94 THE CANADIAN ENTOMOLOGIST 



and inner, the latter the larger; tarsi 5-jointed, without pulvilli. 

 Abdomen with 10 segments; tergites not overlapping the sternites, 

 separated by a well-developed pleural membrane; abdominal stigma- 

 ta on the pleural membrane of segments 1-7, very minute and 

 difficult to see; cerci about as long as the hind tibiae, slender, 

 cylindrical, 8-jointed; ovipositor exserted, composed of 3 pairs of 

 elongated processes or valves, the upper pair slightly longer, the 

 middle pair slightly shorter than the lower pair; inner valves ex- 

 posed in lateral view, each valve fitting into a groove on the corres- 

 ponding valve of the lower pair, but not connected with the upper 

 pair. 



Grylloblatta campodeiformis, n. sp. 



Body uniform honey-yellow, covered with minute pubescence. 

 Head flattened, rounded, nearly as broad as long, broadest across 

 the eyes, which are ovo-triangular, about as broad as long and 

 distant from the lateral margin by a little less than their transverse 

 diameter; facets about 70, slightly irregular in size and arrange- 

 ment; antennae reaching back to about the hind margin of the 

 metathorax, filiform, very slightly tapering; first segment somewhat 

 flattened, about two-thirds as wide as the eye and as long as segs. 

 2-3, which are together equal to segs. 4,5 and 6, distad of which 

 the segments gradually increase in length to about seg. 16, shorten- 

 ing again slightly towards the apices; clypeus as broad as the space 

 between the middle of the basal joints of the antennae and some- 

 what more than twice as broad as long, lower margin nearly straight ; 

 labrum semi-ovate, the free margin regularly convexly curved; 

 mandibles with a basal, apical and subapical tooth (maxillae and 

 labium, see pi. VI, figs. 5, 6). Pronotum transversely feebly con- 

 vex, slightly longer than broad, anterior margin gently arcuate, 

 posterior margin nearly straight and subparallel, antero-lateral 

 angles slightly rounded, postero-lateral angles rectangulate; a 

 straight transverse groove just behind the anterior margin. Meso- 

 notum scarcely three-fourths as long as the pronotum, somewhat 

 constricted at base, expanding slightly caudad, the straight pos- 

 terior margin somewhat greater than the length, the lateral margins 

 deflected, arcuate in lateral view; postero-lateral angles well 

 rounded. Metanotum almost four-fifths as long as the mesonctum, 

 somewhat less than twice as broad as long, feebly expanding 



