DlCHONIA Dr V OB OTA. 2 1 5 



stigma ; the transverse lines are double, tlie elbowed line dentated, the subterminal line 

 interrupted, and generally only indicated by white dots ; hind-wings small and rounded. The 

 larv£e are thickened in front, and have four points behind. They hide themselves during the 

 day, and become pupaj in the ground. The only species, C. Culta (W. V.), has olive-brown 

 fore-wings dusted with greenish-yellow; black before the hind margin, and the nervures dotted 

 with white ; the transverse lines and the three large stigmata white, the latter marked with 

 dusky inside ; fringes chequered with brown and white ; hind-wings white, with the hind- 

 margin and a curved stripe brown. E.xpands from ij to 2 inches. A rather scarce insect, 

 inhabiting the southern half of Central Europe in June. The larva is green or brown, with 

 dark anchor-shaped marks on the front segments, and with dark angular spots on the sides. 

 It feeds on hawthorn and sloe in August and September. The moth is figured at PI. 38, 

 Fig. 2. 



GENUS XVII. — DlCHONIA (HUBN.). 



Small or middle-sized moths ; the fore-wings rather long, with the hind margin oblique 

 and moderately curved ; green or brown, with a black basal streak or spot, the elbowed line 

 dentated, and the subterminal line zigzag ; the three stigmata large and bordered with black ; 

 the claviform stigma connected with the elbowed line by a short streak or spot, the fringes 

 nearly festooned ; hind-wings rather long and slightly contracted below the tip, usually with 

 a pale stripe before the hind margin. The larvae live on oak in May, and change to pupae in 

 the ground ; and the moths appear in August and September, and may be taken at sugar. 



* \. D. Aprilina (Linn.). — Fore-wings pale green, with broad, single, black transverse lines 

 bordered with white ; the central shade spotted with black, and black arrow-heads on the sub- 

 terminal line. The fringes are white, interrupted with blackish, and the hind-wings are dark 

 grey. Expands from \\ to 2 inches. Common throughout Central Europe. The larva is 

 dirty white, varied with grey, with a whitish line on the back, dark-brown connected lozenge- 

 shaped spots, and a dark-brown stripe on the sides, spotted with whitish and indented above. 

 It hides itself by day in the chinks of bark. The moth and larva are figured at PI. 37, 

 Fig. 3, a b. 



2. D. ^ruginea (Hiibn.). — -Fore-wings dark violet-grey, the base of the costa and the two 

 stigmata whitish-green, with slender, dark, double transverse lines, a dash above the hinder 

 angle in front, and the middle of the collar golden yellow ; hind-wings white in the male and 

 grey in the female. Expands about i\ inches. It occurs in the southern half of Central Europe; 

 and the variety Mioleuca (Geyer), in which the fore-wings and thorax are uniform grey, is found 

 in South Europe. The larva is pale yellow, with spade-shaped spots on the back divided by 

 a white line, and two rather widely separated reddish-yellow stripes on the sides. 



3. D. Convergens (W. V.). — Fore-wings brownish-grey, the marginal area, the base of the 

 costa, and the two stigmata pale reddish-grey, with slender, dark, double transverse lines, and 

 a rust-coloured dash above the hinder angle in front ; hind-wings brownish-grey. Expands 

 about \\ inches. Inhabits many parts of Central Europe, but not Britain. The larva is pale 

 yellow above, with three whitish lines on the back and brown spade-shaped spots between ; 

 the sides are washed with brown, and marked with a yellowish-white stripe. 



GENUS XVIII. — DRVOBOTA (LED.). 



Rather small moths ; the shape and fringes of the wings as in DicJwnia, the fore-wings 

 grey or green, the transverse lines slender and double, the elbowed line slightly dentated, the 



