INSECUTOR INSCITI^ MENSTRUUS 57 



of Culex fatigans Wied. (See also Mon. Culic, v, 383, 1910, 

 where the reference is repeated). Blanchard makes the same 

 reference (Les Moust., 353, 1905), copying Theobald. The 

 synonymy is incorrect, as the male is not fatigans (= quinque- 

 fasciatus Say), but a distinct species of the salinarius group. 

 However this is said to constitute a restriction of Heteronycha 

 to the Culex element, and therefore Howard, Dyar and Knab 

 were not at liberty to restrict Heteronycha to the Aedes element 

 of Lynch, as in the reference cited from the monograph. 



Brethes described lynchii from females; but later he added 

 to the confusion, by describing the supposed male of it, but 

 his male was in reality a Culex {=C. brethesi Dyar). Conse- 

 quently when he found the true male, he did not recognize it, 

 and redescribed it under the name tapinops. By his excellent 

 figure it is clear that the species belongs strictly to the scapu- 

 laris group. I have also examined a male kindly sent by Dr. 

 Juana Petrocchi. 



The species is not uncommon in Argentina, presumably after 

 specially heavy rains. 



Species 5 



Aedes (Ochlerotatus) crinifer Theobald. 



Culex crinifer Theobald, Mon. Culic, iii, 209, 1903. 



Culex crinifer Peryassu, Os. Culic. do Brazil, 187, 1908. 



Culex crinifer Theobald, Mon. Culic, v, 361, 1910. 



Culex crinifer Surcouf & Gonzales-Rincones, Essai Dipt. vul. 



Venez., 181, 1911. 

 C(ulex) crinifer Lutz, Mem. Inst. Oswalddo Cruz, x, fasc, ii, 87, 



1918. 

 Acdcs (Heteronycha) crinifer Dyar, Ins. Ins. Mens., viii, 105, 1920. 



Described from Brazil. I have a single male, by the kindness 

 of Dr. Arthur Neiva, which shows the characteristic hypo- 

 pygium of the scapularis group. 



Species 6 



Aedes (Ochlerotatus) scapularis Rondani. 



Culex scapularis Rondani, Studi ent., Baudi e Truqui, 109, 1848. 

 Ochlerotatus confirmatus Lynch Arribalzaga, Rev. Mus. de la 

 Plata, ii, 146, 1891. 



