VIII] TRIBE ANOPHELIN.E 77 



III. Thorax covered with true scales. 



a. No scales on abdomen. 



Head scales of ordinary type . . . . Pyretophorus. Blanchard. 

 Head scales rather flattened . . . . Myzorhynchella. Theobald. 



b. Scales on last few segments of abdomen only 



Nyssorhynchus. Blanchard. 



c. Many scales on abdomen but no lateral tufts 



Neocellia. Theobald. 



d. Lateral scale tufts as well as other scales on the abdomen. 



Cellia. Theobald. 



In addition there are genera represented by only one 

 or two species. Thus there is Feltinella Theobald, near 

 Patagiamyia, for F. pallidopalpi Theo. (basal lobes of male 

 genitalia jointed) ; and Lophoscelomyia Theo. for L. asiatica 

 Leicester, a peculiar species with scale tufts on the femora, 

 also related to Patagiamyia. Near Myzomyia come Pseudo- 

 myzomyia Theo., for P. rossii Giles 1 , and Neomyzomyia Theo., 

 for N. elegans James. Kerteszia Theo., for K. boliviensis Theo., 

 and Manguinhosia Cruz, for M. lutzi Cruz, are also genera 

 without scales on the thorax, but with scales on the last segments 

 of the abdomen. Both are of new world distribution. Near 

 Neocellia, but with a complete row of ventral scale tufts, is 

 Christopher sia James, for Ch. kochii Donitz, and near Nyssorhyn- 

 chus, but with outstanding scales on the antenna, is Calvertina 

 Ludlow, for C. lineata Ludlow. Very peculiar genera are 

 Christy a Theo., for C. implexa Theo., an immense Anopheles 

 with long lateral tufts of hair-like scales on the abdomen, 

 Chagasia Cruz, for C. fajardoi Cruz, a species with Culex-like 

 attitude, and Arribalzagia Theo., for A. maculipes Theo., and 

 two other species of elaborately ornamented and very large 

 Anophelines from Brazil. The genus Bironella Theo., for 

 B. gracilis Theo., a species known only from a single male 

 specimen, has very short forked cells. It is not quite certain, 

 however, that it is an Anopheline. 



Edwards sinks all these genera excepting Bironella under 

 Anopheles Meigen, maintaining that the differences in scale 



1 M . rossii Giles is the type species of Myzomyia. Therefore the forma- 

 tion of a genus Pseudomyzomyia having M. rossii as the type species is not 

 allowable. 



