n 



much contracted more than In the female which has the straight side 

 of the, face but iu the male the side outwardly curved just below the 

 a« ten rial tubercle; the intermediate yellow line much broader, conspicu- 

 ous and reaching to the upper mouth-egde, gradually broadened above 

 at where a fine and paler transverse line is along the transverse sulcus 

 below the antennal tubercle ; two shining black facial calli nearly 

 pentagonal and indistinctly split by an inconspicuous longitudial furrow 

 into a large inner and smaller outer pari, united with the two small 

 shining black upright rather broad oral calli which are placed just above 

 each side of upper mouth-edge; the narrow yellowish lateral patches which 

 extend from the eye-margins to the lower mouth-edge at where the 

 patches are very inconspicuous and consequently separate the facial 

 and buccal calli, as well as indistinctly the oral and buccal calli at 

 near the mouth-edge ; jowls behind the buccal calli inconspicuously 

 greyish brown, with pubescence all yellowish on their lower part and 

 behind, the mouth but brownish on their upper part and near eyes ; 

 back of the head flush with the eyes, blackish but obscured by a greyish 

 yellow tomentum; and bearing a very minute black bristly postocular 

 fringe ; pubescence on the face consisting of moderately numerons long 

 brownish hairs which are absent from the oral calli and facial calli ex- 

 cepting of the upper outer part and from a small space between and 

 just above the oral calli, and some yellow hairs occur outside the oral 

 calli. Proboscis brownish black, somewhat obscure greyish yellow, 

 shorter than the depth of the head, rather thin, bearing very minute 

 somewhat bristly suberect brownish hairs, and with the slightly broad 

 sucker-flaps which are furnished with longer brownish hairs beneath. 

 Palpi deep brownish black, rather shining, about twice as long as the 

 proboscis, very slightly dilated near the base but long and cylindrical, 

 elevated at right angles to the proboscis, and bearing moderately nume- 

 rous, rather long, blackish pubescence but with some yellowish hairs 

 beneath about the base. Antennae in some lights rather shining, much 

 shorter than the head and thorax (including the scutellum) together, 



