270 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



anterior angle, 1 exterior frontal seta and 1 anterior frontal seta. 

 First two antennal segments approximately equal in length, third 

 segment greatly reduced in diameter (pi. 7, fig. 2) and slightly over 

 half the length of the second segment.?^ 2-'^^^^dib^^s (pi. 7, figs. 13, 14) 

 and maxillae (pi. 8, fig. 3) similar to those of blackburnii except for 

 the maxOlary stridulating area which consists of a row of 8 to 10 conical 

 teeth on each stipes and a short row of 3 teeth along the posterior 

 margin of the palpifer. Hypopharynx (pi, 8, fig. 3) with asymmetri- 

 cal oncyli differing in shape from those of blackburnii (pi. 8, fig. 2) 

 and excrementi (pi. 8, fig. 5). Before the hypopharynx is a row of 

 about 10 sensillae on each side, separated medially by several setae. 

 The setae are part of a small group of 7 or 8 median setae just an- 

 terior to the row of sensillae (pi. 8, fig. 3). Glossa emarginate. 

 Epipharynx (pi. 8, fig. 1) quite similar to that of blackburnii. Torma 

 united mesally, posterior epitorma slightly larger than anterior 

 epitorma. Anterior to the pedium are about 12 very irregularly 

 placed stubby setae (much shorter than the uTcgular row of 6 setae 

 in blackburnii or the even row of 7 or 8 setae in hornii). 



Body shape and setal arrangement similar to blackburnii. All legs 

 with tuberculate tips bearing small brown claws identical to those of 

 blackburnii, as are the position and number of stridulatory teeth on 

 metathoracic legs. Endoskeletal figure of last abdominal segment 

 ventrad of triangular area not quite as constricted as that of black- 

 burnii, but very similar otherwise. 



Egg yellowish white, oval, largest near one end, 4.5 mm. in length, 

 2.4 mm. at greatest width. 



First instar, greatest width of head capsule 2.5 mm. Setal patterns 

 of head and abdomen and leg structm-es similar to that described for 

 third instar. Mandibles more elongate, endoskeletal structure of 

 anal lobes rather indistinct, apparently quite similar to that of third 

 instar. Spiracular plates, large and crescent-shaped in later stage, 

 are small and circular in the first instar. 



Second instar, maximum width of head capsule 3.1 to 3.3 mm., 

 otherwise structurally similar to third instar. 



Specimens examined: 562 males, 433 females. 



CANADA 



ONTARIO: 2 females. Toronto; (2) June. 

 QUEBEC: 2 females. Nominingue. 



UNITED STATES 



ALABAMA: 2 males, 1 female. Blount Springs, "Felix (Perry County)," 



Tuscaloosa County; (2) August. 

 ARIZONA: 1 female. Snowflake [? doubtful record]. 

 ARKANSAS: 1 male. Osceola; (1) August. 



