200 



BRITISH MOTHS. 



caterpillars, just captured by himself, and 

 these continued to feed for nearly a fortnight 

 longer. 



" The CATERPILLAR, when full-grown, is 

 nearly an inch long, rather slender, of uni- 

 form hulk throughout, rather flattened be- 

 neath ; head rather large and rounded. There 

 are several varieties in colour and markings, 

 but as all the captured specimens sent to us 

 by Mr. Brown were of one variety, I have at 

 Mr. Buckler's suggestion taken this as 



" Far. I . Ground colour a dull olive-green, 

 except the spiracular region, which is a pale 

 yellow ; a thin dorsal line of a darker tint of 

 the ground colour ; sometimes there is a simi- 

 lar line on either side of it,, and sometimes 

 these lines appear only as two olive-brown or 

 purplish wedges just before each segmental 

 fold ; sub-dorsal line greenish gray with darker 

 edgings; the spiracles are black, and above 

 and just behind them, in the yellow spiracular 

 stripe, are suffused blotches of the colour of 

 the dorsal edges. 



" Far. 2. Ground colour of a fresher, 

 more yellowish green, with the dorsal region 

 of a full green ; spiracular region yellowish, 

 and the blotches in it of darker purplish tint 

 than in No. 1, and more clearly defined in 

 shape. 



" Far. 3. Ground colour greenish white; 

 three very fine purplish brown or blackish 

 lines d-iwn the back, of which the central one 

 becomes wider and darker just before each seg- 

 mental fold, and the other two across the fold ; 

 sometimes these lines are interrupted, and ap- 

 pear only in the thickened parts ; sometimes 

 again there is a transverse band uniting the 

 base of all three of these dashes; the sub- 

 dorsal line paler than the ground, but edged 

 below with the dark colour ; the spiracular 

 region of the ground colour, with the wedge- 

 shaped blotches not only above the spiracles, 

 as in the other varieties, but also with similar 

 ones below again, and in some specimens the 

 spiracular stripe itself interrupted by these 

 pairs of upper and under blotches being par- 

 tially united. 



" The anal flap and the anal pair of clappers 

 dark blackish green or purplish brown. 



"Varieties 2 and 3 were reared from the 

 egg on Erysiiman clieirantlioides. 



" The Iarva3 went underground to undergo 

 their final change." 



The Morn appears on the wing in June, and 

 has been found in two localities only ; the first 

 specimen was taken at Thetford by a Miss 

 Clarke, and was unique for many years in the 

 cabinet of the late Mr. Curtis, where it stood 

 under thenameof Mima Clarkiata : it wassub- 

 sequently named M. niveata, by Mr. Stephens. 

 Mr. Doubleday afterwards received a pair 

 among a number of insects collected by a boy 

 of the name of Reynolds, a son of Mr. Reynolds 

 the bird-stuffer. The late Mr. Bouchard de- 

 termined on finding the insect, and Avithin the 

 last few years supplied some of our cabinets. 

 It has also been taken at Brandon. Its 

 economy was unknown until discovered last 

 year by Mr. Brown, of Cambridge, as recorded 

 above. (The scientific name is Lithostege 

 griseata.) 



Ofo.--Guenee considers this moth identical 

 with the Phahena asinata of Fubricius. 



376. The Streak (Chcsias ,parliatd}. 



376. THE STREAK. The antenna} arc sim- 

 ple in both sexes ; the palpi long and porrected 

 in the form of a beak ; the fore wings are long, 

 obtusely pointed, and narrow, with a shining 

 silky lustre, and of a grayish brown colour with 

 a very pale, almost white, stripe extending 

 from the base to the extreme tip ; there is also 

 a transverse series of three almond-shaped 

 blotches across the middle of the wing; these 

 are very nearly concolorous with the general 

 area of the wing, but frequently have pale 

 margins and pale centres, which make them 

 conspicuous ; the white stripe passes between 

 the first and second of these blotches ; parallel 

 with the hind margin is a pale oblique line 

 accompanied by a broader rust-coloured stripe : 



