AGROTIS. By Dr. A. Corti. 
47 
A. fatidica Hbn. (Vo], 3, p. 25, pi. 5 c) (= incurva H.-S. sec Stgr.). $$ with short wings, size colour and fatidica. 
markings vary fairly considerably both in and There are quite black $$ and again such with bold markings, 
the <$<$ occur pale and dark with heavy or faint markings. There is a completely coffee-brown $ without white 
in the collection of Zeller at Zurich. In the museum at Munich there is 1 large $ with completely developed 
wings, which I consider to be fatidica Ev. v. bombycia Ev. and not characteristica ; from Central Asia. The entirely 
black $$ are denominated by Dannehl as — ah. monedula. A high alpine insect, occurring in Switzerland at monedula . 
between 1800—2700 m altitude (Vorbrodt). Besides the localities mentioned in the main Volume, also recorded 
from the Tyrol, Styria, Bulgaria, Albania, the Rhodope Mountains. July—August. In Central Asia, Mongolia 
etc. — bombycia Ev. (6 a S) (= Hadena [Neuria] bombycia Ev.). Markings as fatidica, also very similar to bombycia . 
robusta Ev. Fore wings darker, more inclined to black-brown, veins and transverse lines pale, brownish, claviform 
stigma circumscribed by black, hindwings brownish grey with similarly coloured fringes. £ so far unknown. 
A somewhat uncertain form, perhaps belonging to robusta Ev., possibly a genuine species. Siberia, Irkutsk, 
Minussinsk, Urga, Mongolia, Mandchuria. Early stages of fatidica : ova large, irregular, unicoloured yellow- 
grey or grey-white, pretty well ridged. Larvae subterranean, cylindrical tapering off anteriorly, dark grey, a 
narrow dark dorsal line, a double dark narrow subdorsal line, grey-green ventrically, head reddish, waxy yellow 
with 2 heavy crescent marks. Scutellum glossy buff with dark spots. Pupa red-brown with 2 cremaster spines. 
A. robusta Ev. [Kind. i. 1.) (Vol. 3, p. 25, pi. 5 e $) (= l trifurca H.-S. nec Ev.). A much discussed robusta. 
species. Perhaps only a form of fatidica Hbn. % or of trifurcula Stgr. ? It is a large species, up to 43 mm. Markings 
more definite than in fatidica Hbn. According to Erschoff it is only a variety of trifurca Ev. Nevertheless 
robusta may be a genuine species. It varies considerably in colour and certain specimens very closely resemble 
trifurca. Most specimens however have a heavy whitish, sometimes pure white median nervure and subcostal 
vein, such as is never found in trifurca. In that species they are always yellowish to brownish. Further trifurca 
has always a more or less wide pale inner margin to forewings, which I have never seen in robusta. Orbicular 
stigma small, round or oval, usually with distinct white circumscription. Sagittate marks usually clear situate 
between the white dusted veins. The $ fully developed, inclined to he larger than the <$, usually darker, 
sometimes almost black. Altai, Urals (v. ?), Sajan, Transbaikalia. Early stages unknown. 
A. trifurca Ev. (Vol. 3, p. 26, pi. 5e). The antennae of $ somewhat more heavily pectinated than in trifurca. 
ruta Ev. The illustration in the main Volume is fair, only the median nervure with the 3 white points should 
be much more distinctly pale, similarly the inner margin of forewings (compare remarks under robusta). Outer 
area of forewings much darker than the wing itself, sagittate marks often very distinct. Claviform stigma dark 
brown to black, elongated, extending almost to under the reniform stigma. In robusta it is wider and extends 
at best only to under the orbicular stigma. Hindwings dusky brown, somewhat paler in centre. The species 
appears to vary little. The $ is fully developed, as large as the <$, abt. 38 mm. Markings and colour as the <$. 
Eastern Russia, Kasan, Urals, Orenburg, Ussuri, Amur, Prokofka, Vladivostock. End of June to August. 
Early stages unknown. 
A. trifurcula Stgr. (Vol. 3, p. 26, pi. 5 e). The illustration in the main Volume was not a success, a is trifurcula . 
being illustrated here (5 1). Perhaps it is only a form of robusta Ev. with which it agrees almost exactly in point 
of markings. — The same applies to sajatta Stgr. i. 1.; when seen in long series both trifurcula and also sajana sajana. 
appear to differ slightly, being much paler (against darker specimens), generally the grey-white ground colour 
is predominant. The specimens appear much more brightly marked and are generally decidedly smaller. Dark 
and large specimens also occur and among robusta occasionally one finds quite small specimens. The smallest 
specimen in my collection expands only 30 mm. The $ on the other hand, assuming a specimen from the White 
Mountains to belong hereto, has only semi-developed wings of 21 mm expanse. It has the markings of trifurcula, 
abdomen is long extended, hindwings dark. Mongolia, Changai, Urga, Siberia, Kentei. Early stages unknown. 
A. atra sp. n. (5 1 S type). Same size as trifurca Ev. and doubtless very close to same. Fore wings dark, atra. 
glossy black-brown, basal line, inner transverse line and orbicular stigma obsolescent or barely visible, also 
reniform stigma very indistinct with pale centre and dark surround. Outer transverse line indicated by a series 
of dark spots, sagittate marks barely visible. Orbicular and reniform stigmata situate in a broad blackish streak. 
Lunules before the margin, then a pale yellowish marginal line, fringes brownish. Hindwings dusky brown, 
rather paler in centre. Thorax pale grey. Underside dusky brown, almost unicoloured, somewhat paler in 
centre, hindwings generally somewhat paler, especially in central area in which a distinct discoidal spot is 
situate. The $ is fully developed and like the <$. China, Yunnan. 
A. sabulosa Rmbr. (Vol. 3, p. 25, pi. 12 a). The illustration in the main Volume is poor, a fresh illus- sabulosa . 
tration is given here (6 a $). Only very few specimens are known, but certainly a genuine species. Andalusia. 
A. vesfigialis Rott. (Vol. 3, p. 36, pi. 7 i) (= valligera Hbn.). Hindwings rarely quite white, generally vestigialis. 
grey, dusky, especially at margin, veins dusted with grey. A species that varies enormously in colour and 
markings. Quite black specimens are known and exceedingly pale, almost white ones, some with quite pale 
stigmata, almost without transverse bands, with extinct orbicular stigma etc. In consequence a large number 
of aberrations have been named (compare main Volume). Of new denominations we are enumerating: ab. 
