MALLOPHAGA 311 



One female from Acridothercs tristis (Lahaina, Maui Island) which shows such 

 a disproportionate width of body when compared with typical specimens of the species 

 that it must be considered the type of a variety. 



Oncophorus. 

 (1) Oncoplionis adx'ciia Kellogg. 



Oncophorus adveiia Kellogg, New Mallophaga, i. 1896, p. 130, PI. xi. figs, i — 2; 

 List of Mallophaga, 1899, p. 66. 



From Fnlica alai (Kahului, Maui Island), Vestiaria coccinea and Heteractitis 

 incaniis (Hilo, Hawaii Island). This parasite is normal on the coot {Fiilica), but is 

 a wholl)- unexpected find on the hone\'-creeper ( Vestiaria). 



GONIOCOTES. 



(i) Goiiiocofcs c/iiiicnsis [sp. nov.]. 



Goniocoti's c/iincnsis $. Body, length 2 •3 5 mm. ; width '96 mm. : whole body 

 translucent with dark golden brown marginal markings on thorax and posterior margin of 

 head, but paling distinctly on the abdomen. 



Plate X. fig. 5. 



Head, length '65 mm. ; width '85 mm. ; front broadly rounding with several short 

 weak hairs on margin in front of the antennae, which are long and pale in colour, the 

 first segment longer than the second and the third and fourth subequal and together 

 about as long as the second segment ; eye fiatly rounding with one short spine near the 

 posterior angle ; temporal margins sharply diverging, meeting the occipital margin in an 

 acute angle, with two long hairs and one short spine on a sharp angular projection of the 

 temporal margin beyond the real angle of the temples. 



An acute angle each side of the median angle of the occipital margin, each with a 

 short prickle ; ground colour of the head pale translucent yellow with a narrow band of 

 darker yellow on the rounded front. These bands fade slightly inwardly, and in front 

 of the antennae turn in and darken distinctly into golden brown, fading towards the 

 mandibles which are also dark chestnut-brown ; distinct chestnut-brown blotch in front 

 of the eye, the temples with distinct yellow marginal bands ; occipital margin dark 

 chestnut-brown, fading inwardly. 



Prothorax narrow, sides slightly diverging, posterior angles not prominent, with one 

 long weak hair, dark golden brown lateral bands and the sternal markings showing 

 through as broad golden brown bands, bending in and back and meeting in a broad 

 sternal shield on the metathorax narrow, indistinct ; a long hair in each lateral angle ; 

 dark golden brown lateral bands paling inwardly. Legs pale with slightly darker marginal 

 band and few weak hairs ; front pair very short and weak, .second pair little stronger. 



40 — 2 



