iO-2 DIASTICTIS. By. L. B. Pboxtt. 



conspicuous than in most Geometrids. On gooseberry, wauarin is distributed in Northern and Central Europe, 

 Central Asia and N. America, flying in July. 



eostimacula- I. costimaculata Gh-aes. Very similar to wauaria, forewing relatively somewhat bioader, light claj 



^' yellowish, somewhat darker distally, median costal spot less oblique, not forming with the cell-spot a V-shaped 

 mark, underside brighter, golden-yellow. Amurland. 



sparsaria. I. sparsaria Hbn. { = tephraria Bsd., acquiaria Mill.). Although known since the days of HtJBNEB, 



this species has remained a rarity, confined to a few localities in N. and Central Italy. Whitish grey with 

 darker irroration, discal and terminal black dots and fine dark lines, accompanied by brown shading; the post- 

 median of the forewing makes two very slight curves, separated by a very slight angle or bend opposite the 

 discal dot. Hindwing very bluntly (scarcely noticeably) elbowed at the 3rd radial. June and again in late 

 summer. 



gesiicularia. J, gesticularia Hbn. (= graellsiaria Feisth.) (23 h) may be known by its very pale colour, rounded hind- 



wing, slender greyish lines, the median straight, present on both wings, the postmedian marked with dots on the 



Inquinata- v-eins. — inquinataria Bsd. is a very small form from Andalusia, according to Guenee with rather less straight 

 ^^'^" median shade. I have not seen it. — The larva is said to feed on oak. gesticularia inhabits Spain, Portugal 

 and Algeria, May — July. 



contamina- I. cotitaminaria Hbn. { — ? numerata F.) (23 i). Forewing slightly more pointed, hindwing with an 



^^' appreciable sinus in middle of distal margin. Rather more ochreous, with stronger irroration, the lines more 

 brownish, less straight, the postmedian stronger, usually a brownish smear at the median branches, running 

 towards the distal margm. Central France to Central Italy. 



julvaria. I. fulvaria Vill. (= bruimeata Thnbg. nee Goeze, pinetaria Hbn., quinquaria Hbn., sylvaria Curt.) 



(23 h) differs from all the other Itame species in its bright ochreous colour. In the ^ the lines are very in- 

 conspicuous, on account of an almost uniform red-brown irroration; m the 2 they are well expressed. — In 

 ""'^OT'd^ia' ^^' unicinctata Strand the median line, is strong on both wings, but there are no other markings. — sordida 

 Btlr. (described as Cleogene) is rather duller coloured, weakly marked, the abdomen dorsally more tinged with 

 fuscous. Japan. — ■ Egg oval, pink, with strong, regular hexagonal reticulation and small bright white knobs 

 at the angles. Hibernating. The larva feeds up in the early months of the year on Vaccinium, especially V. 

 uliginosum. It is nearly cylindl-ical, but somewhat folded laterally, the colouring arranged in a multitude of 

 longitudinal lines, mainly green dorsally but with reddish-brown subdorsal stripe, white tinged with yellow 

 laterally, dirty whitish ventrally. N. Europe, the moutains of Central Europe, parts of Siberia, Japan and N. 

 America, thus very widely distributed. 



' B. 5 w i n g s r u d i m e n t a r y (Dysmigia Warr.). 



loriearia. I. loricaria Ev. ( = vinctaria Z., julia Hulst) (23 i). The (J shows a delicate light violet-grey ground- 



colour which is not infrequent in this genus, but is characterized by the row of rust-coloured spots "which pre- 

 cedes the subterminal line. The 2 wing-stumps are rather more brownish, with distinct discal dots and lines. 

 Egg apparently similar to that of ivauaria but less elongate, the cells between the reticulation less deep. Local, 

 Scandinavia to the Ural, Kentci Mountains, N. E. Siberia and N. America. Flies in July. 



152. Genus: Diastictis Hbn. 



Differs from Itame (which, however, could probably be sunk to it) in the longer paipus and more pointed 

 forewing. 



ariesiaria. D. artesiaria Schiff. (= festucaria Hhn.) (23 i). Coloration of the preceding, recognizable by its shape, 



the nearly straight, yellowish -white' postmediaii line and the less developed, more irregular rust-coloured shades 

 beyond (strongest in the middle of the wings). — The egg hibernates. Larva blue-green, with dark, whitish- 

 edged dorsal line, whitish subdorsal and yellowish lateral stripe. On Salix, in May. Moth in July, occasionally 

 later. Central Europe, Russia, the Caucasus, Kentei Mountains and Amurland. 



sermaria. D. serenaria Stgr. (24 c). Very near the preceding, somewhat broader-winged, larger and lighter, with 



better developed dark transverse markmgs, especially a fuscous band (more mixed with rust-coloin^ in the 

 middle) distally to the postmedian line. Uliassutai district. 



latefasciata. D. latefasciata Stgr. is doubtfully referred to this genus and I have no personal knowledge of it. Not 



quite so large as serenaria, forewing dirty ash-grey with very broad dark dull brown median band, not quite 



