GEOMETERS. 



127 



spotted : the hind wings are of nearly the same 

 colour as the fore wings, with a crescentric 

 discoidal spot ; the hind margin and fringe 

 are as in the fore wings ; the head, thorax, 

 id hody are of the same colour as the fore 

 ings ; the body has a medio-dorsal series of 

 nible black spots. 



The MOTH appears on the wing at midsum- 

 ler, and is said to have been taken in Wales. 

 It seems to be very rare. I have never seen a 

 specimen, but there is one in the cabinet of 

 Mr. E. C. Buxton. (The scientific name is 

 Eitpitheriit eijenatn.] 



Obs. In this instance, my description is not 

 taken from the insect itself, but chiefly from 

 Herrich-Schaeffer's figures (Geom. Europ. 

 279, 280). 



belly has a central blackish OF purple line 

 running from tip to tail. It fe^ds indifferently 

 on almost every tree, shrub, and flower, in 

 August and September. In almost every 

 particular, it closely resembles the caterpillar 

 of E. vulgala. The CHRYSALIS is enclosed in 

 an earthen cocoon ; its body is slender, taper- 

 ing, and of a reddish or greenish yellow ; its 

 thorax and wing-cases yellow ; the latter more 

 I or less suffused with green." 



The MOTH appears on the wing in May, 

 and occurs in most of our English counties, 

 and also in Scotland, and Mr. Birchall says, 

 that in Ireland it is common and .generally 

 distributed. (The scientific name is Enpithecia 

 castiffata.) 



272. The Gray Pug (Enpitliciia castiyiita.} \ 2/3. The Golden Rod Pug (Enpithecia virgaureata). 



272. THK GHAY Pco.- The fore wings are 

 smoky gray, with several paler gray waved 

 transverse lines, three of which are double, that 

 is, intersected throughout by a distinct darker 

 line; the fourth line nearest the hind margin, 

 is single and more interrupted, and zigzag; it 

 is of the same gray colour as the rest, and has 

 a very indistinct pale spot at the anal angle ; 

 there is a small and rather inconspicuous dis- 

 coidal spot, and a slender interrupted black 

 line on the hind margin ; the fringe is smoky 

 gray, and longitudinally, but indistinctly in- 

 tersected by a darker line ; the hind wings 

 ure paler at the base, darker towards the hind 

 m;irgin, and have a small, but distinct, dis- 

 coidal spot ; the head, thorax, and body are 

 smoky gray. 



The CATKRPILLAU is thus described by Mr. 

 prewe: ''Long, slender, and tapering; the 

 ground colour is pale or dusky olive, or reddish 

 brown, with a chain of dusky lozenge-shaped 

 dorsal spots, becoming confluent on the anterior 

 and posterior segments; the segmental divi- 

 sions are reddish ; the body is thickly studded 

 with minute white tubercles, and clothed 

 more sparingly with short brislly hairs; the 



273. THE GOLDEX ROD PPG. Fore wings 

 brown-gray with a slight tendency to fulvous 

 iu the middle ; on the costal margin are 

 seveial, four to eight, short transverse black 

 markings, which extend distinctly only as far 

 as the subcostal ray, but are slightly indicated 

 on the disk of the wing ; there is a pale, irre- 

 gular, and interrupted line parallel with the 

 hind margin, and this terminates in a rather 

 conspicuous gray mark ; all the wing-rays are 

 more or less dotted with black ; there is also 

 a slender interrupted black line on the hind 

 margin, and the discoidal spot is dark and 

 conspicuous; the hind wings are of much the 

 same colour as the fore wings, but are paler 

 on the costal margin, and have a number of 

 short transverse lines on the inner margin. 



The folio wing description of the CATERPILLAR 

 was written by Mr. Crewe : 



" Fulvous, with a series of black dorsal tri- 

 angular spots ; becoming confluent towards 

 the head, and faint or altogether evanescent 

 on the caudal segment. On either side is a 

 row of conspicuous, slanting whitish or yel- 

 lowish stripes, forming a sort of margin to the 

 dorsal spots ; the belly is dusky, reddish in 



