NEW MALLOPHAGA. 535 



Female. Body, length 1.34 mm., width .5 mm. ; head, 

 length .31 mm., width .44 mm.; thus being little larger 

 than the male; the posterior margin of last abdominal 

 segment is uncolored, more convex than in the male, and 

 bears a fringe of short, fine, transparent hairs. 



Menopon longicephalum n. sp. (Plate lxxiii, fig. 4.) 



One male and one female taken from a domestic 

 Pigeon, Co/umba //via (Lawrence, Kansas). Not at all 

 like the uncommon but long known JMenopon of the 

 Pigeon, giganteum, Denny (Anoplur. Brit., p. 225, pi. 

 xxi, fig. 2), or /alum, Piaget (Les Pediculines, p. 457, 

 pi. xxxvii, fig. 1), but an elongate slender form with 

 head nearly two thirds as long as wide, much like brev- 

 ipes, Piaget (Supplement, 1885, p. no, pi. xii, fig. 1), 

 from Crossopt/lon mantschuricum , or triseriatim, Piaget 

 (Les Pediculines, p. 460, pi. xxxvii, fig. 3), from Gal- 

 Jus bankiva. 



Description of male. Body, length 1.5 mm., width 

 ,66 mm.; elongate, with narrow tapering head and nar- 

 row tapering posterior region of abdomen; whitish, with 

 translucent lateral bands and with inconspicuous head 

 marking's. 



Head, length .31 mm., width .47 mm. ; thus being elon- 

 gate and narrow for Menopon ; front parabolic, with one 

 short hair on each side in front of slightly projecting 

 palpi, and one long hair and two short in front of the 

 shallow ocular signature; emargination with ocular 

 fringe running slightly on temporal margin; temples pro- 

 truding but little laterally, and with one long hair and 

 three short ones; occipital margin weakly concave, with 

 a few hairs of different lengths; small, black, ocular fleck 

 and pale, clear, brownish coloration at side of and behind 

 mandibles. 



