144 European Butterflies and Moths. 



genus ii. — tiiyatira (ochs.). 



Fore-wings more rounded at the tip tlian in Gonophora ; the antenna filiform in both 

 sexes ; the palpi straight, and extending beyond the head. The side tufts on the abdomen 

 in the male of Gonophora are absent in Tliyatira, and the middle pair of tibiae are not woolly. 

 The only European species, * T. Bails, Linn, (the Pcadi-blossom 3Iolk), has dark greenish- 

 brown fore-wings, with five round spots, either rosy or whitish, with the centres brownibh ; 

 placed at the base ; in the centre of the inner margin ; at the hinder angle ; at the tip ; and 

 on the costa before the tip. The hind- wings are brownish-grey. Expands about \% inches. 

 Common throughout Europe and Northern and Western Asia. The larva is chequered with 

 brown and rust-colour, with a bifurcated excrescence on the 3rd segment projecting forward, 

 and five tubercles on segments 6 to 10. Habits, times of appearance, and food-plants the 

 same as G. Derasa. The moth and larva are figured at PI. 32, Fig i, a, b. 



GENUS III. — CYMATOPHORA (TR.). 



Body stout, with narrow wings, or slender, with broad wings ; fore-wings brownish or grey, 

 with two indistinct dark bands before and behind the middle, each composed of two dark 

 wavy double stripes, and a pale wavy line before the hind margin. The antennre are not 

 ciliated, the collar is very small, and the abdomen is crested behind on the sides in the male, 

 but not above. The larvae are tapering behind, with a large round head, and are found 

 between united leaves in summer. The moths appear in spring, and may be dislodged from 

 the trunks of young trees. The genus may be divided into two sections. 



A. Body stout, head contracttd, abdomen extending beyond the anal angle of the hind-zoings ; 

 the legs and palpi very hairy. The moths (except Flnetiiosa) are double-brooded, and appear 

 between April and September, and the larvae are met with in summer and autumn. 



* I. C. Or (W. v.). — The fore-wings are brownish ashy-grey, with two dark transverse 

 stripes converging towards the costa, each composed of four black lines. Between these is 

 a small round spot, and a whitish 8-shaped one, filled up with dusky. The tips are divided 

 by a black streak, and the hind-wings are brownish-grey. E.xpands about ih inches. Common 

 in Northern and Central Europe and Northern Asia. The larva is pale green, with a dull 

 dark line on the back, and a dull whitish line on the sides. The head is brownish-yellow, 

 and the mouth is black. It feeds on poplar. The moth and larva are figured at PI. 32, 

 Fig. 2, a, b. 



* 2. C. Ocularis (Linn.). — Differs from C. Or by the paler reddish ash-colour of the fore- 

 wings, and the hinder transverse band only consists of two or three lines, approaching the 

 first band on the costa. The two spots are more distinctly filled up with black ; and the 

 hind-wings are paler, and have a more distinct pale transverse stripe. E.xpands from i^ to 

 \\ inches. Common throughout Europe, and Northern and Central Asia. The larva is dull 

 milky-white, with an obscure pale line on the back ; head brownish-yellow, with the mouth 

 black, and two small black spots near it. It feeds on aspen. 



B. Body slender, the head not contracted ; the legs and palpi are thinly clothed tvith hair, 

 and the abdomen docs not extend beyond the anal angle. 



* 3. C. Duplaris (Linn.). — The fore-wings are brownish-grey, pale grey at the base and 

 beyond the middle, with dark wavy lines, and two black dots one above another, instead of 

 spots; hind-wings brownish-grey, with a pale transverse stripe. Expands about i} inches. 



