LEPIDOPTERA. 5 
(the three spots on the middle of the wing, and the three transverse 
lines, vary only in intensity or sharpness of design); posterior wings 
rather broad, of dingy colours (Catocala and a few others differ, forming 
a section more allied to the Geometrina). 
Though few would mistake a Noctua for 2 Bombyz, it is not 
easy to define in words distinctive characters which shall be con- 
stant. 
4. GEOMETRINA, Stainton. 
Geometre, Boisduval. 
Geometride, Stephens ; Herrich-Schdffer. 
Antenne setacee (sxpe ciliate aut pectinate), thorace longiores. Ocelli 
nulli. , 
Corpus gracile. 
Pedes postici mediis sensim longiores. 
Ale ample, tenere, posteriores late colorata. 
Larva pedibus 10 instructa. 
Antenne setaceous, frequently ciliated or pectinated, longes than the 
thorax. Ocelli none. Body slender (Boarmia and Biston have the body 
thick, and thereby resemble the Bombycina, from which they are however 
distinguished by the larvee). Wings broad, of slight structure, the pos- 
terior gaily coloured (those species which have the posterior wings 
covered in repose have only the rudiments of markings on the project- 
ing inner margin). Larva with ten feet (in some there are one or two 
pair more of ill-developed ventral feet; otherwise the larva gives the 
most certain character of this group). 
5. PYRALIDINA, Stainton. 
Crambides, Herrich-Schdffer. 
Pyvalides et Crambides, Guénée. 
Pyralidee et Crambidee, Stephens. 
Antenne setacee, rarius pectinata, thorace plus duplo longiores. Ocelli 
plerisque. 
Corpus gracile, elongatum. 
Pedes elongati, posteriores reliquis longiores. 
Ale longius triangulares, rarius subparallele, mediocriter ciliate, poste- 
riores picle, tribus rarius duabus venis subdorsalibus liberis. 
Antenne setaceous, but rarely pectinated (Herminia), more than twice 
the length of the thorax. Ocelli in most (the ocelli are wanting in Cata- 
clysta lemnalis, the Galleria, Anerastia, etc.). Body slender, elongated. 
Legs long, the posterior longer than the others. Wings rather long, tri- 
angular, rarely subparallel (e.g. the Gallerie, Phycidee, and many 
