Manchester Memoirs, Vol. xlii. (1898), No. 11. 29 



covered with white hair ; the trochanters, apex of femora, 

 tibiae, and tarsi rufo-testaceous. Petiole as long as the 

 hinder coxa^ ; coarsely shagreened, the sides distinctly 

 margined ; beneath, it is prolonged to the apex of the second 

 segment ; the base of the third segment being obliquely 

 truncated beneath, it forms, with the apex of the petiole, a 

 wide, triangular incision. The rest of the abdomen smooth 

 and shining ; the apex without a pygidial area. 



In some respects this species is intermediate between 

 Peviphredon and Passaloeais, its petiole being longer 

 than it is in the latter, but much shorter than in 

 the former, from which it further differs in the hinder 

 tibiae not being spined ; in the head not being covered 

 with long hair ; in the margined eyes, in the vertex 

 and hollowed front bearing keels ; and in the median 

 segment having keels which form large distinct arese, 

 the lower part of the segment, too, being largely and 

 deeply hollowed. The labrum is not emarginate at the 

 apex, so far as I can make out from the dense silvery 

 pubescence which covers the mouth ; the mandibles are 

 large, not furrowed ; oblique at the apex, where there is 

 one large, acute tooth, and a much smaller and blunter one, 

 next to it. The eyes reach to the base of the mandibles 

 and are parallel ; the antennae are situated quite close to 

 the base of the clypeus, but not touching it ; the transverse 

 basal nervure is interstitial ; on the mesopleurai there is 

 one di.stinct, moderately wide and deep, complete, longi- 

 tudinal furrow. The second cubital cellule is much 

 narrower than it is in either PempJiredrori or Passaloecus 

 proper, and is much narrowed on the lower side ; the 

 stigma is large ; the radial cellule elongate, lanceolate ; 

 in the female, there is no pygidial area. The tubercules 

 do not reach to the tegulae. 



This species, having only one longitudinal furrow on the 

 mesopleurjie, is a Passaloecus as limited by Verhoeff {^Ent. 



