Monoyraph of the genus CatochrysojJS Boisduval. 291 



Hab. N.W. Rhodesia and Northern Rhodesia. 

 Type in the Joicey collection. 



Genitalia rather small, harpagines oval at the base, tapering 

 rapidly into a narrow, arm-like process, not very long comparatively, 

 highly concave at the lower niargin and convex at the ujiper margin, 

 tapering beyond the centre into a long hooked apex; they are 

 moderately furnished with long bristles; anellus with front edge 

 slightly waived, nearly erect ; aedoeagus broad, of moderate length ; 

 cingulum of moderate width and dimensions ; tegumen, a narrow 

 raised ridge at the rear, with oblong cheeks projected far forward 

 horizontally with longish bristles; falces long narrowish. 



Andi-oconia, large oval with a small central depression in the 

 distal edge, and with ten or eleven rows of reticulations placed fairly 

 well apart; the sculpturing being also well apart vertically. 



Whether this species is distinct from reichenoivii Dewitz 

 I am unable to say, not having had the opportunity of 

 seeing the type of the latter. 



The figure shows only a narrow submarginal stripe to 

 both wings, whereas Druce's insect has a broad submarginal 

 and a narrow marginal stripe; it might well be the wet- 

 season form, and reicJienowii (from Angola) a dry-season 

 form of the same species. 



There remains, however, the possibility of the artist's 

 delineation being in error, for it would be very easy to 

 combine the two stripes into one, and the figure has an 

 unnatural appearance to my eyes. 



The synonymy had better, however, remain as it is at 

 present, leaving the two species distinct for the time being. 



Neochrysops reiehenowii Dewitz. 



Plebeius reiehenowii Dewitz, Nov. Act. Cur., 41, 2, p. 203, 



PL 26, fig. 14 (1879). 

 Ciqndo rechenowii Aurivillius, Rhop. Aethiop., p. 372 (1898). 



" Alae supra cano-violaceae maculis, vittisque paginae inferioris 

 translucentibus parum; alae posticae ad caudam macula fulva 

 nigropupillata. Alae siibtus albidae maculis fasciisque maculatis 

 f uscis et nigris ; alae posticae ocellis duobus fulvis nigro pupillatis. 

 Longitudo alae anticae, 0-017 m. 



" Oberseite graublau. Flecken und Binden der Unterseite auf 

 der Oberen wenig sichtbar. Am dem Schwanzchen der Hinterfliigel 

 ein ziegelrother, schwarz gekernte Fleck, ein zweiter dicht daneben 

 TRANS. ENT. SOC. LOND. 1922. — PARTS III, IV. (FEB. '23) X 



