May, 1916] 



Homopterous Studies. Part II 



321 



ABBREVIATIONS. 



A. — Antenna. 



Ab. Spi. — Abdominal Spiracle. 



Ag. — Accessory gland. 



An. — Anus. 



An. t. — Anal tube. 



A. N. — Antennal Nerve. 



a. m. s. — Articulation of the mandibular 



seta. 

 Abd. n. — Abdominal nerve. 

 Br. — Brain. 



BA. — Barrel of salivary pump, 

 ba. — Barbs of mandibular seta. 



C. C. — Circumesophageal commissure. 

 C. — Central muscles of labium. 



c. m. — Circular muscles of labium. 

 Clyp. — Clypeus. 



D. V. — Dorsal valve of ovipositor. 

 E.— Eye. 



E. d. — Ejaculatory duct. 

 Es. — Esophagus. 



E. p. — Entrance to penis, 

 ep. — Epipharnyx. 



G. PI. — Genital plate of male. 

 G. V. — Genital valve of male. 

 F.— Follicle. 

 Fr.— Front. 



F. Res. — Food Reservoir. 

 Hyph. — Hypopharynx. 



i. a. — Invagination of the anterior arms 

 of tentorium. 



i. d. — Invagination of dorsal arms of 

 tentorium. 



i. p. — Invagination of the posterior arms 

 of the tentorium. 



i. V. — Inner valve of ovipositor. 



L. — Lateral muscles of labium. 



lab. — Labium. 



labr. — Labrum. 



lab. ms. — Labial muscles. 



m. a. — Attachment of mandibles to 

 head-capsule. 



mx. a. — Attachment of maxilla to head- 

 capsule. 



md. — Mandible. 



mx. — Maxilla. 



mi. — Midintestine. 



m. p. — Protractor muscles of mandi- 

 bular seta. 



mx. p. — Protractor muscles of maxillary 

 seta. 



m. t. — Mandibular tendon. 



mx. t. — Maxillary tendon. 



Mx. pi. — Maxillary plate. 



M. T. — Main Trunk of tracheal system. 



Mp. T. — Malpighian Tubules. 



m. r. — Retractor muscles of mandibular 



seta, 

 mx. r. — Retractor muscles of maxillary 



seta. 

 O.— Ocellus. 

 O. N. — Ocular nerve. 

 O. T. — Ovarian tubes. 

 Ov. — Ovary. 

 Ovd. — Oviduct. 

 Ovp. — Ovipositor. 

 O. F. — Occipital foramen. 

 Pen. — Penis. 



P. — Plunger of salivary pump. 

 Ph. — Pharynx. 



Ph. m. — Pharyngeal muscles. 

 PI. c. — Plates of Clypeus. 

 Pyg. — Pygofer. 

 pps. — Protractor muscles of salivary 



pump, 

 prs. — Retractor muscles of salivary 



pump. 

 R. — Rod of plunger. 

 Rec Sem. — Receptaculum Seminorum. 

 Rec — Rectum. 

 S.— Seta. 



sg. — Salivary gland, 

 sd. — Salivary duct. 

 Subg. — Subesophageal ganglion, 

 s. p. — Salivary pump, 

 sd. h. — Salivary duct to Hypopharynx. 

 Sus. — Suspensor. 

 T.— Tendon. 



T. Spi. — Thoracic spiracle. 

 Tes. — Testis. 

 Tg. — Thoracic ganglion, 

 ta. — Arms of tentorium, 

 tb. — Body of tentorium, 

 ts. — Tentorial support. 

 tr. — Trachea, 

 v.— Vertex. 



VV. — Ventral valve of ovipositor. 

 Vag. — Vagina. 

 V. D. — Vas Deferens. 



