50 



Annals Entomological Society of America [Vol. XIII, 



REFERENCE LETTERING. 



Ai, A2, etc. — Abdominal segments. 



Aljd. — Abductor muscle. 



Ad. — Adductor Muscle. 



A. L. — Lateral apodeme of the dorsal 



border of the occipital foramen, 

 a. 1. — Anterior valve of the spiracle. 

 A. M. — Median dorsal apodeme of the 



base of the head. 



a. n. p. — Anterior notal wing process, 

 ant . — Antenna . 



ant. fl. — Anterior flexor of the femur, 

 ap. — Apodeme. 



b. s. — Basalar sclerite. 



Ci, C2. — Cardo, first and second seg- 

 ments. 

 Cerv. — Veracervix or neck region. 



c. hyp.^The compressor of the hypo- 



pharynx, 

 c. m. — Constrictor (circular) muscles of 



the digestive tract. 

 Cox. — Coxa. 

 Cs. — Cercus. 



c. t. — Chitinous thickening of the 



tracheal wall, 

 di, d2. — Internal dorsal processes of the 



dorsal and ventral gonapophyses 



respectively, 

 dep. — Depressor muscle. 



d. m. — Dilator muscle. 



d. sp. — Dilator of the spiracle. 



el. — Elevator muscle. 



Em. — Epimeron. 



Ep. — Epistemum. 



ep. — Entopleurite. 



Eph . — Epipharynx . 



eph. m. — Epipharyngeal muslce. 



es. — Lateral entosternite (furca). 



es. m. — Median entosternite (spina). 



ext. — Extensor muscle. 



ext. a. s. — Extensor of the antennal seg- 

 ment. 



■ext. p. s. — Extensor of the palpal seg- 

 ment. 

 . F. A. — Anterior foramen of head. 



fem. — Femur. 



F. L. — Lateral foramen of head. 



fi. — Flexor muscle. 



fi. a. s. — Flexor of the antennal segment. 



fl. g. — Flexor of the galea. 



fl. p. — Flexor of the palpus. 



fl. p. s. — Flexor of the palpal segment. 



F. O. — Occipital foramen. 

 Fs. — Furcasternite. 



G. — Gena. 

 Gal. — Galea. 



G. D. — Dorsal gonapophysis. 

 Gl. — Glossa. 



G. V. — Ventral gonapophysis. 



hyp. — Hypoph arynx . 



ini. in2. — Intersegmentalia. 



i. p. — Interpleurite of the veracervix, 



i. St. — Intersternites of the veracervix. 



i. tg. — Intertergites of the veracervix. 



Lac. — Lacinia. 



Lb, lb. — Labium. 



Lbr., Ibr. — Labrum. 



1. d. — Lateral dilator of tlie oesophagus. 



m. ant. — Antennal muscles. 



Md., md.— Mandible. 



Mx., mx. — Maxilla. 



Oc. — Ocellus. 



oc. — Occlusor muscle. 



Oes. — Oesophagus. 



P. Ag, P. A9 — Anterior tergal processes 

 (entotergites) of the eighth and 

 ninth abdominal segments. 



Pcx. — Precoxale. 



P. G. — Postgena. 



Pgl. — Paraglossa. 



Ph. — Pharynx. 



p. 1. — Posterior valve of spiracle. 



PI. mb. — Pleural membrane. 



p. n. p. — -Posterior notal wing process. 



P. P.— Podical plate. 



p. p. — Pleural wing process. 



pr. d. — Precerebral dilators of oesoph- 

 agus and pharynx. 



P. S. — Suranal plate. 



p. s. — Pleural sclerites of abdomen. 



Pscl. — Postscutellum. 



P. S. G. — Process of the supragenital 

 plate. 



ps. p. — Parasternal plate. 



pst. d. — Postcerebral dilators of the 

 oesophagus. 



r. hyp. — Retractor of the hypopharynx. 



r. lb. — Retractor of the labium. 



sa. p. — Subalar plate. 



Sc. — Scutum. 



Scl. — Scutellum. 



sp. — Spiracle. 



sp. c. — Spermatophore cup. 



Ss. — Spinasternite. 



St. — -Stipes. 



Stn. — Sternum. 



t. — Tendon. 



T. A. — Anterior arm of the tentorium. 



tar. — Tarsus. 



T. C. — Central plate of tentorium. 



t. c. — Transverse chitinous beam con- 

 necting the ventral processes of the 

 two dorsal gonapophyses. 



tend. — Tendon. 



Tg. — Tergite. 



tib.— Tibia. 



T. P. — Posterior arm of tentorium. 



tr. — Trochantin. 



Troc. — Trochanter. 



ung. — Claws. 



Vi, V2 — Internal ventral processes of the 

 dorsal and ventral gonapophyses, 

 respectively. 



vag. — Vagina. 



vd. — Ventral dilators of the oesophagus. 



Vs. — Verasternite. 



