NEW MALLOl'HAGA. 15 



Nirmus fissus Nitzsch. (Plate II, fig. 2). 



Germar'ij Mag. Eutoiuol., 181S, vol. iii, p. 291. 

 y^irmus fissus N., Burmeister, Hamlb. il. Ent., 1835, vol. ii, p. 427; 



Dtuiiy, Mouograph. Auoplur. Brit., 1842, p. 148, pi. i, fig. 6; 



WalckeuRT, Ins. Apt., 1844, vol. iii, p. 344. 

 Nirmus bicuspis N., Giebel, lusecta Epizoa, 1874, p. loo, pi. v, figs. 



11 and 12; Piaget, Les Pediculines, 1880, p. 184, pi. xv, fig. 7. 



Several specimens, including male, female and im- 

 mature specimens, from Tringa sp. (Baja California). 

 My specimens are larger than the types of bicuspis and 

 ofTer distinct though minor dilferences. I have given 

 them a varietal name. 



Var, major Kellogg. Measurements. Male, body, 

 length l.Gl mm., width .38 mm.; head, length .3 mm., 

 width .31 mm. Female, body, length 1.87 mm., width 

 .44 mm.; head, length .47 mm., width .33 mm. Dif- 

 fers from types oi ^fissiis (which were taken from "Char- 

 adrius minor") by having a hair in the eye, by having 

 four pustulated hairs on each lateral half of the poste- 

 rior margin of the metathorax instead of three, two 

 being median and two being near the angle; by having 

 the median longitudinal uncolored line of the abdomen 

 limited to tlic first two segments, and by being mark- 

 edly larger. Piaget's specimens oi ^fissus are: length, 

 male, 1.3 mm. to 1.4 mm.; female, 1.5 mm. 



Nirmus fuscus Nitzsch. (See Kellogg, New Mallophaga, 

 11, l8*Jt3, J). 4W, pi. Ixvii. fig. 7). 



Many specimens from a Sparrow Hawk, Falco spar- 

 verius (Panama), a Lower Californian Sparrow Hawk, 

 Falco sparverius peni^isularif^, a Duck Hawk, Falco pere- 

 grinus anaium, and a Saint Lucas Redtail, Bideo boretilis 

 lucusanus (Baja California). Taken previously by me 

 from three species of hawks at Lawrence, Kansas. The 



