Vol. XXl] ENTOMOLOGICAL NEWS 463 



nests and bird nests living- undoubtedly on the loose hairs, 

 feathers and dermal exuviae. It is his belief, based primarily 

 on certain striking facts of morphology, that the Mallophaga 

 are degenerate descendants of the Psocidae (see Psyche, v. 9, 

 PP- 339 ff-, 1902). 



New North American Cossidae. 



BY WM. BARNES, S.B., M.D., AND J. McDuNNoucn, PH.D. 

 In anticipation of a revision of North American Cossidae, on 

 which we are at present engaged, and in which we propose to 

 figure all the species, we append descriptions of several new 

 species which have recently been received by us. The types 

 of all these are contained in Dr. Barnes' Collection. 



Givira minuta, n. sp. 



$ . Front, white ; antennae, slightly bipectinate, shaft white, pecti- 

 nations brown ; thorax gray, sprinkled with black, patagia and meta- 

 thoracic tuft reddish-brown ; abdomen smoky gray, with small black 

 lateral tufts on third segment and prominent reddish-brown anal 

 tuft ; primaries light ochreous-brown, shaded with fuscous beyond cell, 

 and with a broad creamy costal margin ; on costa at base of wing is 

 an indistinct smoky brown spot, followed outwardly by a large semi- 

 triangular spot of same color, extending from costa to second anal 

 vein, the apex situated at a point just below median vein, costal angle 

 sharp, lower angle rather blunt and preceded by slight reddish scal- 

 ing; a row of brown spots along costa of which those situated near 

 apex are largest; a smoky brown patch in cell and a somewhat larger 

 one situated between the base of second cubital and the second anal 

 vein ; on inner margin directly below this patch a minute circular 

 patch of similar color, portion between this and base of wings con- 

 taining several fine transverse striations ; beyond these two patches a 

 distinct whitish shade extending nearly to anal angle; an oblong red- 

 dish bar at end of cell, defined slightly by lighter; subterminal space 

 from costa to vein Cu. with a series of large irregular smoky brown 

 blotches, that between veins Mi and M2 being the smallest and fol- 

 lowed by a white patch extending to margin of wing; some indistinct 

 terminal black scaling, followed by a fine terminal line of a light ochre 

 color; fringes checkered brown and white with dark basal line; sec- 

 ondaries dark smoky brown, lighter on costa, with very faint traces 

 of scattered striations and a light ochre terminal line; fringes check- 

 ered, with dark basal line. Beneath dark smoky brown with an 

 uchreous terminal line to both wings and the markings of upper side 



