分布— 沖繩 (八重 山、 ••• . 
Asilus fal 一 aciosLis n. sp. (PL XX, p-ig. 21, .^) 
Gray, with a silky luster. Head erayisll yellow, mystax で ale yellowish, vertex on the sides and ocellar re お on t>lacl< 
, pubescented Proboscis and palpi with pale yellowish the former at the apex fulvous short pubescented ； cheeks with white 
hairs, ocdp-ut with sac に liairs. Antennae blacl<, witll the concolorous Isirs. Thorax in the middle with a IDroad blacl< 
stripe, which ！ Deinp- c3ivided hv a narrow ^ravisll stride, on eacVi sick witli 3 black sfsts, the hinckr ョ ost one t>eln^ smaller ana 
of a conical shape, with short and long blacl〈 liairs ; scutellum on its liind margin with 6 blac1< bristles. Wings hyauiie, \vitn 
a light pale fulvous stiade, at the apex scarcely grayish mfuscated, veins fulvous, halteres fuscous. Ab>domen above black, al: 
the hind margin of each sep-ment, except last 4 segments, ^ravisll white, witll ^ray isli tiairs, the last 4-segrncnts narrower and slllnln^ 
black:, with black hairs, venter grayish, with pale grayish hairs. Legs black, the anterior 4- tibiae in the middle fulvous, with 
pale g-raysla liairs, b>ristles fsin^ t-laclc, claws black, で ulvilh dirty yellow. : 
ILengJth 1 24- n】m. ； exp， 3^ mr? - - 
Hab. I Okinawa (Yayeyama) ； collected by Mr- IVL K:uroiwa. 
Much resembles to A. viv^ailce せ s coq. 
3 
ちゃ いろむ しひき 
第二 十圖 M ネ 
學 名 Asilus び revistylus ro^. 
I 見蟲 學上ノ 地位 食 蟲虻科 
體" 灰色、 顏ハ 灰黃、 黄毛ヲ 装ヒ、 觸角 下-一、 A 少シク 黑毛ヲ 混ズ" 頗、 口吻 ノ 末端 及ビ其 基部^ 一一 
小 腮 鬚- 1 ハ 黄白 毛ヲ 具へ、 頭頂 一一 ハ黑 毛ヲ 装フ、 觸角ハ 喑！？ 1、 第二 節ハ揚 色、 第三 節 ノ角片 ハ短カ 
新 日本 千蟲圖 解 
C 331 ") 
