114 INSECUTOR INSCITI^ MENSTRUUS 



DESCRIPTION OF THE LARV^ OF WYEOMYIA 

 APHOBEMA DYAR 



(Diptefa, Culicid(E) 

 By J. BONNE-WEPSTER and C. BONNE 



Head rounded. Antennae moderate, uniform, smooth, a 

 single hair outwardly placed. Upper head hairs in threes, 

 lower in twos, ante-antennal hairs in fives, ante-clypeal hairs 

 in twos. 



Lateral comb of eighth segment in a patch. Air-tube slightly 

 attenuated near the base, but widened at the middle. False 

 pecten of numerous spines over the whole length of the tube, 

 irregularly placed in longitudinal rows; single hairs on tube 

 and some two-haired tufts, basal ones longest. 



Anal segment longer than wide, plate large, well down the 

 sides. Subdorsal hairs in twos, lateral hair single, subventral 

 tuft small, multiple. Anal gills longer than segment. 



The number of the head hairs was in some of the specimens 

 different ; the ante-antennal hairs having one or two less, the 

 upper head hairs in twos or fours, or the lower in threes. 



Larvae found in Bromeliacese near Paramaribo, Surinam, 

 August 1918, in sandy district of the colony (March, 1918) ; 

 and in the interior of the colony, Lawa River (March, 1917), 

 and Sarah Creek (January, 1919). 



A REVISION OF THE AMERICAN SABETHINI OF 



THE SABETHES GROUP BY THE MALE 



GENITALIA 



(Diptera, Culicidce) 



By HARRISON G. DYAR 



The tribe Sabethini divides into two groups on the character 

 of the male structure. The Joblotia group has a simple, primi- 

 tive structure and requires no further elucidation than given 

 in the monograph. The Sahethes group, however, has the 

 structures complicated and the species numerous. I have 



