HYDROECIA. By Dr. M. Draudt. 
187 
brown or reddish with 2 reddish brown dorsal stripes, an interrupted subdorsal and wide lateral stripe. It has 
black warts and pale brown head. It lives in swampy territory with flowing water, in the shoots of Iris pseu- 
dacorus, probably also feeding on grass and swamp thistles. 
A. asiatica Burr. A generally smaller species with uniformly coloured forewings without lighter or asialica. 
darker patches, often diffuse and with less distinct lines; fucosa and oculea-nictitans are sometimes so similar 
that it can only be differentiated by an examination of the genitalia. It is as large as nictitans, fore wings red¬ 
dish brown, orbicular and reniform stigmata somewhat paler, the latter almost complete, incomplete in centre 
towards base. — - asiatica-albo(maculata) Heydem. has white reniform stigma. —- intermedia Heydem. and asiatica- 
intermedia-albo (maculata) Heydem. are the palest forms, leathery brown with distinct brown lines, the shade a/,>0 ~ / 
of colouration is the same as the corresponding forms of fucosa and lucens, but without the grey-violet patch intermedia '. 
in postmedian area. Reniform stigma ochreous, respectively white. — castanea-flavo (maculata) Heydem. is albo- 
the darkest, rich brown form with reddish hue and brilliant orange-red reniform stigma. It can be distinctly lasianea-^ ' 
differentiated by the very narrow, elongate valves, densely covered with spines on the cucullus, without harpes flavo- 
ancl the wide deeply excurved excision of the vaginal plate of the $. Wing expanse: 27-—30.5 mm. Daghe- (maculata.) 
stan, Alexander Mountains; Issyk-kul; Hi territory; Thian-shan; Ussuri; China and Japan. 
A. ochreola St.gr. (Vol. 3, p. 224, pi. 46 b). The illustration was unsatisfactory. It is larger than all ochreola. 
other species. Forewings pale yellow-brown with very narrow white reniform stigma and whitish grey hind- 
wings. The $ valve is fairly similar to that of oculea, the upper hook of the harpe is longer than the hook¬ 
shaped lower branch. Only known to occur in western central Asia. 
A. distincta Warr. (Vol. 3, p. 224, pi. 46 c). The illustration seems to be good, but as only the one distinda. 
specimen is known, it is difficult to say anything definite, without having had an occasion to examine further 
material. Heydemaot finds a resemblance between the illustration and ussuriensis Pet. or even with ochreola 
with yellow reniform stigma. 
A. burrowsi Chapman is a large species (wing expanse: 37—39 mm). Forewings deep rich brown with burrowsi. 
orange-red stigmata. As compared with paludis it differs in the two parallel lines posterior to stigmata, 
the space between the outer line and the margin is intersected by an angulated line. The hindwings are 
characteristic, they are almost whitish yellow, paler at base and with a dark diffuse postmedian line parallel 
to a band-like shading of the marginal area. — burrowsi-albo Heydem. is the form with chalky white reniform burrowsi- 
stigma, orbicular stigma orange. As usual, the reniform stigma is not complete, but it is narrowed towards albo - 
the base, as if cut off by the ground colour. -—- rufa Heydem. denotes a paler $ with fuscous median area, very ruja. 
distinct marking of the lines, with clear dividing line and postmedian area dusted with violet. Hindwings scar¬ 
cely paler at base. Valves of $ with long bold chitinous hooks, projecting distinctly beyond the dense hairs. 
Otherwise genitalia very like those of lucens. Japan, Amur and Ussuri territory. 
A. ussuriensis Pet. This species reminds one strongly of nictitans owing to the reddish admixture of ussuriensis. 
the ground colour of forewings and especially in the surrounds of the reniform stigma. In stature it is more 
like paludis, reniform stigma is white, yellow or orange, the brown lines are clearly prominent, the rect - 
angular, interrupted narrow central shade below the reniform stigma is particularly distinct. In the the 
valve is wide, rounded and bent forward at dorsal rim with a short single branched harpe and a long, dentate 
clavus which is situate widely outward and upright. In the $ the tip of ovipositor is short and wide. Wing 
expanse: 32 mm. Ussuri territory and Japan (Yesso and Hondo). 
• 
A. malaisei Nordstr. superficially most closely resembles an oculea with an unusually large reniform malaisci. 
stigma. Forewings brown to grey-brown. Orbicular stigma orange to dark yellow-red, reniform stigma white 
to creamy yellow or in — erythrostignia Nordstr. orange to dark yellow-red. The latter stigma is very large, crythro- 
roundish, in outer half it has a more or less zigzag shaped brown line. A distinct claviform stigma is absent. stigma. 
Hindwings grey-red to grey-brown, somewhat paler towards base, with reddish yellow fringes. In — conjuncta conjunda. 
Nordstr. both stigmata are conjoined forming a wide cuneiform patch, that extends to the outer transvere 
line. The genitalia of this species have resemblances to those of lucens, paludis and burrowsi, being most like 
the latter. In the q the upper edge of the valve is sharply angulated, the harpe is almost as long as in burr¬ 
owsi, the upper branch extends to the bend of the valve, the lower one exceeds the outer edge of the 
cucullus. Wing expanse: 27—-32 mm. So far only known to occur in Kamschatka. 
93. Genus: Hydroecia Guen. 
H. hucherardi Mab. (Vol. 3, p. 225, pi. 46 cl as “hucheradi”). This species is conspecific with osseola hucherardi. 
(Vol. 3, p. 225, pi. 46 c). It differs by the somewhat more brownish grey, almost impure whitish ground colour 
and the less distinct markings. We are able to replace the unsatisfactory illustration by a good one (22 b) from 
a $ specimen, which has been kindly lent to me for the purpose by Mr Boitrsin. —■ subrufa Luc. denominates subrufa. 
specimens with a deeper brown tone. From France. 
