250 
PLECOPTERODES. By M. Gaede. 
7iictHflua. 
vtclIiflKdiia. 
calida. 
itieJlifluodcs. 
cxigua. 
hctcrochroa. 
heterochro- 
ana. 
hctcrochroi- 
dea. 
griseicilkt. 
sgHCihcfi. 
hdosii. 
dissideu.'i. 
moderata. 
an oblique apical shadow enclosing a light spot at the costal margin, then oblique, undulate. Submarginal 
line composed of dark spots. Hindwing with a dark marginal shadow from the apex to vein 4. ^ 48 mm. 
Ogowe. Apparently only this one specimen is known. 
51. Genus: Plecopteroiles Hmps. 
Palpi long and ol)liquely projecting. Middle and hind tibiae spined, thin and long, hairless. All the 
species from Africa, small and insignificantly marked. Type: moderata WUgr. 
P. melHflua Holt. (30 d). Thorax and forewing red-brown with a grey reflection, the marginal area 
more intensely red. Interior line dark, thick, slightly undulated, vertical. Reniform macula narrow, dark. 
The very indistinct dark median line excurved around the cell, from the submedian fold vertical to the inner 
margin. Exterior line more distinct, black, finely notched, excurved behind the cell, from vein 3 somewhat 
obliquely inward, with white scales outside. Submarginal line yellowish, straight. Hindwing greyish brown 
with a dark median line and a dark margin. — mellifluana Strd. shows the reniform macula not filled Avith 
black. - calida Hmps. is besides still smaller, unicoloured red-brown. — mellifluodes Bird, is pale greyish 
brown as far as the submarginal line. — 30—40 mm. Niger District as far as Abyssinia and South Africa. 
P. exigua Gaede resembles melliflua (30 d), but the interior line of the foreAving is someAvhat more 
oblicpie. Reniform macula and exterior line not different. The submarginal line is absent altogether, the 
margin is just as dark as in meUijlua. HindAving not different. $ 34 mm. Bechuana Land. 
P. heterochroa Hmps. (30 d). Thorax and foreAving greyish brown Avith a greenish reflection. Interior 
line dark, someAvliat extra-angular beloAv the costal margin, then straight, vertical. A dark streak at the 
cross-vein. Exterior line feebly double, somewhat undidate, excurved behind the cell, then inward, vertical 
from vein 2. Submarginal line yellowish, vertical from vein 6, somewhat inwardly angled above it; there 
may be three black spots at its distal margin. Hindwing dark reddish brown, Avith a light submarginal line. 
— heterochroana Strd. lacks the greenish tint; Avhite dots at the exterior branch of the exterior line. — hetero- 
chroides Strd. is darker violettish grey. 30—34 mm. South Africa. 
P. griseicilia Hmps. (20 g) is considerably larger. Thorax and foreAving broAvn Avith a someAvhat red¬ 
dish tint. Interior line indistinctly dark, almost vertical. A dark luna at the cross-vein. Exterior line of black 
dots, shaped similarly as in heterochroa. (30 d). Submarginal line grey, Avith dark streaks outside, excurved 
to the apex and anal angle. Hindwing more greyish brown, marginal area broadly darker. $ foreAAung copper- 
colom’ed. 36 mm. Northern Rhodesia. 
P. synethes Hmps. (30 d). Thorax and foreAving greyish brown, rusty broAvn behind the exterior line. 
Interior line fine, dark, excurved as far as the inedian vein, tlieii almost vertical. Exterior line dark, edged 
light outside, somewhat outward at the costal margin, then vertical as far as vein 4, later on slightly inward. 
Submarginal line pale, notched, indistinct, light, edged darker outside. HindAving with a whitish faded median 
line, broAvnish before it, blackish behind it. Described according to the only $ known from East Africa. A 
(J from the same district, which seems to me to belong to it, is slightly different. Intense bluish white dusting 
behind the interior line of the foreAving. Two black dots at the cross-vein. The median line behind the middle 
of the cell Avith an iiiAvard point, bent more inward in the submedian fold. The exterior line is also more con¬ 
cave than in Hampson's figure. Submarginal line in darker surrounrlings. 35 - 38 mm. East Africa. 
P. lutosa Grnhg. deprivata JVarr.) (30 fl). $. ForeAving greyish bi'own, darker behind the exterior 
line. Interior line strong, dark, someAvhat undulately outward, straight, edged light inside. Reniform macula 
narroAV. Exterior line excurved as far as vein 4, then almost vertical, edged light outside. HinchAdug broAvnish 
ochreous Avith a flark median line, broadly dark behind it. The shoAvs the interior line extra-angular beloAv 
the costal margin, slightly concave betAveen the angle and the inner margin, as in moderata. A light submar¬ 
ginal line excurved at vein 6 is recognizable in the dark marginal area. The dark median line on the hind- 
Aving is narroAver, more flistinct, the margin darker only at the apex. 30—32 mm. $ from the Ovamboland, 
J from Windhoek. It may be identical with moderata alypophanes. 
P. dissidens Gaede (30 e) is also similar to moderata, biit the basal area of the foreAving is uot so light. 
Interior line Avithout an angle, straight, somewhat oiitward. Reniform macula 8-shaped. Exterior line bent 
more inward at the costal margin, not thickened. Marginal area darker, an extinct black spot at the anal 
angle and at the middle of the margin. Submarginal line shaped as in moderata, hardly discernible. HindAving, 
dark greyish brown at the base, Avith a dark median line; close behind it begins the dark distal margin. Basal 
area in both Avings beneath Avhite, not yelloAv. $ 26 mm. East Africa. 
P. moderata Wllgr. (30 d, e). Thorax and foreAAung in the basal area greyish broAvn, the rest red-broAvn. 
Interior line dark brown, edged Avhite inside, straight, vertical. Reniform macula indistinct, broAvn, AAdth a 
Avhite dot above and below. Median line indistinct, excurved around the cell. Exterior line broAvn, intensely 
white outside. Obliquely outAvard as far as vein 6, then vertical. Submarginal line pale, edged dark on both 
