542 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Genitalia: the terminal parts of the abdomen used in reproduction, including 
the appendages, modified segments, copulatory and egg-laying organs. 
Glabrous: smooth, faintly shining, free from hairs or pubescence. 
Gonapophyses: the three pairs of chitinous processes making up the ovipositor 
and egg-guide. 
Gula: throat; the ventral sclerite of the head, bounded in front by the sub- 
mentum, on the sides by the genae, and extending to the hinder margin 
of the head. 
Habitat: the entire region naturally inhabited, or the particular type of 
environment characteristically inhabited, by an organism. 
Habitus: the general aspect or appearance. 
Halophile {-ous): salt-loving; restricted to salt-marshes or the proximity of 
the sea. 
Hind process of pronotum: the backward-projecting part of the disk or upper 
surface of the pronotum. 
Humeral carinae of pronotum; humero-apical c: in some Acrydiinae arise on 
the disk of the pronotum and run backward, forming the dorso-lateral 
angles of the hind process. 
Imago: the adult or fully mature insect. 
Immaculate: lacking spots or marks. 
Infra-cereal plates: the podical plates, q. v. 
Infu^cated: more or less tinged with dusky or black. 
Inner: toward the center, or median plane, e.g., the inner face of the leg. 
Insertion: the point or place where a part is inserted or attached, e.g., anten- 
nae or legs. 
Intercalary: added, or inserted between others, e.g., intercalary vein. 
Internal: inner, toward the median plane. 
Interspace: the median space lying between the posterior lobes of the meso- 
sternum and metasternum and occupied by parts of the metasternum and 
first abdominal segment respectively. 
Joint: a segment or part between two movable articulations; a movable union 
or articulation between two consecutive parts. 
Jugular sclerites: small sclerites in the membrane connecting the head and 
thorax. 
Knee: the point of junction of femur and tibia. 
Labium: the lower lip; the fused 'second maxillae'; a compound median 
organ on the ventral side of the head. 
Labrum: the upper lip; a median sclerite attached to the clypeus and cover- 
ing the base of the mandibles. 
Lacinia: the inner apical lobe of the maxilla. 
Lanceolate: lance-shaped; tapering to a point apically. 
Lateral carinae of head: ridges on the face extending dowTiward from the eyes. 
Lateral carinae of pronotum: ridges separating the disk from the lateral lobes 
of the pronotum; usually distinct in the Slant-faced Locusts, more or less 
vestigial in the Band-T\inged and Spine-throated groups. 
Lateral lobes (of pronotum): the defiexed sides of the pronotum below the 
lateral carinae. 
