Genus Grabhamia. 307 



Thorax deep brown, clothed with bright reddish-brown narrow 

 curved scales, a narrow median black line and a narrow line of 

 creamy scales on each side, also a few creamy scales in front, 

 over the root of the wings and before the scutellum ; four rows 

 of long dark bristles on the posterior half of the mesonotum : 

 scutellum brown with narrow -curved pale creamy scales and long 

 dark posterior border-bristles ; metanotum pale brown ; pleura 

 fawn coloured, densely white-scaled. 



Abdomen deep blackish-brown with basal white bands and a 

 few yellow scales on the apices of the last three segments : border 

 bristles pallid ; venter densely clothed with creamy -white scales. 



Legs with the pale coxae, with creamy scales ; femora pale 

 basally and ventrally, with scattered brown scales becoming 

 densest towards the apex, extreme apex with a yellow spot : 

 tibiae brown, mottled with pale scales, darkest towards the apex 

 and with black bristles ; lirst fore tarsal and two following 

 tarsal segments with narrow pale basal bands ; mid-tarsals the 

 same as the fore ; hind legs with a pale basal band to the first 

 tarsals and next three segments, last segment black ; all the 

 ungues uniserrated. 



Wings with brown scales except on the sub-costal vein and 

 one side of the first long vein, where they are mainly white, and 

 also at the base of the costa : the lateral vein-scales on the second, 

 third, fourth and apex of the fifth veins long ; the first, third 

 and fifth long veins with darker scales than the remainder : fork- 

 cells short, the first sub-marginal cell longer and narrower than 

 the second posterior cell, its base about level with that of the 

 latter, its stem slightly longer than half the length of the cell ; 

 stem of the second posterior about the same length as the cell ; 

 posterior cross- vein rather more than its own length distant from 

 the mid cross- vein ; fringe dense, brown. Halteres with pale 

 testaceous stem and fuscous knob. 



Length. — 4*2 to 5*5 mm. 



£ . Palpi brown with a white band at the base of the two 

 apical segments, plume-hairs brown, yellow opposite the pale basal 

 areas, there is also a pale band on the long antepenultimate 

 segment, the last two segments of nearly equal length, the 

 apical one slightly the shorter ; apex of the antepenultimate 

 swollen. Antennae with brown plume-hairs tipped with greyish- 

 yellow ; scales of the head grey. Thorax with looser, more 

 scattered reddish-brown scales in the middle, grey ones at the 

 sides. 



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