INSECUTOR INSCITI.?; MKNSTRUUS 165 



attention. Only when the larvae or male genitalia are studied' 

 does the specific difference become readily apparent. 



Aedes (Ochlerotatus) tormentor Dyar & Knab. 



Acdcs tormentor Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 189, 



1906. 

 Ochlerotatus serratus Coquillett (not Theobald), U. S. Dept. Agr., 



Bur. Ent, Tech. Ser. 11, 19, 1906. 

 Aedes torm-entor Dyar, U. S. Dept. Agr., Bur. Ent., Circ. 72, 4, 



1906. 

 Aedes tormentor Thibault, Proc. Ent. Soc. Wash., xii, 18, 1910. 

 Aedes tormentor Howard, Dyar & Knab, Mosq. No. & Cent. Am. 



& W. I., iv, 797, 1917. 

 Aedes tormentor Dyar, Ins. Ins. Mens., vi, 77, note, 1918. 

 Aedes {Ochlerotatus) tormentor Dyar, Ins. Ins. Mens., vi, 77, 1918. 

 Aedes (Heteronycha) tormentor Dyar, Ins. Ins. Mens., viii, 105, 



1920. 



This species has no colorational differences from serratus; 

 but the larva differs in having a long pecten on the air-tube, 

 which much exceeds the hair-tuft. In both serratus and atlan- 

 ticus the pecten does not reach the hair-tuft. The male genitalic 

 differences are well marked. Mr. Franklin Sherman records 

 this species from North Carolina (Journ. E. Mitchell Sci. Soc, 

 xxxvi, 91, No. 10, 1930) ; but I think that the identification is 

 erroneous and that all the specimens are atlanticus D. & K. 



Aedes (Ochlerotatus) oligopistus Dyar. 



Aedes dupreei Howard, Dyar & Knab (in part, not Coquillett), 

 Mosq. No. & Cent. Am. & W. I., iv, 781, 1917. 



Aedes oligopistus Dyar, Ins. Ins. Mens., vi, 76, note, 1918. 



Aedes (Ochlerotatus) oligopistus Dyar, Ins. Ins. Mens., vi, 70, 

 1918. 



Aedes (Heteronycha) oligopistus Dyar, Ins. Ins. Mens., viii, 105, 

 1920. 



Two male specimens from Trinidad are all that are before 

 me, the female being unknown. The mesonotum is entirely 

 silvered across in the male sex. 



The larva has the upper head-hair single, lower in twos ; 

 skin sparsely granular; lateral comb of eighth segment of eight 

 large, well separated, sharply pointed scales, without lateral 



