64 MISC. PUBLICATION 336, U. S. DEPT. OF AGRICULTURE 
_ The external characters and the terminology of the parts employed 
in the descriptions of adult mosquitoes are shown in figures 14, 15, 
and 16. Sipe 
Mesorotun 
Head 7 eK ScuteMurm 
<4 
Z Postorut/7 
Lhe 
a Llesornotiut 
eae Ye ie Se Base of} WING 
Nace | ee ee —Scutel/lu/7 
Ctl) 
3 
FIGURE 15.—A, Composite diagram of thorax of adult mosquito, showing the 
groups of pleural bristles: apn, Anterior pronotal (prothoracic) ; ppn, posterior 
pronotal (proepimeral); ppl, propleural (prosternal) ; sp, spiracular; psp, 
postspiracular; pa, prealar; stp, sternopleural; ume, upper mesepimeral; Jme, 
lower mesepimeral. B, Posterior portion of thorax from above. 
