124 THE entomologist's recoed. 



them forming a trapezoid narrower at its lowest part ; the subterminal 

 line is composed of groups of blackish atoms, separated by rounded 

 spots. The median stigmata (reniform and orbicular) are very dis- 

 tinct, large, regular, darker, encircled Avith paler. The median space 

 is sometimes a little darker than the rest of the wing. The hind- 

 wings of the same colour as the fore-wings, or a little more rosy, with a 

 line and a faint blackish subterminal shade. Beneath, the four wings 

 are of a pale yellowish-flesh colour, unicolorous and shiny. The 

 species occurs in France, Austria and Hungary in August and Sep- 

 tember. The caterpillar is of a reddish-yelloAV colour, marbled with 

 brown, with a fine median line; the trapezoidals whitish; the spira- 

 cular line is a little paler than the ground colour, and carries the 

 spiracles, which are black ; "the head and the plate on the shoulder 

 (1st thoracic segment) are of a deep brown. It feeds in May and 

 June on different low plants " ( Noctuelites, vol. v., p. 405). There is 

 a figure of the insect by Mr. Frohawk in the Entinnohxjist for 

 December. 



On the Identification of Acidalia dilutaria, Hb. 



I.— By LOUIS B. PEOUT, F.E.S. 



Thanks to the energy of Mr. Tutt and Dr. Chapman in collecting the 

 needful material during their recent holiday in the Tyrolean Alps, I 

 have had the satisfaction of clearing up the one dark place which re- 

 mained after my synonymy investigations in the "Dssmta'' group, 

 reported in the Record, vol. vi., p. IBl. 



That dark place, it may be remembered, was with regard to the iden- 

 tity of Hiibner's figure 100. Mr. Tutt has all along maintained that it 

 was not a representation of intcrjectaria, Bdv. ; and I wrote {loc. cit., 

 p. 132), " I am half inclined to agree with him that it does not 

 represent either of our British spesies, l)ut there is certainly no 

 * Continental species which we do not get ' to which it could be 

 referable." My very slender ac(iu:iiiitance with the range of variation 

 of one of the Continental species which we do get, caused me to over- 

 look the true solution of the enigma, and I shall now proceed to show 

 that Hiibner's dilutaria is but another form of holosoicata, Dup. 



The Continental material placed in my hands for study by Mr. 

 Tutt consisted of a series of 15 specimens, mostly in rather poor con- 

 dition, taken at INIendel on July 30th and August 2nd ; and a lovely 

 and variable series of 32 in fine condition, from the Sorapiss, in the 

 Val d'Ampezzo, on August 10th and 12th. The worn specimens proved 

 on investigation to be, as Mr. Tutt had conjectured, A. humiliata ; 

 though amongst them there are a few good specimens of A. holosericata, 

 which, I suppose, was then just emerging. Concerning the Horapiss 

 species (which is entirely unmixed with A.hwuiliata), Mr. Tutt said, on 

 handing them to me, that "he believed we had here the missing 

 A. dilutaria, Hb. ; " I replied by suggesting that they were vars. of J. 

 lioloHcricaia ; as it turns out we were both right, and may shake hands 

 on it and congratulate one another on our acumen ! 



Mr. Tutt's fine Sorapiss series contains only one or two specimens 

 which quite agree with Duponchel's description, " Avithout discoidal spot 



