ohtiisa. 
hulcniata. 
uiulidigcra. 
cacsiplaga. 
acme. 
evisrerata. 
inacquata. 
coaeguafa. 
cinnamo- 
tnozona. 
altipcia. 
mnnticolafa. 
indivim. 
90 PERIZOMA. By L. B. Prout. 
acute, ternien between apex and 3rd radial straight, then ventricose. In colour and markings almost identical 
with the following, to which it may ])rove to sink if the types were rather extreme in shape. Mern 3000—3500 m, 
a pair. 
G. obtusa Warr. (9 i). Smaller than aniitwsa, forewing shorter and more unicolorous, hindwing on an 
average darker. Antennal ciliation of more minute. Kikuyu Escarpment. Also elsewhere in the mountains 
of Kenya Colony and on Kilimandjaro. 
G. indentata Warr. (9 i). Not quite a true Gotumticlea, the antenna with fascicles of cilia, the wings 
rather more elongate, hind wing with incomplete macular subterminal; both wings beneath with subterniinal 
vein-s])ots or dots. Kikuyu Escarpment; also the Virunga Volcanoes. 
G. { ?) unduligera Auriv. apj)ears, from the description and figure, to be very like a small dark inden- 
taia, ])erhaps still narrower-winged, the hindwing unicolorous black-grey, the underside also lacking the charac¬ 
teristic subterminal; biit as Aurivillius describes it as Cidaria (in sensu Hmpsx.) I suppose that the hindwdng 
discocelhdars are not biangulate. “Antenna of A long-ciliate.” Meru, 3000—3500 m, 5 A<$- 
to 3L. 
G. caesiplaga sir n. Pal])\is not extreme, the 3rd joint rather short for a Gonanticlea. Antenna 
with rather long, even ciliation (slightly over 1). Forewing almost as short as in ohtusa, termen not quite so 
strongly oblicpie posterioily; the colouring and the acute, rather deep indentation (between subcostal and 
median veins) of the central l)and ])roximally se]>arate it essentially from ohtusa, apart from the very different 
antenna. Hindwing beneath fuscous with whitish irroration; postmedian line becoming strong posteriorly, ang¬ 
led inw'ard at fold, then very black to 2nd submedian, and accompanied by a pale spot distally; a rather large 
dark spot between 2nd submedian and abdominal margin close to anal angle. N. W. Kivu: Upper Oso River, 
4000 feet, February 1924, 1 A (T. A. Barns). 
8. Genus: Perizoiiia 
Following Mc.Dunnouoh, 1 temporarily extend the limits of this somewhat specialised Palaearctic 
genus (see Vol. 4, p. 258, as subgeniis) so as to include the species (hitherto little studied) which differ from 
Larentia chiefly in the simple A nntenna, from Gonanticlea in the less long paljnis, different shape and macu- 
lation, less unicolorous hindwing, etc. Generally small moths, the hindwdng, at least in the African species, 
a])proaching the shape of those wdiich w^e have here referred to Larentia. 
P. acme Front (10 b). Rather long-winged, glossy, the forewdng above and the hindwdng beneath 
sharply marked, the obliqiie Avhite a])ical dash further enhancing its resemblance to some OrthoUtha, notably 
rhiogyra. Anteniedian line more oblicpie inw^ard posteriorly, postmedian more acute centrally. Madagascar. 
P. eviscerata Warr. (10 b). Smaller than inaequata, the central band of the foreAving less straight, less 
AAdiite, postmedian line Avdth additional teeth, especially the one at 1st radial; oblicpie apical streak Avanting. 
Saldanha Bay, Ca])e Colony. Janse says the figure is much too yelloAv-broAAur and the pale part too dark. 
P, inaequata (9k). Easily recognizable from the figure. The markings of the foreAAdng, but not 
the shape, in part recall those of Gonanticlea more strongly than is the case AAdth most Perizoma. HinclAAdng 
beneath more AAurrmly coloured and more strongly marked than above. Cajie Colony;? Pilgrims Rest. 
P. coaequata sp. n. (9 i). Close to inaequata, of Avhich I formerly supposed it to be a minor geographical 
modification. It proves, hoAA^ever, to be Avidely distributed and the differences in markings, though extremely 
slight, are constant. Slightly shorter-AAdnged, on an average smaller (21—29 mm) and darker-marked; ante- 
median of foreAAung A\ith less produced angles, postmedian slightly more crennlate, distal area more confusedly 
marked. — ab. cinnamomozona ah. n. looks like a distinct species and may possibly ])ro\m so ultimately; median 
band only at extreme edges remaining fuscous, the rest almost uniform cinnamon or pinkish-cinnamon, cell- 
dot generally rather Aveak. Transvaal, the tyjie series (G. v. Son) from Marieps Mtn., in Mus. Tran\uial. The 
median band varies in AAudth, chiefly according to the sex (in the definitely Avider). Except for the rather 
less extreme markings and more intricate subapical maculation, I Avould have supposed this to be eviscerata ITnrr. 
P. altipeta Front (9 k). A unknoAAUi, but the close resemblance to inaequata justifies the assumption 
that its antenna is simple. ForeAving Avith the pale central band extremely narroAved, the cell-spot enlarged, 
the subtriangular dark jiatcli near apex more definitely deAmlojied. RuAA’enzori. 
P. monticolata Auriv. Considerably larger (38 — 42 mm, English measurement), foreAA'ing AA'ith outer edge 
of basal patch more angulated, the Avhite ])ostmedian line se\"eral times dentate inAAard, the subterminal line 
continuing to the costa, here Avith a larger but ill-defined dark patch on its jiroximal side, the apical dash less 
differentiated. Kilimandjaro, 2700—2900 m. - - iudlvisa Auriv., regarded as an ab., is “darker coloured, the 
Avhite transverse line through the middle of the median area is entirely AA'anting and the tAvo transA^erse lines 
before the middle are scarcely indicated". Kilimandjaro; Kiboscho, 3000 m, 1 A- 
