50 
AGROTIS. By Dr. A. Corti and Dr. M. Dratjdt. 
duosigna. A. duosigna Hmps. (Vol. 3, p. 33, pi. 7 d) should certainly be classified here. 
scotacra. A. scotacra Filip], (6 b, co-type E) has great resemblance to corticea Him., with the exception of the 
the antennae, but is really closer to exclamationis. It differs from the latter species in the structure of 
genitalia (Filipjey); scotacra is usually darker, more clearly marked than exclamationis, it has a darkening of 
the costa, which is almost always present, but which is absent in exclamationis. The hindwing of the $ of sco¬ 
tacra is generally much darker than in exclamationis and often a distinct band is visible before the outer 
margin. On underside of hindwing there is usually a heavy transverse band and very distinct discal spot. 
Amur (Vladivostock), Ussuri territory. Early stages unknown. 
informis. A. informis Leech (Vol. 3, p. 33, pi. 7 c). The illustration is not good and a fresh illustration of a $ is 
given here (6 b). Warren classified this species to the Euxoa, Hampson to the Feltia (Agrotis) and the latter 
is probably correct. It may only be a race of exclamationis and is in any case closely related to same. It is 
larger, glossy with reddish to violet-brown sheen, transverse lines double, whitish, outer area often dusky 
brown, so that it appears much more brightly marked than exclamationis. Early stages unknown. Amur ter¬ 
ritory, Japan. 
ripae. A. ripae Hbn. (Vol. 3, p. 41). In the first instance it is necessary to correct the illustrations on plate 
9 a, b, and c. The illustration on 9 a as ripae , should be desillii, whilst that on 9 b weissenborni <J, the 2 
= ripae Hbn., 9 b and c as desillii represent iveissenborni. The illustrations on 9 b as desertorum G and $ 
should be a shade paler, ripae varies extraordinarily in colour and markings, nevertheless some races can 
weisseribor- be definitely separated. - weissersboini Frr. (= obotritica Schmidt) appears to be the predominant form in 
n h certain districts, for instance in Denmark, southern Sweden, Schleswig Holstein, the east coast of Prussia. 
desertorum. - desertorum B. (= deserticola Ev.) is the race from S. Russia, the Crimea, Egypt, Ili territory. It is the 
alexan- pale form of ripae with white ground colour and very distinct markings, which certainly vary. — alexan- 
drensis. drensis Bak. is a form that is close to desertorum, with indistinct stigmata, but 2 very pronounced trans¬ 
verse lines. I have a specimen of this type, which quite corresponds to the illustration and which was cap- 
wagneri. tured at Dekela in Egypt. — wagneri /. n. ( Corti i. 1.) I denominate a new silvery grey form from Asia Minor 
(Ak-shehir) and probably from Syria, which may prove to be a genuine race. — desillii Pier, (recte: “desillesi”) 
is the main form from the South coast of England, Normandy, Morhihan, and Vendee. However similar speci- 
albovenosa. mens are taken also in Hamburg, Schleswig Holstein, Sweden, etc. — albovenosa Tschtv. (= duskei Gr.-Gr. i. 1., 
chamyli B.-H. i. 1.) (6 f) a very nice race, which is particularly striking by the fine black margin, consisting 
of lunules, before the fringes of hindwings and by the very distinct discoidal spot of the hindwings, which is 
especially prominent on the underside. Siberia, the Gobi desert, Sajan, Altai, Transbaicalia, Uliassutai. — 
Early stages: ova not described. Larvae typical subterranean, that is to say sand larvae, living chiefly on 
various plants on salty, sandy shores. Pupae yellow-brown with 2 cremaster spines, ripae is a coastal in¬ 
sect, as far as the main form and the forms weissenborni and desillii are concerned. It only rarely occurs 
at any considerable distance from the sea coast, ripae and the 2 races named occur in Belgium, Holland, France, 
southern England, Denmark, Sweden, Norway, the coast of North Germany and the Black Sea, also in Bul¬ 
garia. It flies from June to September. 
nili. A. (?) nili Baker (Vol. 3, p. 31, pi. 12 f) is an uncertain species and perhaps only a second generation 
of desertorum. Staudinger already supposed same to be a variety of ripae. Pungeler on the other hand 
deemed nili to be a form of trux Hbn. Andres and Seitz consider nili to be a genuine species. According 
to the latest investigations the specimens bred by the late Ad. Andres and which were mentioned in the 
“Senckenbergiana” Vol. VI, p. 32, 1924 are not to be identified with nili. Corti, to whom I had sent my 
3 specimens for examination, wrote to me that in his opinion this was a genuine species, closely resembling 
exclamationis. I therefore describe this insect, as follows: 
adolfi. A. adolfi sp. n. (7 a). Generally slightly smaller and more thickset than exclamationis, very similar in 
the arrangement of markings to same, but the markings with the exception of the stigmata are very deli¬ 
cate and faint, the transverse stripes can only be imagined; claviform stigma is absent or minute, only faintly 
indicated in outline; a fine pale line before the fringes; ground colour silvery grey, yellow-grey to reddish 
yellow, variable, scales smooth and slippery. Hindwings of H white, of $ with dusky shading widely at 
margin. Larvae subterranean, pupating in October and emerging 3 weeks later. Egypt (Mariout steppes). 
Described from 1 <J, 2 $2 in the collection of Dratjdt. 
farinosa. A. farirsosa Stgr. (Vol. 3, p. 41, pi. 9 c). In the illustration in the Main Volume the markings parti¬ 
cularly of the claviform, orbicular and reniform stigmata should be rather more distinct; hindwings of $ type 
are whiter, the $ has grey hindwings. Ili territory, Issyk-kul. 
eugramma. A. eugramma Hmps. (Vol. 3, p. 47, pi. 10 g). Hampson classifies the species under Agrotis, Warren 
under Rhyacia. The latter is certainly incorrect because of the very long spurs on the fore-tibiae. The species 
is also not connected with patula Wlcr. ; the antennae are too different. In the illustration in the Main Volume 
the inner transverse line is much too dark, it is actually double, but the inner line is pale; the reniform 
stigma should stand out more prominently and be much darker. The sagittate marks are much paler. One 
$ in the collection of Corti from Ta-tsien-lu, West China. 
