APATADELFHA; OZOLA; ALEXIS. By L. B. Prout. 
the forewing. — ab. seci etata Walk, is a weakly marked aberration with the dark spot wanting. — Tlie species .‘iecretala. 
is only known to me from Cape Colony. 
P. tnuricolor Wa7'r. (1 d). Much less dusted than equitaria, postmedian line more distally placed, on the nmricolor. 
forewing more oblique than the distal margin, sometimes developed into a strong continuous dark line; the 
dark spot near anal angle and the terminal dots wanting. Natal and the Transvaal. 
10. Genus: Apataclelpha Prout. 
Different from Panagropsis in shape, in having a better-developed frontal tuft, shorter d antennal 
pectinations and absence of the bases of the first and second subcostal veins of the forewing, which conse¬ 
quently api^ear to arise out of the costal on a common stalk. Only the one species known. 
A. biocellaria Walk. (1 e). Cannot be confused with any known species. The elongate reddish post- hiocellariu. 
median spot at the hindmargin of the forewing, outlined with black-brown dusting, is the most distinctive 
marking. The subterniinal dots between the veins, placed near to and parallel with the distal margin, are also 
noticeable. Commonest in West Africa, ranging from Sierra Leone to the Congo, but I have also seen it from 
Victoria Nyanza and from the island of Eernando Po. 
11. Genus: Ozola Walk. 
The few African representatives of this genus — which is otherwise almost exclusively Indo-Australian 
and has been characterized in Vol. 12, p. 39 - form a separate section in that the hindtibia in both sexes 
wants the proximal spur and might on this ground be regarded as a separate genus. The entire habitus, ho¬ 
wever, and the characteristic venation (especially the very wide separation of the costal vein of the hindwing 
from the cell) indicate a really near relationship. 
0. pulverulenta Warr. (1 c) resembles the two Ceylon species microniaria (Vol. 12, pi. 3d) and convergens pulveru- 
in shape and markings, the antemedian line of the forewing being angled in the cell nearly as in the former, the tenfa. 
postmedian curved anteriorly and sinuate inward posteriorly, more as in the latter. Variable, generally with 
heavy grey irroration. — ab. fasciata Warr. has the median area filled-in with dull brown. The species inhabits fasciata. 
Rhodesia, the Transvaal, Zululand and Natal. 
0. occidentalis Prout is somewhat narrower winged, with shorter antennal ciliation. Distal margin of occideniaUs. 
forewing less sinuate, lines indefinite, postmedian of hindwing more oblique outward posteiiorly. Described 
from the Cameroons, but I have since seen what may prove to be a race of it from Kenya Colony. 
0. inexcisata Fryer, from Silhouette, Seychelles, is associated stnicturally with the Indo-Australian ine.vcisata. 
forms, having on the hindtibia a strong proximal spur. In size, coloration and narrowness of fore wing comparable 
with macariata Walk. (Vol. 12, p. 40, pi. 3 d) or even hasisparsata Walk., but the distal margin not excised, the 
lines arising from costal spots. No subapical dark clouds. Hindwing with a row of submarginal spots nearly 
as in convergeyis Warr. Only the type known. 
12. Genus: Aletis Hbn. 
This genus and the following contain some of the largest and most conspicuous of the African Geo- 
metridae. They cannot possibly be confounded with any others of the family excepting Mianaletis Warr., from 
which they differ in the development of the 2nd radial of the hindwing and the ])resence of an areole (single 
or double) in the forewing. They form, however, the centre of a mimetic association which embraces also 
butterflies (Euphaedra), Aganaids [Phaegorista), etc. 
The smooth face, short palpi and the venation - excepting the wide separation of the costal of the 
hindwing from the cell, connected only by an oblique bar — suggest a possible relationship with the Steirhinae 
and the Rev. C. R. N. Burrows considers the genitalia definitely Sterrhid; but the relationship cannot be 
very close. Aletis is differentiated from Cartaletis by having the areole generally double. The larvae have 
been made known by Dr. Lamborn and are transversely banded, alternately bluish-black and white, with the 
bands equal in width in erici, the black bands very much narrower in helcita, which, moreover, develops after 
the first moult some further blue-black marking; head and claspers in both species yellowish. 
A. helcita L. (= macularia F., druryi Btlr., rubricaput Swh.) (1 e). Pectinations of the E antenna helcita. 
extremely short. The white submarginal spots, both in this sj)ecies and the following, are somewhat variable, 
but in helcita they are wanting behind the 2nd median vein of the forewing and sometimes on the 2nd subcostal 
of the hindwing. Very common in continental West Africa, extending from Sierra Leone to the Congo, also 
found on Fernando Po. — ab. dissoluta Gaede (1 e) has the black border of the forewing more curved round the dissohda. 
