202 BRITISH MOTHS 



DESCRIPTION OF PLATE XLIII. 



Insects. — Fig. 1. Cer.atopacha fluctuosi (tl)e satin carpet). 

 " Fig. 2. Ceratopacha duplaris (tlie lesser satin carpet). 



" Fig. 3. Ceratopacha diluta (the lesser lutestring). 4. The Caterpillar. 



" Fig. 5. Ceratopacha Or (tlie poplar lutestring). 9. Tlie Caterpillar. 



'* Fig. 6. Ceratopacha octogesima. 



" Fig. 7. Ceratopacha flavicornis (the yellow horned). 8. The Caterpillar. 



, " Fig. 9. Ceratopacha liJcus (the frosted green). 10. Tlie Caterpillar. 



C. Fluctuosa, C. Duplaris, and C. Ridens, are from the cabinet of Mr. Marshall ; C. Octogesima from the cabinet of Mr. Bentlcy ; and the 

 others are from specimens furnished me by Mr, II. Douhleday. The caterpillars are from Hiibner. H. N. H. 



CERATOPACHA, (CEROPACHA, Stephens, TETHEA p. Curtis.) 

 The genus Tethea of Ochsenheimer, or Cymatophora of Treitsclike, having been found to require subdivision, 

 it is unfortunate that modern Lepidoptorists have not adopted some regular plan in respect to the nomenclature 

 of its subdivisions : as it is, each has adopted a different mode of dealing with the old synonymous names, and 

 consequently, each has a different series of names for the groups in question. As the insects composing the 

 present group are not the types either of Ochsenheimer or Treitschke's generic names, I have follovred Mr. Stephens 

 in preference to Boisduval. In this group, the fore wings are either obtuse or angulated, with several waved 

 transverse lines ; the antennte simple in both sexes, stotit, short, and rather depressed in the middle, very 

 pubescent beneath ; the palpi horizontally porrected, with the terminal joint rather long and slender ; the 

 abdqmen variable in thickness ; the thorax rather broad, with the tippets elevated so as to appear bifid. The 

 caterpillars are pale-coloured, punctured and depressed, the head broad, cordate, and variously coloured. 



SPECIES 1.— CERATOPACHA FLUCTUOSA. Plate XLIII., Fig. 1. 



Synonyme. — JVoctua fluctuosa, liahaeT ; Haworth ; Treitsclike; Curtis; Stephens; Wood, Ind. Ent. pi. 14, fig. 328. 



This species varies from 1^ to 1--. inch in tlie expanse of the fore wings, which are of an ashy-white 

 colour ; the base pale with a brown striga and spots, beyond which is a broad brown straight bar, extending 

 beyond the middle of the wing, in which are two flexuous black strig®, and a black lunule, externally white, 

 occupying the place of the outer stigma ; beyond the fascia is a clear brownish striga finely denticulated, the apical 

 margin dusky, in which is a pale denticulated striga ; the anterior stigma is obsolete ; the hind wings are whitish, 

 with a pale dusky fimbria ; the body is slender. 



The caterpillar is yellowish white, with a dark brown head ; it feeds on the birch. The perfect insect appears 

 about the middle of June, frequenting the skirts of woods in the southern counties. 



SPECIES 2.— CERATOPACHA DUPLARIS. Plate XLIII., Fig. 2. 



Synonvmes. — Tinea duplaris, Linnseus ; Haworth (Noctua d.) 



Stephens ; Wood, Ind. Ent. pi. 14, Sg. 3i9. 

 Ntictua bicnlor, Kspcr. 



Noctua bipuncta, Bnikhausen; Treitschke; Boisduval ; Gue'nee; 

 Doublcday. 



yocta undosa^ Hiibner. 

 Noctua hinotata, Fubricius. 



This species varies from 1^ to lA inch in the expanse of the fore wings, and is very closely allied to the 

 preceding insect, but it is smaller and darker in the colour of the wings, and has two small black dots in 

 the place of the outer stigma instead of the dusky lunule ; the apex of the fore wings is much more broadly 

 saturated with dusky brown. The caterpillar is yellowish green, with a red line down the back, and reddish- 

 brown head ; it feeds on the poplar. The moth appears at the same time and places as the preceding, but is 

 much more common. Darenth, Ripley, Petworth, New Forest, Epping, &c. 



