[NSECUTOR INSCITI^ MENSTRUUS 193 



A female, Palmarito, Colombia, February 13, 1922 (Dr. F. .A. 

 Miller), may belong here. 



Psorophora confinnis Lynch Arribalzaga. 



This species was discussed in the monograph (Howard, Dyar 

 & Knab, Mosq. No. & Cent. Am. & W. I., iv, 599, 1917) under 

 cingulatus Fab., and compared with that species and neoapicalis 

 Theob. Both of these species have wholly dark wirig-scales and 

 a narrow white ring on the proboscis. Arribalzaga's description 

 is silent as to the color of the wing-scales, but he emphasizes 

 the broad white ring of the proboscis. Specimens before me 

 from the Mulford Biological Expedition, Rosario, Bolivia 

 (W. M. Mann), show this character, but have the wing scales 

 black and white. Taken with this form was a typically Argen- 

 tine fauna, and it is therefore thought correct to identify the 

 species as being the true confinnis of Lynch. It is a small 

 Psorophora of the jamaicensis group, near funiculus Dyar ; but 

 unfortunately no males are at hand to indicate its exact rela- 

 tionship. The species has recently been recorded from Para- 

 guay (Edwards, Bull. Ent. Res., xiii, 75, 1922). 



Aedes euiris, new species. 



In describing Acdes iridipennis (Ins. Ins. Mens., x, 92, 1922) 

 I mentioned a second specimen from Bogota, Colombia, which 

 might not be conspecific. The type of iridipennis from Arizona 

 proves to be not distinct from Aedes muelleri Dyar of Mexico ; 

 but additional material of the Colombian form shows that the 

 distinctions noted are constant. It is therefore described under 

 the above name. 



Proboscis black. Mesonotum with sparse golden yellow 

 scales, mixed with black ones, indefinitely defining two central 

 lines and a patch on each side before ; scales on pleura white. 

 Abdomen black, with white bands at the bases of the segments, 

 that on the second .segment triangular, the bands not widened 

 on the sides ; venter white, with narrow black bands at the 

 apices of the segments. Legs entirely black, except the femora, 



