MALLOPHAGA FROM BIRDS OF FORMOSA. 177 
Abdomen very short and broad, width greater than length; entire sur- 
face almost clear, except the lateral and transverse bands; posterior angles 
slightly protruding, bearing one hair on segments U-IV; two hairs on 
segments v and vi and four hairs on segment vil; the last segment broad, 
entire with four weak hairs on posterior margin. Dorsal surface of the 
abdomen with a hair on each side of segments v and vi, just above the 
lateral bands; and four short hairs on the median portion of segments II-V 
and two on segments vı and vir. Lateral marginal bands yellowish, well 
chitinized, entering into the segment preceding and curving inward ; transverse 
blotches short, indistinct, pale yellowish. Genitalia slender with weakly chitinized 
rods reaching to the second abdominal segment. 
6. Goniocotes microcephalus n. sp. 
(Plate X, Fig. 1.) 
Six females and two young individuals were taken from <Arboricola 
erudigularis shot on Mt. Arisan. 
This form somewhat resembles Goniocotes eurygaster Piaget from the same 
host species, and is distinguished from that species through difference in size, 
shape of abdomen, and in cheetotaxy of head and thorax. 
Measurements of the female specimens on hand : 
See ee Smee Pad eS. 
mm. mm. mm. mm, mm. mm. 
en Othe Ole DOG yates yale en: 1.30 1.25 1.25 1.30 1.29 1.27 
aWAIdLHF off bodys mr ncees hs cs 0.69 0.66 0.66 0.69 0.68 0.67 
Honethy Ole head, cas as scke tees 0.38 0.36 0.36 0.38 0.38 0.38 
WWidthwot hedgers een 0.45 0.44 0.43 0.45 0.44 0.44 
uenptin OF thoraxk. area an. 0.24 0.23 0.23 0.24 0.23 0.23 
eidihrofsthorasır a oatrras cc aes 0.38 0.37 0.37 0.38 0.38 0.38 
IANNTONTIA reese choca sf alas sten ne 0.15 0.15 0.15 0.15 0.15 0.15 
Description of female: —Ground colour of head and thorax pale yellowish, 
with yellowish marginal markings and reddish brown blotches; abdomen 
paler, marginal bands and transverse blotches yellowish. 
Head somewhat resembles that of Goniocotes megalocephalus Uchida* ; 
front very broad, convex, with six fine hairs on each side, and a short 
prickle just before each antenna ; trabecule: wanting ; antenns short, the first 
* Annot. Zool. Jap. vol. IX, p. 88. 
