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irregular elongate with the upper end often sharply notched not reach- 

 ing the eye-margin ; the upper frontal callus longer than or sometimes 

 about twice as long as the lower one and about two-thirds as wide as 

 that, the both calli being connected by a short narrow line, one so 

 described as the front callus has a rather thick linear upper extension ; 

 vertex without any ocelligerous tubercle, covered with rather dense 

 somewhat depressed short black pubescence, behind which are some 

 short (though a little longer than those on the vertex) outstanding 

 black hairs which are not conspicuous. Frontal triangle convex, rather 

 transverse and about three (or more) times as wide as it is long, covered 

 with a dense reddish brown or reddish yellow tomentum, the very 

 fine inconspicuous middle sulcus throughout the whole length. Face 

 greyish yellow or pale yellowish grey, somewhat yellowish brown 

 tinged above ; epistoma moderately raised and apparently broader than 

 the length, with rather large and deep lateral pits, bearing some rather 

 sparse short but most fine blackish pubescence which is more conspicu- 

 ous near the lateral upper corner, while the spaces just above the mouth 

 part and just below the antennae are almost always bare from pubes- 

 cence ; cheeks rather narrow, conspicuously tinged with yellowish brown 

 (or paler) at the upper end and along the eye-margin, covered with 

 numerous but not dense fine yellowish pubescence which is usually 

 replaced or rarely intermixed with blackish hairs similar to those on 

 the epistoma, on the upper half or. more, especially conspicuous along 

 the eye-margin ; jowls paler than me cheeks, covered with rather dense 

 longer somewhat shaggy yellowish pubescence which is hardly extended 

 up to the back of the head ; back of the head shallow on the lower 

 half and moderately hollowed out on the upper half, pale yellowish 

 grey but about the middle part of the upper half yellowish brown or 

 brownish yellow, very sparsely covered with rather soft pale brownish 

 yellow pubescence ; postocular bare rim narrow but comparatively 

 broad, equal through the whole length but very slightly narrowed 

 near the vertex, pale yellowish grey to greyish yellow and almost 



