Mallophaga fyoiii Birds of Costa Rica, Central America 39 



submarginal area; tip of nintli segment encircled by a brown 

 band; a median longitudinal deep brown blotch, narrowing pos- 

 teriorly; a row of about six short hairs in median portion of 

 segment. 



Male. — Body, length 8.47 mm., width 2.32 mm. ; head, length 

 1.67 mm., width 1.57 mm. ; darker than the female, with narrower 

 submarginal clear bands on abdomen, and with the tip having 

 two brown lateral blotches instead of one median blotch. 



Numerous males and females collected on specimens of Gypa- 

 gus papa at Pozo Azul, Costa Rica, June, 1902. 



This species also much resembles Piaget's Lae. titan, more so 

 than my oUgotlirix, but can easily be separated from it by the 

 presence of median clear lines and spots on the abdomen, bv a 

 wider, submarginal clear area, by the absence of a narrow darker 

 transverse band across the anterior margin of the segments, by the 

 presence of clear pustules in the lateral bands, by the lighter 

 ground color of the thorax, and different bands, and by the more 

 slender tibiae. 



Laemobothrium oligothrix sp. nov., pi. IV, fig. 7 



Female. — Body, length 9.61 mm., width 2.71 mm.; deep 

 smoky brown throughout, with pitchy markings on head and 

 thorax and broad pitchy lateral bands on abdomen. 



Head, length 1.79 mm., width .76 mm.; sharply conical with 

 the straight sides interrupted by the swellings of the antennal 

 fossae, and the clypeus squarely truncate; palpi small, project- 

 ing by the last two segments ; temples produced posteriorly, 

 bluntly pointed ; occiput transverse ; clypeus, antennal fossae, and 

 lateral portion of temples with numerous fine hairs ; temples with 

 three rather weak hairs, one of which is pustulated ; whole head 

 an even, clear brown, with an irregular pitchy band on each side, 

 starting just behind the lateral angles of the clypeus, running 

 backward along inner edge of antennal fossa, separating behind 

 it, with one branch curving outward to margin at eye, thence 

 backward to widest portion of temple, and the other branch pass- 

 ing backward and inward to the occiput, with a break at the 

 submarginal, pitchy, occipital band; mandibles large and heavy, 



161 



