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times as long as its narrowest part, greyish yellow above but becoming 

 brownish orange about the middle and more yellowish just above the 

 lower frontal callus ; lower frontal callus shining black, almost quadrate 

 or even lighter than broad, slightly elevated, and not touching the 

 eyes at any part, or sometimes touching the eye-angles and connected 

 with long narrow shining black upper frontal callus by a narrow some- 

 what raised black line, the intermediate line between the lower and 

 upper frontal calli almost always dusted with greyish yellow; ocelligerous 

 tubercle roundish, shining dark chestnut, more raised than the upper 

 frontal callus ; vertex blackish grey, and frontal triangle ashy grey but 

 slightly yellowish about the middle, with the yellowish double lunule 

 just above the antennal pits and with a usual middle fine furrow, quite 

 bare from pubescence ; pubescence on the frontal stripe rather dense, 

 rather short, mixed black and yellow; the yelLow hairs being rather 

 thinner but rather conspicuous, and usually the black ones sloping 

 forwards about the lower half or erect about the upper half; pu- 

 bescence on the vertex rather longer, curved forwards, and all black 

 except for sometimes a very few pale hairs close against the occiput. 

 Face yollowish ashy grey, moderately elevated from the eyes ; cheeks 

 rather broad, v ery slightly narrow above where the oblique furrow 

 appears and the face separated from that by it, with mainly pale yellow 

 silky hairs, which are intermixed with a few short blackish hairs on 

 the upper part, and which grow longer and shaggy on the jowls ; 

 epistoma almost always more yellowish, with scattered yellowish silky 

 pubescence which is intermixed with a few rather stout but inconspicuous 

 black hairs about the middle ; pubescence on the lower part of the 

 jowls and all about the back of the mouth longer and pale yellowish, 

 dense and conspicuous ; all along below the eyes and up all the back 

 of the head to the vertex is a narrow dull pale yellowish grey bare 

 rim, behind which is a rather short though rather crowded ciliation of 

 brownish yellow hairs which only extend to the upper eye-angle ; back 

 of the head all light grey and bearing on the back of the jowls some 



