98 PROCEEDINGS OF THE AMERICAN ACADEMY. 



verse patch above ; occasionally in young individuals these thoracic 

 markings are reduced to a narrow mesial luteous stripe ; the hind fem- 

 ora are similarly speckled in place of the usual markings, though these 

 sometimes prevail. Antennae very slender, probably about twice the 

 length of the body. Legs rather short and not stout. Fore femora 

 no stouter than the middle femora, about a fourth longer than the pro- 

 uotum in the $ , less than that in the 9 , and in both considerably less 

 than half the length of the hind femora, the inner carina with an ex- 

 ceedingly minute preapical spine. Middle femora with 2-3 minute 

 spines (sometimes obsolete in the 9 ) on the front carina, and the hind 

 carina similarly armed besides a small genicular spine. Hind femora 

 stout and broad, the lower margin straight by the posterior elevation 

 of the outer carina almost to the geniculation, when it terminates 

 abruptly and subacutely, as long as the body and about three times as 

 long as broad (<) or stout and broad, normal, about three fourths as 

 long as the body, with a few raised points clustered above the depressed 

 middle line of the femora ( 9 ), the outer carina closely serrulate through- 

 out (^) or simple and ur.armed (9)- Hind tibiae abruptly and con- 

 siderably bent just beyond the base, but still nearly a tenth longer 

 than the femora, beyond the bend nearly straight ( $ ), or straight 

 throughout and similarly longer than the femora (9), beneath with a 

 series of raised points and 12 recumbent subapical spines besides a 

 preapical and apical pair (<J) or with a single subapical spine and an 

 apical pair ( 9 ) ; spurs subopposite, the basal pair situated not far 

 before the middle of the tibia, no longer than the tibial depth, set at 

 an angle of 45 with the tibia and divaricating about 90, their tips 

 incurved ; inner middle calcaria considerably longer than the outer, 

 more than twice as long as the others or as the spurs, but shorter than 

 the first tarsal joint. Hind tarsi about one half the length of the 

 hind tibiae, very slender, the first joint not so long as the rest together, 

 the second fully twice as long as the third, and with it longer than the 

 fourth. Cerci greatly swollen in the basal half, beyond slight, the 

 whole about half as long as the femoral breadth. Ovipositor consider- 

 ably less than two thirds as long as the hind femora, tapering through- 

 out, the tip pointed but hardly upturned, the inner blades obsoletely 

 serrulate with 7-8 elevations. 



Length of body, $ 9 12 mm.; antennae, $ 9 15+ mm.; pro- 

 notum, $ 4 mm., 9 3.5 mm. ; fore femora, $ 5.2 mm., 9 4 mm. ; hind 

 femora, $ 11.5mm., 9 8.9mm.; hind tibiae, $ 12.25mm., 9 9.4mm.; 

 ovipositor, 5.25 mm. 



6 c?, 2 9- Sanzalito, Cal., California, Vancouver Isl., Washington, 



