46 
ANDROZEUGMA; EUCROSTES. By L. B. Prout. 
alhistr'Kjuia. 
jrustrutorla. 
tenuis. 
■inoUior. 
astigrnatica. 
■pygmaea. 
disparata. 
beatificata. 
rhodopli- 
thahna. 
B. Antenna of ^ e n t a t e or snb pec tin ate [Mixocera Worr.). 
M. albistrigata Pagenst. (= albimargo Warr.) (4 k). Forewing wdth postmedian line generally broad, 
especially in the often almost as broad as the green band beyond it; an additional white line at the distal 
margin and, best developed in the a slender antemedian, more or less curved and often approaching the 
postmedian. Hindwing generally more whitish proximally than in viridans, but never wholly white. Range 
about as in viridans, and likely to prove a race of the Indian parvidaia Walk. The type of albistrigata was 
from Quilimane. 
M. frustratoria Wllgrn. (= ? oleagina Warr., ? serraticornis Warr.). I formerly believed that there 
existed side-by-side with albistrigata a closely similar species with slender postmedian line and obsolete ante- 
median, and still think it not unlikely that this may be the case, as some seem to have the antennal teeth 
less develo])ed than in true albistrigata : but the markings of the latter are so variable, and most of the material 
in the supposed frustratoria is in such bad condition, that much uncertainty surrounds the question. The forms 
named by Warren were from Natal; the type of frustratoria a $ from E. Caffraria. 
75. Genus: Auclrozeugma Front 
Differs from Mixocera in the less minute palpus, stronger tongue, simple antenna of the d', thinner 
scaling and a tendency, though variable, for the costal of the hindwing to anastomose with the cell for a short 
distance near the base, especially in the In the type species, the 1st subcostal of the lorewing arises from 
the stalk of the others and the 1st median of both wings is stalked with the 3rd radial. The species which is 
provisionally placed with it {mollior) has the 1st subcostal from the cell, the other stalkings variable. 
A. tenuis Warr. { — hapala Prout) (4 k). An inconsjhcuous species, but not difficult to determine with 
the aid of the structural characters, tenms Warr. was founded on two specimens which were not even congeneric, 
but his $, which is the Androzeugma, was treated as the holotype and my name of hapala must sink. See 
Prasinocyma simiaria Guen. Nigeria (loc. typ.). Gold Coast, Senegal and Gambia. 
A. mollior Prout (5 d) is less thinly scaled and with less specialised venation; the costal of the hindwing 
anastomoses at not, or scarcely, more than a point and the insect is in effect a Neromia with the frenulum lost. 
S. Rhodesia. 
76. Genus: Eiicrosles Hbn. 
A diagnosis of this genus, with some account of its geographical distribution, has been given in Vol. 4, 
p. 33 Distinguished from the pectinate section of Mixocera by its longer paljms and generally by its coloration 
and some details of venation, from Androzeugma by its robust build, dense scaling and strongly pectinate 
antenna, at least in the (^. Antenna of $ pectinate or occasionally only serrate. Eorewing with 1st subcostal 
arising from the cell, generally running into the costal. The species of the typical group are very homogeneous; 
a few long-winged species must ultimately be removed. 
E. asligmatica Prout belongs to the typical group, but presents a somewhat different appearance on 
account of the absence of the red cell-dots and terminal line, only the distal half of the fringe being tinged 
with rose-coloixr; lines very weak. Expanse 15—16 mm in 19—20 mm in British Somaliland. 
E. pygmaea Rbl ( = insularis Prout) is very similar to astigmatica but smaller and with a small brown- 
red cell-dot on each wing. Structurally different from it in its stronger sexual dimorphism: palpus short in (j', 
rather strongly elongate in $, antenna of $ not (as in astigmatica) pectinate. Socotra. 
E. disparata Walk. (= parvulata Walk., albicornaria Mab., iocentra Meyr., barnardae T. P Luc., 
mbridisca Ifarr., nanula Warr.) (4 k). Similar to the genotype [indigenata Vill.), agreeing in the red cell-dots 
and w^avy terminal line. On an average smaller, the costal margin of the forewlng wliite, the fringes much paler 
reddish than the terminal line, the whitish postmedian line generally better developed than in indigenata . I 
can find no tangible difference between the Indian form disparata, the Madagascar and Comoro albicornaria, 
the Oueensland iocentra and the E. African rubridisca and believe wn have to do with a single, extremely widely 
distributed species. In Continental Africa it extends from Kenya Colony to Rondoland. — beatificata Walk., 
from W. Africa (Sierra Leone to Nigeria and Uganda) is perhaps a tenable race by the better develojxed wliite lines, 
E. rhodophthalma Prout. Expanse ($) 22 mm. Palpus \Gth terminal joint long. Ground-colour slightly 
more bluish than in disparata, costal margin of forewing more broadly white; ced-spots larger, wliite-surrounded, 
the wavy red terminal line enclosing — at least in part — some irregular white spots at the distal margin. 
Cape (type) and Natal, very rare. 
