188 PROC. ENT. SOC. WASH., VOL. 23, NO. 8, NOVEMBER, 1921 



C' first subdivision of C. 



C 2 second subdivision of C. 



C 3 third subdivision of C. 



cen cenchri. 



cl connecting ligament. 



ex coxa. 



cxl coxal lobe. 



cy compound eye. 



D fourth division of the segment a connecting membrane. 



ep epiproct dorsal portion of terminal abdominal segment. 



epm epimeron. 



eps episternum. 



H -head. 



hy hyproproct ventral portion of terminal abdominal segment. 



hyp hypopleurite. 



id imaginal discs embryonic tissue from which adult sclerites and 



appendages develop, 



im intersegmental muscles. 



Ism large segmental muscles, 



ly larval eye or ocellus, 



lys larval eye parts within the head, 



m muscle, 



mb membrane, 



mdm mid dorsum. 



P pleurum. 



par parapterum. 



pea postcallus prominent lobe between anus and postpedes. 



peps preepisternum. 



phrg phragma. 



pn pronotum. 



ppd postpedes legs of the terminal abdominal segment, 



prep preepipleurite. 

 prhyp prehypopleurite. 



prsc prescutum. 



psctl postscutellum. 



psep postepipleurite. 

 pshyp posthypopleurite. 



pspa alar area, 



pt posttergite. 



set scutum. 



S sternum, 



sctl scutellum. 



sp spiracle, 



spa spiracular area, 



ssm small segmental muscles. 



T thorax, 



ter tergum. 



