﻿128 ERNEST E. AUSTEN— NEW AFRICAN 



especially long on upper surface of first joint, third joint of antennae clove-brown, 

 dark brown, or dark cinnamon-rufous, proximal portion broad. Thorax : dorsum 

 with a broad median longitudinal stripe (sometimes divided), humeral and 

 prealar calli (except sometimes anterior extremities of latter), postalar calli and 

 lateral margins between latter and transverse suture, transverse suture itself, 

 and scutellum dull olive, grey, or yellowish-grey pollinose ; two clove-brown 

 areas (one in front of and one behind transverse suture) on each side of median 

 pollinose stripe, area behind transverse suture narrower and longer than the other ; 

 dorsum clothed with fine erect blackish hair, more or less interspersed, especially 

 towards each side, with short appressed ochreous hair ; postalar calli and area 

 immediately above base of each wing clothed with longer, pale yellowish hair ; 

 pleurae and pectus light grey, clothed with whitish hair. Abdomen : dorsum 

 clothed mainly with minute, appressed, black hairs ; lateral margins and posterior 

 angles of first segment clothed with whitish hair ; dorsum of second and third 

 segments, at least in centre and towards lateral extremities, showing more or less 

 ill- defined traces of clove-brown pigment, dorsum of fourth segment sometimes 

 almost wholly clove-brown, sometimes partly tawny ; coloration of venter agree- 

 ing generally with that of dorsum. Squamae yellowish, or light raw-sienna- 

 coloured. Halteres dark sepia-coloured, tips of knobs paler. Legs : coxae grey, 

 clothed with whitish hair ; hind tibiae clothed with fine, short, outstanding 

 blackish hair. 



Ashanti and Southern Nigeria : type from Obuasi, Ashanti, 24. vi. 1907, 

 "caught on Sansu trolly line near stream " (Dr. W. M. Graham, W.A.M.S.); a 

 second specimen (para-type) from same locality, 27. vi. 1907, "caught in bush- 

 path, at 125^ miles on Gold Coast Government Railway, 11.30 a.m. (Dr. W. M. 

 Graham) ; one other para-type from Ikom Station, Cross River, Southern 

 Nigeria, 6. vi. 1910 (Dr. W. S. Clark, W.A.M.S. : presented by the Entomo- 

 logical Research Committee). 



Dr. W. M. Graham, in whose honour the new Subpangonia is named, has 

 kindly supplied the following field-note. — " The first specimen of this species 

 that I met with I mistook for a humble-bee, on account of its curious habit of 

 hovering in the air and buzzing loudly, darting away for a moment and then 

 returning and buzzing round me again. This individual was caught in an open 

 plantation, by the side of the Sansu trolly line, about a mile outside Obuasi ; the 

 second specimen, the behaviour of which was similar to that of the first example, 

 was taken in a bush-path, in dense bush, a mile and a quarter from Obuasi, 

 towards Kumasi. These were the only two specimens seen in seven and a half 

 months." 



Subpangonia grahami is closely allied to S. gravoti, Surcouf, but may be 

 distinguished by the darker coloration of the dorsum of the abdomen, the first 

 three segments of which are dusky tawny instead of ochraceous ; by the pre- 

 dominance of blackish or black hair on the dorsal surface of both thorax and 

 abdomen ; and by the presence of a band of silvery- white hairs on at least the 

 lateral portions of the hind borders of the second, fourth, fifth, and sixth 

 abdominal segments, these segments, or at any rate their hind borders, in 

 S. gravoti bein^ clothed with ochreous hair. 



