THE GENERA OF BRITISH MOTHS. 53 
Dianthecia Albimacula (the Beautiful Coronet, No. 6) is as rare as the preceding species is plentiful, the only 
British specimen being in the British Museum. It was taken near Birch Wood, Kent, in 1816. The Caterpillar, 
according to M. Guéené, is ochreous-yellow, with a gray line down the back, which has a series of short diagonal 
lines on each side of it. It feeds on Silene Nutans. 
The other species are D. Perplexa (the Tawny Shears) and D. Conspersa (the Marbled Coronet) ; of these 
neither are common, and D. Perpleca may be considered rare, though it has been taken at Bristol, Cambridge, 
Darenth Wood, and other places. 
The genus Eremobia. In this genus the males are distinguished by ciliated antenne, the abdomen is crested 
in both sexes, and the fore wings are undulated at the fringed edge. The Caterpillars are handsomely marked 
with conspicuous black dots and marks, and the head is large. It feeds, exposed, on different grasses. 
Eremobia Ochroleuca (the Dusky Sallow, No. 7) is the only British species. It appears in July, frequenting 
exposed heaths and commons, especially those of Kent and Surrey, but it is not abundant. The Caterpillar feeds 
on grasses, and is a conspicuous object from its bright bluish-green colour, with yellow lateral stripes and 
numerous black markings. 
The genus Polia. This genus, which, accerding to arrangements of English authors, contained till 
recently a number of species, among which were most of the largest and finest of our native Noctuide, has been 
restricted, in later arrangements, to a much smaller scope, and now, in fact, contains but four, and in some 
systems only two species, the others having been removed to Miselia, Eurois, and other genera. The insects con- 
tained in this genus, as it now stands, are distinguished by the slightly ciliated antenne of the males, the elongated 
abdomen, crested on the anterior segments, and the murkings of the fore wings having a mottled character. The 
Caterpillars are long and somewhat slender, of lively but generally of nearly uniform colour, which last feature 
distinguishes them from those formerly of this genus that have been removed. They have the head rather large 
and the pupa is enclosed in a subterranean cocoon. 
Polia Chi (the July Chi, No. 8) is one of the small kinds still retained in the genus. The Caterpillar is 
green, without any markings beyond a dorsal and a lateral stripe, and therefore agrees with the characters now 
established. It feeds on the Common Wild Columbine and many other plants, the Moth appearing in July. It isan 
abundant species in the north. 
Polia Flavicincta (the Large Ranunculus, No. 9) is a mach larger insect than the preceding, but not so large 
as those removed from the genus. It is found in August and September, and is rather a common species. The 
Caterpillar (No. 10) feeds on Lettuce, Dock, Currant, and many other plants and shrubs, and is of tle true character 
required for those now admitted to the genus, being slender and of nearly uniform colour. 
The other species still retained in the genus Polia, in the system I am following, are P. Serena (the Broad 
Barred White) and P. Dysodea (the Ranunculus), both small species. The Caterpillars of these last named species 
are both strongly marked, and are shorter aud thicker than those of the insects now considered true Poli ; they 
have, therefore, in some arrangements been excluded from the genus. 
The genus Ewmichtis will be described in Plate 23. 
The genus Eurois. To this genus, established by Hiibner in 1816, are now removed imost of the finest species 
formerly placed by English entomologists in the genus Polia. Some, disregarding the previous claim of the title 
established by Hiibner, have taken M. Guéené’s name, Aplecta, as the title of the genus now adopted for the reception 
of these insects. The characters of the genus Lurois of Hiibner, as well as of the genus Aplecta of M. Guéené, are, 
antenne pubescent in male, abdomen long, hairy, and slightly depressed, and only slightly crested on the anterior 
seoment. The fore wings are dentate, or toothed at the fringed edge, and their stigmas and other markings are 
very clear and distinct. The larvz are smooth, rather thick, and generally with oblique marks along the back, and 
other strong maculations. 
Eurois Herbida (the Green Arches, No. 12) is one of the handsomest of the genus, but the fine green tone of 
some of the markings often fades very rapidly in a collection, The Caterpillar (No. 13) exhibits clearly the 
characters, which, among others, have caused the separation of this group of species from the old English genus Polia. 
