMI THEOBALD. 



By C. S. Ludlow\ 



An interesting omission in the available descriptions of this 

 species, so far as the English and American authorities at least are 

 concerned, was brought to my attention by the receipt of speci- 

 mens sent by Colonel W. H. Wilson, M. C, United States Army, 

 from the Canal Zone. 



Neither in Mr. Theobald's description^ nor in that given by 

 Howard, Dyar and Knab^ is mention made of a very noticeable and 



1 Theobald, F. V., Monograph, Culic. 11, p. 349. 1901. Ibid., Ill, p. 333. 1903. 



2 Howard, Dyar and Knab, Monograph, The Mosquitos of North and Central America and 

 the West Indies, III, p. 40. 1912. 



