Vol. Xxiii] ENTOMOLOGICAL NEWS. 6 1 



The new species is closest to rhamphasti but can be distin- 

 guished from it by the more elongate form, the testaceous pro- 

 thoracic bands, only slightly interrupted at middle, the more 

 elongate head, and the head markings. 



Description of female. Body, length 2 mm., width .66 mm., moder- 

 ately robust, for the most part clear with distinct testaceous markings 

 and a piceous brown abdominal margin. 



Head, length .75 mm. ; width .48 mm. ; front conical, broad, slightly 

 concave at apex ; sides slightly concave with four short hairs ; clypeus 

 clear, slightly emarginate in front; trabeculae short, colorless; antennae 

 colorless, short, of medium thickness, the second segment longest ; 

 temples little rounded, expanded slightly anteriorly and posteriorly, with 

 two hairs; eye prominent, colorless, with bristle; occiput concave; an- 

 tennal bands broad, faintly colored ; mandibles reddish brown ; a small 

 black ocular fleck; whole head slightly testaceous, except oval fossae 

 and part between occipital bands. 



Prothorax short, sides rounded, without hairs, blackish brown lateral 

 bands, extending around on posterior margin and almost meeting ; coxal 

 bands visible; interior of segment same color as head; metathorax 

 larger, pentagonal, posterior margin broadly angulated on abdomen ; 

 three hairs at posterior angles; sides convex, widely diverging; black- 

 brown lateral bands curving inward ; legs pale with golden tinge at 

 end of tibiae. 



Abdomen oval, colorless except faint median blotches on last three 

 segments and sharply defined marginal band strongly piceous to brown, 

 fainter on last two segments; each segment except the first two with 

 two long hairs at outer angle; dorsum with long slender hairs. 



Nirmus actophilus Kellogg and Chapman. 

 Two males from Aphriza rir^ata, San (ieronimo Island. 



Nirmus complexivus Kellogg and Chapman. 

 One specimen from Limosa fcdoa, Playa Maria Hay. 



Nirmus ductilis Kellogg and Chapman. 

 One specimen from Amphispiza belli, San Martin Island. 



Nirmus maritimus Kellogg and Chapman. 

 Two specimens from Ptychoramphus alcnticits. 



Nirmus ochropygus Nitzsch. 

 Male and female from Hacmatopns frazcri, San Martin 



Island. 



Nirmus, felix Giebel. 



One specimen from Larns hccrmani, Todos Santos Island. 



