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triangle quite bare and shining deep reddish brown with the upper border 

 blackish, but greyish yellow at the double lunule just above the anten- 

 nae and about the eye-margins, moderat.lly raised before the level of 

 the eye-margins, with a distinct though very narrow longitudinal median 

 furrow which becomes very deep just above and between the antennae 

 as its lateral edges are conspicuously elevated, and with a distinct narrow 

 very shallow transverse furrow between the eye-angies ; occiput reddish 

 yellow or ashy brownish grey, clothed with abundant long curved deep 

 yellow hairs which are intermixed with a few similar, but stouter and 

 black, hairs (in the formosan species the black hairs are very conspicu- 

 ous). Face very broad, puffed out of the eye-margins, blackish but 

 densely obscured by a greyish yellow tomentum (sometimes less dusted 

 on the epistoma), bearing long and somewhat bushy yellow or deep 

 yellow pubscense on the side-cheeks, and bearing longer but sparser 

 yellow or deep yellow hairs on the epistoma, in the Formosan form 

 the pubescence intermixed with a very few similar though stouter black- 

 hairs at the upper lateral elevated parts of the epistoma ; jowls and 

 the back of the mouth with dense very long shaggy deeper coloured 

 hairs ; jowls under the eyes at the back part and the back of the head 

 right up to the vertex moderately and somewhat equally puffed out, 

 greyish yellow, and bearieg a rather short brownish yellow ciliation all 

 along near the eyes leaving a narrow ashy yellowish grey postocular 

 rim, and behind this brownish ciliation (especially near the upper part) 

 is a long straggly yellow pubescence. Proboscis stout, shorter than 

 the depth of the head, deep black, with a few rather conspicuous long 

 erect brownish yellow pubescence behind the stalk ; palpi deep reddish 

 yellow, about two-thirds as the proboscis ; first joint very short, darker 

 on the outside, bearing an abundant long shaggy golden yellow pubes- 

 cence similar to that on the mouth-edge ; second joint broad at the 

 base but rather quickly attenuating after the band to a blunt tip, about 

 four times as long as the thick part is deep, densely clothed with 

 short depressed brownish yellow pubescence intermixed with a few 



