色、 側 lur 稍々 圓 雜形ヲ 呈シ、 末端 ハ細ク 截斷狀 一一 終 レス、 脚ハ黑 色、 黃白ノ 短毛 及ビ 剛毛 ヲ装 t、 
脛節ノ 末端 及 ビ跗節 一一 ァレノ モノ ハ黑 色、 跗節ノ 下 面-一 ハ 黃褐ノ 短毛 ヲ 密生 ス、 爪、 ー黑 色、 基部 ハ黃 
褐、 體長 五分、 開 張 七 分、 此ハ 沖繩- 一- ブ黑岩 恒氏ノ 採集 セル モノ ナジ、 
分布. I 沖繩、 
Asilus okinawensis n. sp. (PL XX, Fig. 23- と. • 
Fuscous. Face silky pale yellow, ョ ystax pale yellowish, above and below mingling a ew black bristles. Proboscis 
at the base and cheeks with whitish hairs, palu pnd vertex with short black hairs. Antsnae fuscous, with short black hiirs. 
Thorax siFV vellow, in the middle with a broad fuscous stripe, which being divided by a -arrow grayish stripe, and which 
, tapers towards the hind margin, on each side with 2 fuscous spots, black pubescenTed. Sculellu ョ grayish yellow, with the con- 
cdorous short hairs, at the "hind margin with 2 black bristles. Wings hyaline, slightly infuscated, being somewhat paler in the 
middle and at the base, veins fuscous. Halteres yellowish. Abdomen fuscous, each segment, except the. hst 2 segments, on the 
hind margin Prayish yellcw, with black hairs, on the sides being yellowish pubescented, pygidium shiig black, conical, 
CO ョ pressed, at the t;p being narrowly truncated. Legs black, with p〕le yellowish short and long hairs, those of the tarsi 
t>eing lalacr and tlieir under-sides densely fulvous pstsscented, claws Wack, at Ihe t_ases fulvous. 
lien お h —— 15 ョョ. ； mxp- 21 mm. 
. Heb. I Okinawa ； collected by sr. M. Kfcroiwa. • 
CP- たいわん ふさ ひげむ しひき 第二 十 圖§ は 
學 名 Stenommatius formosanus Mats. 
昆蟲 學上ノ 地位 食 蟲虻科 
■I i 日が 千 蟲圖解 
( 3SS ) 
