Mallophaga from Birds of Costa Rica, Central America 59 



This form is very readily distinguished by the broad head 

 and the clavate abdomen, with heavy, chestnut, transverse bands 

 and narrow, pitchy, lateral bands. 



Several males and females collected on Gypagus papa, at Pozo 

 Azul, Costa Rica, June, 1902. 



Menopon macrocybe sp. nov., pi. VII, fi^. 2 



Femalk.— Body, length 1.34 mm., width .48 mm. ; head wider 

 than the abdomen ; abdomen almost parallel sided, with heavy, 

 transverse, smoky brown bands. 



Head, length .36 mm., width .57 mm.; very large, somewhat 

 quadrangular, front almost truncate, sides convex and diverg- 

 ing, interrupted by the shallow ocular emarginations ; two long 

 and one short hair in front of Ocular emargination ; a short 

 sparse ocular fringe ; temples rounded, with four long hairs and 

 several short ones ; occipital margin deeply reentering, occiput 

 transverse, with two long hairs ; mandibles rather large, well 

 toward the front of the head ; dark brown antennal bands run 

 diagonally backward from the clypeal angles to the bases of the 

 mandibles, then straight back to the large pitchy ocular blotch ; 

 a black ocular fleck ; whole' head evenly clear, pale, brown. 



Prothorax large, lateral angles bluntly pointed, anterior and 

 latero-anterior sides straight ; whole margin back of lateral an- 

 gles evenly rounded, with one hair on each side; whole segment 

 clear brown, darker in lateral portions, with a transverse band. 

 Metathorax scarcely larger than prothorax, with straight, 

 widely diverging sides and rounded posterior margin ; six long 

 hairs on each side of posterior margin, interior of segment clear 

 brown, with lateral portion deep smoky brown. Legs large and 

 stout, clear pale brown, almost the same color as head, with an- 

 terior margin of femora and both margins of tibiae edged with 

 darker brown ; second joint of tarsi very large in posterior pair 

 of legs. 



Abdomen short, almost parallel sided, abruptly rounded by the 

 large apical segment ; segments subequal in length, with lateral 

 angles scarcely visible, furnished with one long hair and one 

 short one in segments one to eight ; ninth with one long hair on 



t8i 



