Mallophaga front Birds of Costa Rica, Central America 6i 



slip^htly flattened arc ; whole occipital marg-in evenly concave with 

 a narrow, pitchy suhmarginal band, and two median marginal 

 hairs, two short hairs on the front, one at the slightly projecting 

 labial palpi, two long ones and a short one in front of the ocular 

 fleck ; three long marginal ones and several short ones on the 

 pointed temples ; a pitchy brown suhmarginal band around front, 

 broadening at bases into brownish areas ^covering the whole sides 

 of the head except the paler apical portions of the temples ; a 

 large black ocular fleck ; a short dark longitudinal band runs 

 forward from bases of mandibles almost to margin of head ; two 

 curving bands in occipital region, joining at anterior ends and 

 then extending laterally to the dark portion of the head. 



Prothorax Inroad, with produced, bluntly pointed lateral angles, 

 with anterior portion flatly rounded, and very obtuse posterior 

 angles, making nearly straight postero-lateral margins and flatly 

 rounded posterior margin; lateral angles with one long hair and 

 a spine; posterior angles with a long hair, and posterior margin 

 with six slender hairs ; whole segment narrowly edged with 

 chestnut; narrow, lateral, deeply suhmarginal, and a narrow me- 

 dian transverse band of chestnut ; whole segment deep smoky 

 brown. Metathorax scarcely larger than prothorax, with 

 straight, widely diverging sides and flatly rounded posterior 

 margin having row of about ten fine hairs and one in posterior 

 angles; a lateral emargination at the mesothoracic suture; ante- 

 rior and lateral margins edged with deep chestnut; segment deep 

 smoky brown paler in mesothoracic region. Legs large and 

 stout, posterior pair largest, with tibiae very large, longer than 

 femora and edged with pitchy. 



Abdomen broadly oval, with broad, flatly rounded tip; pos- 

 terior angles rather sharp, projecting, with one long and one 

 short hair in segments one to eight; segments nine with several 

 long, and a fringe of fine hairs on the flatly rounded ])osteri()r 

 margin, posterior margins of segments one to eight with a row 

 of about twelve to sixteen short hairs ; broad continuous, trans- 

 verse bands of deep smoky brown on all the segments, darken- 

 ing to pitchy in the lateral portions of segments one to eight and 

 seixu-ated transversely by clear sutures except between segments 

 eight and nine. 



1S3 



