14S 
OMPHALUCHA. By L. B. Peout. 
i-iifiHuhcs. 
apira. 
praeses. 
nubiDiedhf. 
c.viorris. 
subpiniciuia. 
acceutuaiu. 
deflexa sliowed just a trace of the characteristic i)ale mid-subterminal spot, there is a bare possibility that this 
rather distinct-looking species may prove to be a form thereof. 
0, rufinubes Warr. (15 h). Rather larger and broader-winged than ditriba (17 b), wings much less dark- 
mixed, median area of forewing broader, antemedian nearly perpendicular anteriorly, accompanied proximally 
by a narrow dark shade, postmedian followed by a red-brown shade; both wings with a subquadrate pale distal 
spot between 3rd radial and 2nd median, edged by a blackening of those veins; median shade of hindAving more 
nearly parallel to postmedian than in ditriba. Angola: N. Bailundu, the type besides, I only know definitely 
the larger greyer $ from Kasama, N. Rhodesia, here figured; but T strongly suspect that a smaller, less broad- 
Avinged rj from N. W. Rhodesia (H. C. Doelman), with the groiind-colour of the type, the markings nearly as 
in the Rhodesian but the postmedian of the hindAving somewhat more angled in the middle, belongs to them; 
perhaps also a still smaller (32 mm) from Bulawayo, Avith the antemedian still more oblique, the cell-spot 
broader, the postmedian more proximally placed. 
0. apira sj). n. (15 g). Palpus short. Antenna AAdth about 42 joints, the longest pectinations scarcely 
over 3 times the diameter of the shaft, the last 5 or 6 joints scarcely pectinate. ForeAving shaped about as in 
rufmubes, first 2 subcostals stalked (in the jmratype very shortly); fovea rather strong; cell-mark less narroAv 
than in rufinubes, antemedian bending iiiAvard anteriorly, more as in ditriba, and Avithout noticeable reddish or 
fuscous shade proximally; the rest much as in the less bright rufinubes, the postmedian rather more proximal, 
the shade outside it ill-defined. HindAving appreciably broader than in that species; median shade at least as 
proximal as in ditriba, postmedian close to cell-spot and AAdthout the characteristic sinuosities of Onvphahicka. 
Underside a little paler, similarly marked. Angola: Morro de Pundo, (50 kiAi N. E. of Lobito, 21 May 1934 
(K. Jordan), 2 in the Tring Museum. A AAorn J from BulaAvayo is similar but looks less broad-Avinged, 
line of hindAving angled, etc. 
0. praeses sp. n. (15 i). Although the structure is quite normal, this s^jecies presents a someAvhat dis- 
tinctiv'e apjAearance on account of the shajAe of the hindAving; in addition to its someAvhat stronger crenulations, 
Avith deeper excision betAveen the radials, it has the tornus more prominent than in any of the others. Cell-spots 
diffuse, particularly on the foreAving, the pale, buff-tinged subterminal s])ot in front of the 1st radial conspicuous, 
thoAigh not quite sharply defined. rlindAving better marked, the curved median shade Avell before the cell-spot, 
the Avhitish subterminal in })art dark-edged ])roximally, its shajje characteristic. Underside someAvhat striking, 
the cell-spots enlarged and more blackish, the distal area [)artlA' suffused with red-broAvn, so that the colour- 
scheme is strongly reminiscent of that of Eulycia grisea. Mt. Mlanje (Dr. S. A. Neave), type in the British 
Museum. A rather Avorn from Wankie, 8. Rhodesia (coll. TransA'aal Mus.) is a little smaller, an equally Avorn 
5 from BulaAvayo larger. Tn the type the first 2 subcostals of the foreAving are very shortly stalked, in the 
Wankie (J separate. 
0. nubimedia sp. n. (15 i). Another Tanganyika discovery of Mr. Barns's. Face rather prominent, the 
tiift above short, dark. Tongue jAerhaps too well develojAed for a true Omplialuclia; pectinations short (Avell 
under 3 times diameter of shaft). Wings broad, inclining to snuff-broAvn. ForeAving wdth median area broad, 
the AAcak projection of the postmedian forming 2 small teeth (on 3rd radial and 1st median). FTindAving Avith 
costa not Avhitened, markings complete. Underside similar. District of the Great Craters, February—March 
1921, 1 (J. The Tring AIuseAun later received a damaged $ from Dungii, Upper Uelle district, N. E. Congo, 
June, Avith the postmedian line rather more j)roximally placed; and the same collection contains tAvo $$ from 
Suna, 8. Kavirondo. 
0. extorris Warr. (15 f) may be knoAvn at once by its shajje, in ](articular the extreme rounding off of 
the anal angle of the forewing. Exceptional also in the pectinate $ antenna and a few other details, but seems 
to fit better here than in any other known genus. Markings (except as a rule the dark costal spots) very Aveak. 
Larva rather stout, tapering somewhat to both extremities, each segment slightly SAvollen, but Avithout humps. 
"Variable in coloiir, light-broAvn or or darker and more reddish; sjjeckled throughout Avith darker broAvn and 
blackish, Avhich is sometimes sufficiently concentrated in places to form a dorsal ]mttern. (Erom 2 ])reseiwed 
laiwae, Congella, G. F. Lekhi.) 
0. subpunctata Warr. (15 f). Described as a "'Eubyja" (Biston), this has been moved from genus to 
genus, but seems to find its best resting-place in Ow.phaluclm . Its atrophid tongue and the ])resence of a fov^ea 
exclude it from Hemerophila, the latter character also, as Avell as the Aving-shape and pattern and the less hairy 
vestiture, from Aphilopota, Avith Avhich latter the moderately long pectinations and the coincidence of the first 
two subcostals. even in the A, might have ])laced it. KnoAvn chiefly from Natal; Janse adds Warmberg, 
N. Transvaal. 
0. accentuata Eeld. ( dentilinea Warr.) (15h) ilift'ers from subpimetata in the sharj) angulations of 
some of the lines and the strengthening of the subordinate markings. Avhich in large measure takes aAvay from 
