32 THE CANADIAN ENTOMOLOGIST. 



lateral carinse well developed, but little divergent. Pronotum broadening 

 slightly on posterior half, (more noticeable in the ? ) ; median carina 

 distinct and equal throughout, the transverse sulci scarcejy noticeable in 

 the $ , distinct but shallow in the ($ ; the lateral carinae present but 

 rounded obtusely off; the disk and sides of posterior lobe densely and 

 rather coarsely punctate. Tegmina oblong, two and a-half times as long 

 as broad, reaching to middle of abdomen and slightly over-lapping on the 

 median dorsal line, the wings but little shorter. Last ventral segment of 

 the abdomen of ^ broader than high, tumid posteriorly, the lateral edges 

 higher and flaring slightly outwards. Cerci long and slender, gently 

 incurved, narrowed at the middle, with the apical third flattened and 

 slightly hollowed on the exterior face. 



Colour of living specimens : — Male — Antennae rufous, infuscated at 

 tip, and with the apical sixth of each segment yellowish. Face green, 

 clypeus and mouth parts yellow. Vertex, disk of pronotum and tegmina 

 plain olive, immaculate. Lateral lobes of pronotum greenish-yellow 

 below ; above with a broad, shining, black line reaching from the 

 eye to their posterior edge. The venter pale yellow, and the meta-pleural 

 episterna with an oblique yellow line. Femora green ; knees black ; 

 posterior tibiae greenish, rufous at base, with black spines. 



Female — Duller; the disk of pronotum and tegmina sometimes with 

 minute fuscous spots ; a black stripe on the sides of abdomen, above 

 which are numerous small black blotches. 



Measurements :— Length of body, S 22 mm., $ 31 mm.; of 

 antennai, S ^5 mm., ? 11 mm.; of tegmina, ^ 10 mm., ? 13 mm.; 

 of hind femora, i 14 mm., ? 17.5 mm. 13 (?'s, 11 ? 's. 



About the margin of the pond above mentioned, this Pezotettix was 

 found in numbers on October 17th. It was at once noticeable on account 

 of the length of the male antennae, and the black stripes on the sides of 

 the abdomen of the female. The pond was almost dry, and the dense 

 growth of sedges and rushes which had filled its shallow margins, were, in 

 some places, burned away. Over the burned spots had sprung up a 

 dense green vegetation, and here this Pezotettix flourished in company 

 with Truxalis brevicornis and Chrysochraon viridis, while a iow feet 

 away Leptysma marghiicolli?. found a suitable home amongst the rushes 

 and sedges still standing. 



Both sexes of P. hoosieri were very active, leaping vigorously when 

 approached, and difficult to capture except by throwing the net over 



