I 



INSECUTOR INSCITI/Ti MENSTRUUS 100 



Setse of apical lobe very small and short. .. .mercurator Dyar 

 5. Basal lobe a small setiferous area next to the spine; fila- 

 ment of claspette thick, angularly bent in middle, 



cantator Coquillett 

 Spine of basal lobe strong or weak, accompanied by many setae; basal 

 lobe conical ; apical lobe with short, slightly thickened, somewhat 

 curved setae (series 3). 



(■). Filament of claspette shortly and slenderly sickle-shaped, with 

 more or less distinct basal notch. 

 Spine of basal lobe fairly strong; spines of ninth tergites 



long fitchii Felt & Young 



Spine of basal lobe weaker; spines of ninth tergites long, 



mimesis Dyar 

 Spine of basal lobe much weaker; spines of ninth tergites 

 very long palustris Dyar 



7. Filament of claspette with a broad expansion the whole 



length ; basal lobe highly conical, with strong spine, 



riparius Dyar & Knab 



8. Filament of claspette short and smoothly widened ; basal 



lobe moderate, with very strong spine, 



grossbccki Dyar & Knab 



9. Filament of claspette long, angularly widened at middle ; 



basal lobe moderate, with strong ?,^mt. .squamiger Coquillett 



SERIES 1 

 Species 1 



Aedes excrucians excrucians Walker. 



Culex excrucians Walker, Ins. Saund., Dipt., 429 1856. 



Culex excrucians Giles, Gnats or Mosq., 260, 1900. 



Culex cantons Dyar (not Meigen), Proc. Ent. Soc. Wash., vi, 



38, 1904. 

 Culex cantons Dyar (not Meigen), Journ. N. Y. Ent. Soc, vii, 



36, 1904. 

 Culex cantons (No. 1) Dyar & Knab (not Meigen), Proc. Ent. 



Soc. Wash., vi, 143, 1904. 

 Culex abfitchii Felt, Bull. 79, N. Y. State Mus., 381, 1904. 

 Culicado abfitchii Felt, Bull. 79, N. Y. State Mus., 391c, 1904. 

 Culex siphonalis Grossbeck, Can. Ent., xxxvi, 332, 1904. 

 Culex abfitchii Dyar, Journ. N. Y. Ent. Soc, xiii, 29, 1905. 

 Culicada abfitchii Felt, Bull. 97, N. Y. State Mus., 475, 1905. 

 Culex excrucians Blanchard, Les Moust., 312, 1905. 

 Culex siphonalis Smith & Grossbeck, Psyche, xii, 16, 1905. 



