l6 ENTOMOLOGICAL NEWS. [Jan., '17 



Table for the Identification of the common species of Canal Zone 

 Anopheles. 



i Hind legs with white feet 2 



Hind legs long and dark colored without white feet or white 



markings A. pseudopunctipemns 



Hind legs without white feet, but with white band at middle of 



leg (white knee) A. eiscni 



Hind legs without white feet but with all three pairs of legs 

 covered with white spots and narrow white bands (having a 



freckled appearance) 3 



2 White feet with a narrow black band near the end 4 



White feet without a narrow black band near the end, 



A. argyritarsis 

 3 With black spot, or patch of black scales, at extreme, or apical, 



end of wing A. apicimacula 



Without a black spot, or patch of black scales, at extreme, or 



apical, end of wing A. malefactor 



4 Female with tip, or apical end, of palpi white, separated from a 

 narrow white band by a wide black band. The separating 

 black band is more than twice as wide as either the white tip 



or the proximal white band A. albimanus 



Female with tip, or apical end, of palpi white, separated from a 

 wide white band by a narrow black band. The separating 

 black band is less than half as wide as either the white tip or 

 the proximal white band A. tarsimactilata, 



But one specimen of A. gorgasi has been found on the Isth- 

 mus so far, and during the five years that I have been at the 

 Laboratory I have not received any specimens of either 

 A. punctimacula or A. crnzii in either the larval or adult 

 forms. A. franciscanus is so few in numbers that it is prac- 

 tically nil, therefore owing to the fact that these four species 

 are so seldom encountered I have not included them in the 

 foregoing table, as doing so would only make the table more 

 difficult for a beginner to understand, and in this case not in- 

 crease its value for practical work. 



Anopheles pseudopunctipennis. 



A few words of explanation may serve to assist in verify- 

 ing the identifications of the different species as made by this 

 table. Beginning with A. pseudopunctipennis , which is about 

 the easiest to identify, it can be seen that it is the largest of 

 the seven species of Anopheles, and has very long legs. All 



