82 



Annals Entomological Society of America [Vol. IX, 



TERMINOLOGY. 



The sub-figures 1, 2, and 3 indicate that the sclerites belong to the pro-, meso- 

 and metathorax respectively. 



a — sclerite attached to base of head in 



Periplaneta. 

 aba — anterior basalar. 

 ac — antecoxale. 

 ad — apodeme. 

 ap — apophysis, 

 atn — antetrochantin. 

 ba — basalar sclerites. 

 cm — coximarginal sclerite. 

 cs — cervical sclerite. 

 ex — coxa. 



cxp — coxal process, 

 dcs — dorsal. cervical slcerite. 

 el — elytra, 

 em — epimeron . 

 es — episternum. 

 esp — anepi sternum, 

 f — furca. 



f s- — f urcasternite . 

 g — suture dividing episternum into 



two regions. 

 h — hal teres. 

 i — intersegmentalia. 

 inplt — inner pleurotergite. 

 iplt — inferior pleurotergite. 

 kem — katepimeron. 

 Ics — lateral cervical sclerite. 

 m — meron. 

 mp — meropleurite. 

 msn — mesonotum. 

 msst — mesosternum. 

 mt — mediotergite . 

 mtn — metanotum. 

 mtst — metastemum. 

 o— suture dividing episternum and 



precoxale in Periplaneta. 

 oplt — outer pleurotergite. 



pba — posterior basalar sclerite. 



pc — precoxale. 



pem — postepimeron. 



pes — pre-episternum. 



pfs — postfurcasternite. 



pla — pleural arm. 



pic — pleurocoxale . 



pis — pleural suture. 



pit — pleurotergite. 



pltn — pleurotrochantin. 



plwp — pleural wing process. 



pn — pronotum. 



prs — presternite. 



prsc — prescutum . 



psl — postscutellum . 



ptn — post-trochantin. 



ptp — pteropleurite. 



sa — subalar sclerite. 



sc — scutum. 



scsl — scutoscutellum . 



si — scutellum. 



sp — spiracle. 



spa — abdominal spiracle. 



spplt — superior pleurotergite. 



ss — spinasternite. 



stc — stemocoxale . 



stp — stemopleurite . 



tm — tergum. 



tn — trochantin. 



tnl — trochantinelle. 



tnm — trochantin major. 



vcs — ventral cervical sclerites. 



vex — veracoxa. 



vs — verasternite. 



w — wings. 



1st a — 1st abdominal segment. 



