84 tllE entomologist's UECOKb. 



black-brown, Mcianari/ia (jalatlwa, Bourg d'Oisans, no variation 

 except in depth of black markings. 



Sphingides. — 2Iacr(i(/l(issa stcUataruii} , Grenoble and Bourgd'Oisans. 



Zyg.-enides. — Zi/i/at'jia trcoisalpina, Bourg d'Oisans ; Z. cruhDis, 

 La Grave ; Z. jilipeiuJiilac and Z. rarnioUca from Bourg d'Oisans. 



Cheloniides. — Lithosia ctniiiilana, Bourg d'Oisans ; ('alliiiniia 

 miniata, on the Mont Cenis Pass ; Calliinorjiha Jwra, Bourg d'Oisans 

 [and Torre Pellice] ; Nemeophila rmsida, Grenoble ; iSpilosuiiia 

 iiwHt/iastri, Grenoble. 



Lasiocampides. — (Tiistnijiar/ia querclfolia, $ , at light, at Bourg 

 d'Oisans. 



The following Noctuides were captured at Grenoble : — Gonoptcya. 

 Ubatri.r, Jvudidia f/h/phica and Aiinip/nla trahealis, whilst the 

 Geometrides taken in the 'neighbourhood of the same town com- 

 prised : — Jlniiiia lutcolata, Mctmcainpa man/aritaria, Nevioria riridata, 

 llijria aumraria, Ast/ieiia candidata, Acidalia nrnata, Strenia clathrata, 

 S. iiiniKirata, Kiuaturfja atoviayia, Aspilatcs fillraria, Lomanpilix 

 )iuin/inata, (Jaiiiptdf/rcniDiia hillncata and Ortludltlia hipnnctaria. The 

 Pykalides included Pj/ralis i/laucinalis, llcrhida ccsjntalis, llotijs 

 fiificalis and Spilodea ciiictalis. Of the Tortricides I have Tcni'^ 

 contaiiiinaua from Bourg d'Oisans, whilst Ypomnncuta padella and 

 Ilit/n/ia carnclla were also taken in the same locality. 



I have inserted in brackets a few Italian localities, where I 

 obtained the species, both in Dauphine and Italy. 



Hydriomena furcata (Hypsipetes sordidata) : Its Synonymy, 

 Variation, Geographical Distribution and Life=history. - 



By LOUIS B. TKOUT, F.E.S. 



The whole generic grouping of the fMientiiduc Avill certainly 

 require overhauling in the light of modern ideas, but I have as yet 

 done no work which would justify my taking this question into con- 

 sideration this evening. As some of you may be aware, Lederer got 

 over the difficulty presented by the assemblage of tolerably closely 

 allied genera by lumping them nearly all together as Cidaria ; but it 

 is quite certain that this imsatisfactory arrangement will not be 

 allowed to stand permanently. Professor A. K. Grote, in a recent 

 comnnmication to the Entomological Society of London, pointed out 

 two landmarks in what he calls the " Cidarian wilderness," but as for 

 the rest, I would venture little or nothing. 



I believe, however, that w'e have in the so-called genus Ihjpsipctcf, 

 (by error " Ypsijndes"), Steph., a really natural little sub-division, 

 comprising our three European species (all British), a few North 

 American, and one or two others ; being very closely associated in 

 larval form and habits, as well as in the imago state. This genus 

 is the Hijdrunncna of Hiibner {Vcrzeichniss, p. 322) and Packard, 

 though the former author included one species, aqmata, which is not 

 congeneric. Prof. Grote kindly writes me that this name {Hi/dridiiima) 

 appears available, and should be restored. 



As to the individual species selected for present consideration, 

 certainly the commonest of its genus in this country, it was named 



* Abstract of Paper read before the North London Natural History Societv, 

 Oct. 22ud, 1890. 



