202 
EUPITHECIA. By L. B. Prout. 
innoiata. E. innotata Hufn. (Vol. 4, pi. 12 1). Dietze, who lived, as he said, “in a district where this appears, in 
the larval stage, annually in millions", undoubtedly had (and used) exceptional opportunities for studying it, 
and I continue to follow in general the arrangement and nomenclature of his fine monograph. But I must 
protest against the continued use of the name jraxinata Crewe for the “gen. aest." of Continental Europe, for 
it obscures important bionomic facts. I have not yet obtained any evidence whatever that jraxinata in Britain 
ever originates as a summer brood of innotata and suspect that the latter — so local on our coasts — is here 
a recent introduction while the single-broaded ash-feeding jraxinata is with us an old-established subspecies, 
rotundaia. notwithstanding that it has not yet begun to show any structural divergence. — ab. rotundata Bastelb. Fore¬ 
wing less elongate, with definitely rounded apex; discocellular and median vein blackened. A $ ex ovo, Mainz. 
suspectata. — gen. aest. suspectata Dietze (18 d) is perhaps the oldest name which can be legitimately applied in a com¬ 
prehensive sense to the small and on an average more weakly marked 2nd brood. I figure from Darmstadt a 
meridionalis. bred $ of this blackthorn-fed form, but they are not always so small. — meridionalis Mab. (17 h), according 
to Mabille a race in S. Europe and Corsica, is also more unicolorous grey than the type-form of Germany 
and N. Europe, the subterminal and its accompanying white markings much weaker. Dietze adds that the 
cell-mark is particularly distinct. The distinctions, however, seem to be no more than slight tendencies. — ab. ( ?) 
contrada. contracta Dietze is a small form from Syr-Daria and district, also suspected of belonging to the summer brood. 
distinguishable by its straighter, sharply angled postmedian line, which recalls that of unedonata. But other 
unicolor, specimens from the same source are like the European. — ab. unicolor Prout. A small second-brood form, of 
almost absolutely unicolorous dark grey; the cell-mark deep black; very faint indications of some of the 
principal markings discernible with close attention. Bred in Durham. Perhaps a superfluous name, but it 
lamarisciata. seems to represent the nearest approach to a melanic form yet known in the present species. — form, tamari- 
sciata Frr. (Vol. 4, pi. 12 1). We have not advanced much further in our understanding of this form, but it 
cannot be ignored; I endorse Dietze's words that “in our quest after the causes of the origination of species, 
one is bound to mention the unfinished and to test it with exactitude". It is interesting to British entomologists 
that one or two tamarisk-feeding colonies of innotata (sens, lat.) have been found to occur on the north coast 
of Cornwall where — so far as I have heard — we do not get the Artemisia form. The more leaden-grey tone 
of the moth (“blaugrau" is a misprint for “bleigrau"), as compared with jraxinata, is said to fade with age, 
jraxinata. leaving practically nothing whereby to distinguish the two in this stage. — fraxinata Crewe (Vol. 4, pi. 12 1). 
The necessity of restricting this name to the single-brooded, ash-feeding race of Britain has been emphasized 
above. The brown, generally small 2nd-brood insect which is sent us from Leipzig, etc., under the name bears 
no special resemblance to it. On the other hand, a few T references (e. g., Laplace, Verz. Hamburg-Altona Grofi- 
grisescens. schmett., p. 107) suggest that the true jraxinata does also occur on the Continent. — grisescens Petersen ( = 
petersenaria Wnukovsky) has really a more “blue-grey" tone than typical innotata. It is said to be constant 
in Esthonia, for which reason Petersen in 1909 named it as a good race (subspecies); later (1924), with more 
than a hundred before him, he confirmed the validity. The new name was proposed in order to avoid a collision 
with the grisescens form of assimilata (Vol. 4, p. 286), but it is not yet demonstrated that that is anything more 
uliata. than an “ab. loc.”; if it is, then that and not this, which dates from 1913 only, is the preoccupied name. — uliata 
Stgr. (see Vol. 4, p. 294). A synonym is ulicada Dietze (1910). — For the possibility that some of the assumed 
Asiatic forms of the present group really belong to nanata, see under n. kozhantschikovi. 
praesignata. E. praesignata Bohatsch (= insignata Stgr. ined., Bohatsch. nom. praeocc.). Although I have not been 
able to study this Eupithecia I think it must be separated from innotata. 
parallelaria. E. parallelaria Bohatsch (= magnaria Stgr. inech, nom. praeocc.) (18 d). In describing this (Vol. 4, 
p. 294) I placed it with innotata, following Bohatsch and (as 1 supposed) Dietze; but I note that the latter 
considers it to have crossed the “solstitial point" and to incline more to unedonata , especially as regards some 
of the forms. It was described from Samarkand, but has probably a wide distribution in Central and West 
Asia. According to Amsel, very large specimens from Kiriath Anavim and Kasr el Jehud, taken in March, 
agree almost exactly with those from Turkestan, both superficially and in the genitalia. We figure a $ from 
the Alexander Mountains, one of 5 weakly marked examples determined, I believe, by Dietze. Extremely 
similar to the species which I have called decipiens (infra), but Petersen says the genitalia are scarcely dis¬ 
tinguishable from those of innotata. 
unedonata. E. unedonata Mab. (Vol. 4, pi. 13 i). Another foodplant, according to Chretien, is Thymelaea hirsuta. 
Notwithstanding the very wide distribution of this species (given as S. Spain and Algeria to Mongolia) and 
hybrida. its undoubted variability, no definitely racial differences have yet been demonstrated. — hybr. hybrida Dietze 
( Prout restr.). As it is impossible to employ the same name for both the crossings (see Vol. 4, p. 294), I restrict 
Dietze’s name to the one which he described first, namely innotata $ x imedonata §. These emerged in May 
rcciprocata. and were more grey than brownish, the markings not at all clear. — hybr. reciprocata nov. ( unedonata <§ x 
innotata 2) did not appear until late August and September and is very sharply marked and more brownish. 
