256 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. 



Sternum with a short setose ridge in front of each coxa; legs 

 hairy, the first two segments of the hind tarsi equal in length; 

 wing-cases in full-grown nymphs extending to the seventh abdom- 

 inal segment or caudal margin of 6, barely to 6 in some apparently 

 full-grown specimens. 



Abdomen : elongate ; dorsal hooks present on segments 3-5 or 6 

 inclusive ; 7-9 frequently hairy on dorsum but without hooks ; 

 lateral keels with short spines on segments 8 and 9, the spines 

 about one-seventh as long as the segment (one-fourth in young 

 nyrnphs) bearing them; lateral terminal appendages about half 

 as long as the superior. 



Measurements: total length, 21-23 rnm. ; length of abdomen, 

 II -1 3 mm. ; greatest width, 7 mm. ; length of metathoracic wing- 

 cases, 5 mm. ; length of hind femora, 4.5 mm. ; length of median 

 lobe of mentum, 3.5 mm.; width 1.5-4 mm. 



A partly grown nymph has the following dimensions ; total 

 length, 13 mm.; length of abdomen, 8 mm.; greatest width, 

 3 mm.; length of metathoracic wing-cases, 1.5 mm.; length of 

 hind femora, 5 mm. ; length of medial lobe of mentum, 4 mm. ; 

 width 4 mm. 



Adult, male (PI. xxi. Fig. i). — Color brown and buff, abdomen 

 frequently pollinose. 



Head : labium and labrum light brown, clypeus and front 

 slightly darker, vertex and occiput still darker, approaching black ; 

 occiput with two to three yellow spots on each side near caudal 

 margins of the compound eyes and two closely placed spots on the 

 meson ; front much wrinkled and vertex projecting over the 

 median ocellus in two lobes. 



Thorax : prothorax brown, caudal margin entire and with but 

 few setae ; remainder of thorax brown, with light-colored stripes 

 from the base of hind wings to the mesokatepisternum, and 

 another just above the lateral carinae on the metepimera; dorsal 

 half of the mesokatepisternum pale ; thoracic venter, brown ; legs 

 brown, the femora conspicuously flattened beneath, the latero- 

 ventral margins both with heavy setae on all ; front coxae flattened 

 and with a fringe of hairs on the mesal margins ; front and middle 

 femora with two dorsal carinae each ; tarsal claws much thickened 

 at base, each with a lateral puncture, the ventral tooth beyond 

 middle of the claw; wings with a brown dash between subcosta, 

 tip of triangle and cubitus, and a wide cross-band beginning at 

 the nodus and extending to the middle of the stigma. 



Abdomen : depressed, not compressed, the segments gradually 

 narrowed behind the third, color brown becoming pollinose ; light- 

 colored spots on terga 3-9 just above the lateral carina; venter 

 brown, the first segment with two hooks; hamules (Fig. 63, 

 No. 12) consisting of a broad lateral lobe and mesal hook separated 

 by a shallow rounded notch. 



