MALLOPHAGA FROM BIRDS 48 1 



it; trabeculae apparently wanting; antennae with segment i longer 

 than all others combined, segment 2 next longest, segment 3 short 

 with a dorsal angular projection at distal extremity, segments 4 and 5 

 subequal ; eyes flatly convex, inconspicuous, with one prickle ; tem- 

 poral margins convex with two prickles ; occipital margin convex, 

 bare ; blackish-brown antennal bands interrupted by suture ; black 

 brown, round blotches behind eyes ; two subtriangular blotches on 

 occipital margin. Prothorax with sides peculiarly produced ; with a 

 long hair in the posterior angles ; posterior margin flatly convex ; 

 dark brown blotches on latero-posterior margins. Metathorax with 

 lateral margins concave ; four hairs in posterior angles ; posterior 

 margin flatly concave ; color whitish with dark brown lateral bor- 

 ders, widest in front half of middle and not reaching the pos- 

 terior angle. Legs uncolored except for the chestnut tibiae and 

 claws. Abdomen elongate, segment 4 widest, segments of about 

 equal length ; posterior angles with few weak, rather short hairs ; color 

 whitish \vith very narrow, clear lateral margin which sends expanded 

 processes inward in behind half of the middle ; lateral blackish 

 blotches of segment i round, 2 to 6 elongate, while those of segments 

 7 and 8 are smaller and round ; segments 8 and 9 narrow : segment 

 9 being narrow toward extremity with angular emargination, a few 

 short hairs on each of the flint points. 



Genus Goniocotes. 



GONIOCOTES GALAPAGENSIS sp. nov. 



(PI. xxx, fig. 5.) 



One male from Camarhynchus productus from Albemarle; two 

 females from Geospiza fiiUginosa from Narboro and one female 

 from Oceanites gracilis from Albemarle. The species of Goniocotes 

 are normally restricted to pheasants and doves, and the distribution of 

 this new species as recorded is another one of the puzzles presented by 

 this lot of specimens. There are no pheasants on the islands and only 

 one dove, Nesopelia. No specimens of Goniocotes were taken from 

 the numerous individuals of Nesopelia shot. 



Male. — Body, length r.oS mm., width .6 mm.; pale yellow, with 

 chestnut brown marginal markings on head and thorax ; abdomen with 

 curving marginal blotches. Head, length .35 mm., width .48 mm, ; 

 front broad, convex, with short prickles ; antennae in a narrow emar- 

 gination with segment 2 longest, segment 5 longer than 3 or 4 ; eyes 

 inconspicuous ; temporal margin strongly angulated with two long 



