African Species of the Genus Clirysop.s. 517 



under surface of head tliinly clotlicd with rather long and 



fine yellowish hair, lonjTjer below ; pulin blackish, slender or 



of medium thickness, clothed with minute yellowish hairs; 



antenna not elongated, first joint more or less incrassated, 



second joint two thirds of length of first; first and second 



joints dark mouse-grey, somewhat shining, clothed with 



rough-looking yellowish-brown hair ; last joint dull brownish 



black. Thorax : dorsum with a pair of well-defined, broad, 



shining, blackish-brown longitudinal stripes, rounded off at 



each end, but not interrupted on transverse suture ; these 



stripes separated by abroad median mouse-grey stripe, darker 



from front margin to a little beyond transverse suture, the 



darker portion with a light grey edging ; pleuraj yellowish 



pollinose (lower portion of mesopleura blackish), with thick 



tufts of cadmium-yellow hair ; dorsum clothed with fine, 



erect, pale yellow hair ; scntel'um dark mouse-grey, elol bed 



with long, thin, yellowish hair. Abdomen : ground-colour 



of dorsum olive-grey, sides of first and second segments 



sometimes oehraceous ; first segment with a blackish-brown 



median blotch, extending well beyond scutellum on each 



side; paired blotches on the four following segments roughly 



triangular in shape, rounded off behind, and not extending 



to hind margins, but sometimes transversely elongate, being 



produced so as to include basal angles of segments; sixth 



and seventh segments mouse-grey ; dorsum (except on black 



blotches, which are covered with minute, apprcssed, blackish 



hairs) clothed with short chrome-yellow hair, most noticeable 



on hind margins of segments ; sides of segments, from first 



to filth inclusive, fringed with bright cadmium-yellow hair; 



venter yelloAvish grey, clothed with cadmium-yellow hair, 



basal portion of some of the segments sometimes with dark 



brown transverse bands. Wings : basal bi'own area in fii*st 



basal cell includes the proximal two thirds ; in second basal 



cell it may be confined to proximal third, or, if extending as 



far as in first basal cell, may be more or less obliterated 



posteriorly ; proximal margin of transverse band running 



perfectly straight from base of third vein to inner basal angle 



of fifth posterior cell, thus filling out the tips of the first and 



second basal cells with colour ; distal margin of transverse 



baiul commencing at end of second longitudinal vein and 



running oblitineh'^ backwards so as to include basal half of 



fifth posterior ceil ; distal margin of transverse band with 



three indentations, the first in first submarginal cell, above 



fork of third vein, the second in first i)osterior cell, and the 



third on or near veiu separating fourth and fifth posterior 



cells ; the transverse baud dies away iu the anal cell ; trans- 



