Redescription of Aedes (Ochlerotatus) camposanus Dyar (1918) 
as a Valid Species Found in the Coastal Plain of Ecuador 
Roberto Levi-Castillo^ 
During the rainy season of 1950-51 the 
author collected a great deal of mosquito 
material near Guayaquil. Among the speci- 
mens taken from light traps were the male 
specimens of a species apparently unknown 
in the fauna of Ecuador. The specimens were 
sent to the United States National Museum in 
Washington and were determined as Aedes 
{Ochlerotatus) eupoclamus Dyar and Knab, 1906. 
The author became doubtful of this identi- 
fication as the male terminalia would not 
comply with the known descriptions of A. 
eupoclamus and asked for a slide specimen of 
this species from its type locality, Costa Rica. 
By courtesy of Dr. Alan Stone, a slide was 
obtained from the collection of the U. S. 
National Museum, and it was possible to 
make a comparison, which showed that, al- 
though the Ecuadorian specimens could be 
easily confused with A. eupoclamus, the 
claspettes, tenth sternites, and mesosomae 
were different. The Ecuadorian specimens 
proved to be a species described by H. G. 
Dyar (1918: 128) from specimens collected in 
Guayaquil. The types, male and female, are 
listed under No. 21916 in the U. S. National 
Museum collection, with the original name 
of Aedes {Ochlerotatus) camposanus Dyar. This 
species is very similar to A, (0.) scapularis 
Rondani and to A. (0.) eupoclamus Dyar and 
Knab, but it does not show a small retrorse 
filament in the claspette. 
This species was named in honor of Pro- 
1 Director, Ecuadorian Center for Entomological 
Research, Guayaquil, Ecuador. Manuscript received 
December 11, 1951. 
fessor Francisco Campos Rivadeneira, of 
Guayaquil, Ecuador, who submitted the 
specimens to Dyar in 1918. 
Aedes (Ochlerotatus) camposanus 
Dyar, 1918 
female: Proboscis dark with white spots. 
Palpi small, dark, with small silvery white 
spots. Occiput with dark integument and 
white erect scales; borders of eyes with same 
erect white scales and a few dark setae. Ver- 
tex with silvery white scales and a few dark 
setae, which form a tuft overhanging the 
clypeus. Neck with silvery white elongate 
scales. Pro thoracic lobes showing tufts of 
silvery white scales and setae, with the in- 
tegument olive-colored with freckle-like silver 
spots. Mesonotum showing a wide gray band 
in the middle, extending from pronotum to 
prescutellum, divided in the middle by a dark 
line and limited laterally by 2 black lines end- 
ing at the prescutellum with a tuft of white 
scales. Pronotum with tufts of white and 
light brown scales on each side and to center. 
Disc revetted with light brown and white 
scales and silvery setae. Prescutellum showing 
a large gray spot which becomes larger toward 
the scutellum, formed by white scales and 
silvery setae. Scutellum showing 3 lobes, the 
2 lateral ones light brown with dark setae, the 
middle one with silvery white scales and 
setae; 2 dark spots in intersection of lobes. 
Pleurae and coxae revetted with small tufts of 
silvery white scales and setae with light brown 
integument with freckle-like silver spots. 
Coxae showing small silvery white tufts in 
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