146 PROF. E. B. POULTOX OX 



Eucrostis rufostdlata Mab. Ann. Soc. Ent. Fr. Ixviii, p. 740 

 (1900). 



1909: May 21,-1 $. 



A qviite typical example of this widely distributed African 

 species, extending its known range. 



EUCROSTES ASTIC^MATICA, Sp. n. (PI. II. fig. 22, 5 .) 



J , 15-16 mm. ; 5, 19-20 mm. Superficially very like joy^moea 

 iibl.* { = insnlaris Prout), but larger, of a still more vivid green, 

 and without the discal dots, the pale postmedian line not 

 discernible, or only suggested in certain lights. " Snow-white," 

 in my description (Gen. Ins. cxxix. p. 246) of the costal edge, 

 was not absolutely accurate, as there is, in a good light, a very 

 delicate tinge of pinkish or violet in the white in both species. 

 Structurally like the African members of the genus, the male 

 palpus being less minute than in pygmcea, the 3rd joint in the 

 female leather less long and slender, and the female antenna 

 bi pectinate, the longest branches about twice as long as the 

 diameter of the shaft. 



1908: Sept. 21,-1 J. 1909: Apr. 21,-1 S (type); 

 Apr. 22,-1 $ ; May 10,-2 $ . 



ACIDALIASTIS SUBBRUNNESCENS, Sp. n. 



$,14-16 mm. Much more sti^ongly and uniformly dusted 

 with sand-colour (sometimes more yellowish, sometimes more 

 brownish) than micra Hmpsn., the dark lines only weakly (in 

 the darkest example scarcely at all) indicated, but with very 

 conspicuous white lines proximally to the first and distally 

 to the second ; the former of these is more obliqvie than in 

 micra, not reaching costa, the latter forms a rathei- more 

 appreciable curve than in that species ; discal dot absent. 

 Hind wing white, becoming more or less tinged with sand- 

 colour towards termen, in the darkest-marked example shov,'ing 

 a curved white postmedian line. Fore wing beneath with white 

 outer line and white hind margin, hind wing all white. 



1908: June 1,-1 $; June 29,-1 $ ; Sept. 14,-1 $ (type); 

 Sept. 17,-1 2; Sept. 23,-1 $. 1909: Mar. 24,-1 $. 



Very near bicurvifera Prout (Ann. Transv. Mus., in the press), 

 much smaller, costa rather straighter, apex rather less sharp, 

 termen rather less convex in posterior half, palpus and female 

 aiitennal pectinations slightly shorter, markings less reddish 

 (more olivaceous), postmedian line almost parallel Avith termen 

 (in bicurvifera more oblique), hind wing rather shorter, less 

 unicolorous, face apparently less reddish. 



* Denks. Akad. Wien, Math-nat. Kl. Ixxi. 2, Sep. p. 67 (1907). As only 

 separata in advance seem to have been issued of the paper of Rebel's containing 

 this species, and it was not noticed in the ' Zoological Record,' I do not feel to 

 blame for having overlooked it in the ' Genera Insectorum ' and created a 

 synonym. 



