62 



M. A. Carriker 



Male. — Body, length .91 mm., width .45 mm.; head, length 

 .24 mm., width .45 mm.; slightly paler than the female, with 

 narrower abdominal bands; apical segments of abdomen same 

 shape as in female; genitalia long, very slender and widely sep- 

 arated with tips curving inward slightly. 



One male and one female collected on Tityra pcrsonata, at 

 Juan Vinas, Costa Rica, March, 1902. This species approaches 

 M. niacsfuin Kell., but differs greatly in size, shape, and inten- 

 sity of markings. 



Menopon distinctum Kell. 



Kellogg, A'eiv Mallophaga III, p. 126, pi. VIII, fig. 7. 

 One male and one female of this well-marked species, de- 

 scribed from Myiarchiis ci)icrascciis, were collected from Myiar-. 

 chus lauTcncei nigricapilhis, at Juan Vinas, Costa Rica, March, 

 1902. 



Menopon stenodesmum sp. nov., pi. VIII, fig. 2 



Female. — Body, length 1.54 mm., width .60 mm.; clear pale 

 testaceus, with brown and pitchy markings on head and thorax, 

 pitchy brown, lateral bands and clear brown, median transverse 

 bands on abdomen. 



Head, length .33 mm., width .45 mm. ; front rounded, with a 

 depression at the projecting palpi and another at the ocular 

 emargination, four hairs on front, between palpi; three short 

 ones behind palpi and two longer ones just in front of the ocular 

 emargination ; ocular fringe heavy ; temples expanding, clear, 

 with four long hairs and a couple of short ones ; occipital margin 

 reentering, occiput very slightly convex, with a narrow, pitchy 

 border; eye large, clear, with a black fleck; an elongated, pitchy, 

 ocular blotch ; mandibles large, brown ; antennal bands run back 

 from frontal margin at palpi, past the bases of the mandibles 

 and along the inner border of the ocular blotches for half their 

 length, then bend abruptly inward and join, forming a backward 

 curving band of deep brown across the middle of the head ; a 

 large brown occipital signature; antennae project slightly. 



Prothorax almost hexagonal, lateral angles produced, blunt, 

 with two spines; posterir.i angles very obtuse with one long 



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