150 E. E. AUSTEN. 



In $ sex, at any rate, a somewhat sombre-coloured species looking more like a small 

 or medium-sized Corizoneura than a Pangonia, and not unlike a smaller and more 

 dusky form o/" Corizoneura hastata, Austen, of Portuguese E. Africa. — Face moderately 

 produced ; dorsum of thorax olivaceous black, with a pair of broad, paler (greyish olive), 

 narrowly separated or sometimes confluent, admedian, longitudinal stripes ; dorsum of 

 abdomen shining blackish brown, on each side of base rather more than lateral third of 

 first (visible) tergite ochraceous tawny, a similar area on each side of second tergite, 

 or of second and third tergites, usually russet or chestnut-brown, lateral borders, posterior 

 angles, and (at least in part) hind borders of second and fourth tergites clothed ivith 

 glistening silvery white hair ; wings strongly tinged with sepia ; legs for most part 

 ochraceous tawny. 



Head : ocelli wanting ; face and front clothed with yellowish grey or isabella- 

 coloured pollen, and front thinly covered with yellowish hair, lower half of front, 

 above antennal prominence, with an ill-defined, shining black, median longitudinal 

 mark, upper half of front usually streaked with mummy-brown or dark brown along 

 each side, while a narrow mummy-brown streak, which starts from base of antenna 

 on each side, runs obliquely upwards and outwards, and joins corresponding eye 

 just above base of antennal prominence ; below antennae, a shining black transverse 

 band unites and includes the shining black facial calli ; jowls and basi-occipital 

 region clothed with long, whitish hair ; occiput greyish olive or smoke-grey poUinose, 

 sparsely clothed with cream-coloured hair, which also forms a short fringe behind 

 posterior orbits above, lower portion of posterior orbits fringed with whitish hair ; 

 palpi elongate, proximal joint russet-brown or deep mouse-grey, sparsely clothed 

 with whitish hair on outer side and below, terminal joint russet, somewhat expanded 

 in middle, clothed with minute black hairs ; first and second joints of antennae 

 pinkish cinnamon or cinnamon-buff pollinose, both sometimes clothed with black 

 hair though in some specimens hair on first joint is for most part yellowish, second 

 joint usually with outstanding black hair above and below, third joint orange- 

 cinnamon. Thorax : admedian stripes on dorsum entire, extending from front 

 margin to prescutellar groove, outer border of each stripe paler in front of transverse 

 suture ; dorsum including scutellum thickly clothed with fine yellowish hair, with 

 which in some specimens on central part of posterior portion of scutum a few fine 

 black or blackish hairs are intermixed ; postalar calli and lateral margins of dorsum 

 behind transverse suture fringed with whitish hair, pleurae and pectus thickly 

 clothed with similar hair. Abdo7nen : central portion of base of first (visible) 

 tergite olivaceous black, basal angles of same tergite more or less distinctly neutral 

 grey or dark neutral grey ; rather less than median third of second tergite and a 

 broad median triangle on each of following tergites, in each case with its base resting 

 on hind margin and its apex in contact with front margin, and on fourth and following 

 tergites with its base expanded laterally so as to include entire hind border of segment, 

 dull dark olive-grey ; olive-grey median area on second tergite (sometimes that on 

 third tergite also) indented on each side ; second tergite at base with a median, 

 semicircular, dead black spot, or in some cases with a pair of smaller spots, narrowly 

 separated in middle line by a dark olive-grey longitudinal stripe ; first (visible) 

 tergite with a median patch of glistening yellowish or pale yellowish hair, and 

 clothed elsewhere with ochraceous hair ; second tergite, except on black spo 



