58 American Midland Naturalist Monograph No. 3 



lateral in position, larger than outer clypeal (3); frontal hairs (5-7) small, 

 simple; sutural (8) and trans-sutural (9) small, simple. Antenna dark, rather 

 short, glabrous; terminal hair (10) simple, more than twice the length of 

 the sabres; antennal tuft (11) represented by a small, simple hair inserted 

 near the middle of shaft. Thorax: Integument sparsely spiculate. Prothoracic 

 dorsal submedian hairs (1-3) with inner hair (1) long, usually sparsely 

 feathered (feathering may be weak or strong and may be distributed along 

 shaft or restricted to apex); middle hair (2) somewhat longer than inner 

 hair (1), with many branches; outer (3) short, simple. Prothoracic pleural 

 group (9-12) of four hairs; hair 9 long, barbed; hairs 10 and 12 long, simple; 

 hair 11 minute. Mesothoracic pleural group (9-12) of four hairs; hair 9 long, 

 barbed; hair 10 long, simple; hair 11 obsolete; hair 12 short, simple or branched 

 apically. Metathoracic pleural group (9-12) of four hairs; hair 9 long, barbed; 

 hair 10 long, simple; hair 11 obsolete; hair 12 short, simple or branched 

 apically. Metathoracic palmate hair (1) obsolete. Abdomen: Submedian dor- 

 sal hair (0) obsolete. Palmate hair (1) rudimentary on segment I, well- 

 developed on segments II to VII; individual leaflets with serrations beyond 

 middle. Antepalmate hair (2) long, branched apically, inserted lateral to 

 palmate (1). Lateral hair (6) long, plumose on segments I to VI (lateral 

 branches fine and short) . Pecten as illustrated. 



DISTRIBUTION. — Eastern United States, west to Kansas; Mexico (158). 

 Southern States: Alabama (170); Arkansas (30); Florida and Georgia (96); 

 Kentucky (140); Louisiana (96); Mississippi (52); Missouri (70); North 

 Carolina and South Carolina (52); Tennessee (170); Virginia (49). Other 

 States: Indiana (39); Maryland (52); New Jersey (94); New York (116); 

 Oklahoma (159); Texas (108). 



BIONOMICS. — Thibault (179) states that the adults enter dwellings and 

 are persistent biters, but are easily disturbed while in the act of feeding. 

 Adults of this species are frequently taken in resting station and light trap 

 collections. Larvae occur in rot cavities in trees and occasionally in artificial 

 wooden receof-acles. The larvae usually dive when d'sturbed but soon rise to 

 the surface where they are easily seen and recognized because of their shiny- 

 black appearance. 



MEDICAL IMPORTANCE. — This species has been infected in the laboratory 

 with Plasmodium vivax but no data are available as to its infection in nature. 

 It is a rare species and the available evidence indicates that it is unimportant 

 as a natural vector of malaria. 



Anopheles (Anopheles) crucians bradleyi King 



Anopheles crucians var. bradleyi King, 1939, Amer. Jour. Trop. Med., 19:468. 



ADULT FEMALE. — Practically identical with A. crucians crucians, but fre- 

 quently has stem of vein 5 entirely white-scaled (Fig. 28). 



ADULT MALE. — Coloration similar to that of female, but with only two 

 dark spots present on vein 6. TERMINALiA. — The terminalia is very similar to 

 that of A. crucians crucians (Fig. 30). 



