142 INSECUTOR INSCITLl' MENSTRUUS 



allowance being made for variation in the scale-characters. 

 Used subgenerically, undue emphasis need not be laid upon 

 them. 



The subgenera occurring in America tabulate as follows : 



Thorax and abdomen hairy, no scales. 

 Head with upright scales only. 

 Wing-scales lanceolate. 



Thorax short, not over twice as long as wide, 



Coclodiasesis Dyar & Knab 

 Thorax more elongate. 



Hairs of mesonotum diffused Anopheles Meigen 



Hairs in lines between broad bare spaces, 



Dcndropaedium Dyar & Knab 

 Wing-scales in part large and inflated, 



Cycloleppteron Theobald 



Head with fiat scales in the median area Stethomyia Theobald 



Thorax hairy or with a few scales on the margin ; abdomen with scales. 

 Abdomen hairy dorsally with lateral scale-tufts, 



Ari'ibalsagia Theobald 

 Abdomen with large irregular black scales ; no tufts, 



Kerteszia Theobald 

 Thorax with distinct narrow curved scales. 



Abdomen hairy, or with scales only on the anal segment. 



Antennae hairy Mysorhynchella Theobald 



Antennae with scales at the whorls Chagasia Cruz 



Abdomen hairy, the last three segments scaled; no tufts, 



Manguinhosia Cruz 

 Abdomen scaled in part or throughout and with lateral tufts, 



Cellia Theobald 



Genus ANOPHELES Meigen 



Subgenus COELODIAZESIS Dyar & Knab 



Coelodiasesis Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 177, 



1906. 

 Cyclophorus Eysell, Arch. Schiffs-u. Trop.-Hyg., xvi, 421, 1912. 



Anopheles (Coelodiazesis) barberi Coquillett. 



Anopheles barberi Coquillett, Can. Ent., xxxv, 310, 1903. 



Eastern United States, the larvse in tree-holes. 



Subgenus ANOPHELES Meigen 

 Anopheles Meigen, Syst. Beschr. bek. eur. zweifl. Ins., i, 10, 1818. 



