THE GENERA OF BRITISH MOTHS, 191 
Lithocolletis trifasciella (the Tawny Treble-har, No. 20), The Caterpillar of this prettily marked species 
feeds on the under side of the leaves of Honeysuckle, in April and September. The perfect insect appears in May 
and November. It is a common species, and is especially abundant in some parts of Devonshire. 
The other species are—Z. Roboris ; L. hortella ; L. Ainyotella ; L. Lantanclla; L. triguttella ; L. quingue- 
guttella ; L. nigrescentella ; L. irradiella ; L. lautella ; L. pomifoliella ; L. Coryti ; L. spinicolella ; L. Faginella; 
L. salicicolella ; L. viminetorwn ; L. carpinicolelia ; L. ulinifoliclla ; L, Spinolella ; L. quercifoliclla ; L. Messa- 
niella ; L. Caledoniella ; L. viminiella ; L. Scopariella ; L. ulicicolella ; L. alnifoliella ; L. Heegerielta ; L. Cra- 
merella ; L. tenella; L. sylvella; L. emberizepennella; L. Frilichiella ; L. Dunningiella; L. Niceltii; L. 
Steitinensis ; L. Klemannella ; L. Schreberella ; L. tristrigella; L. Scabiosella; and L. comparella. Among the 
following may be cited as examples of the varieties of marking exhibited by different species. Z. Roboris has the 
fore wings white, with a delicate net-work of black lines at the apex, A. Zautella has the front wings bright rich 
orange, with delicate silvery streaks. 2. wlmifoliella has the front wings dark saffron, with white streaks and 
bands. L. salicicolella has the front wings of glossy but delicate saffron colour, slenderly streaked, and spotted 
with white. Only a few of the species are rare, and those not among the most beautiful. 
The twelfth family of the sub-division Zincina is that of the Lyonetide. In this family the perfect insects 
have the antenne-furnished witha peculiar basal joint, which extends partially over the eyes ; the labial palpi are 
drooping, and sometimes only rudimental. The wings are narrow. The Caterpillars differ from those of the last 
family in having the full complement of sixteen legs. There are five genera in this family, comprising twenty- 
two species. Among these are some of the prettiest of our Micro-lepidoptera—many of those belonging to the 
genus Cemiostomea being literally resplendent in their raiment of purple and gold. Most of the species appear in 
May and June, but a few in the autumn. These latter hybernate end appear again in the spring. 
The genus Zyonetia, The insects assigned to this genus have the antenne long and slender, with a basal 
joint of the family character, but not so large as in other genera. There are two British species. 
Lyonetia Clerekella (the Clerckian, No. 21). Sometimes the front wings of this species are so much 
suffused with the brown tinge as to obscure the markings. The Caterpillar feeds on the leaves of various fruit 
trees, making long serpentine mines beneath the upper surface. There are several broods in the year, the 
perfect Moth appearing in June, August, November, and March. It is a common and often abundant species. 
The one other species, L. padifoliclla, is much more rare. The ground-colour of the fore wings is purer 
white than in the preceding species, and there is a dark brown line along the front edge; otherwise the two 
species resemble each other very closely. Padifolicila has been taken near Stony Stratford. 
The genus Phyllocnistis. This genus is very closely allied to the last. The antenne are howeyer shorter, 
and the basal joint less conspicuous, The palpi are slender and drooping. There are two British species. 
Phyllocnistis saligna (the Single Dot, No. 22). The Caterpillar feeds on the under side of Willow leaves 
inJune and August. The perfect insect appears in July and September, and the hybernating individuals in 
April. It is not a common species, but in the neighbourhood of London it is perhaps more frequent than in 
other localities. 
The other species, P. suffuselia, closely resembles the preceding, but the brown blotch beyond the middle 
is not enclosed between two dark lines as in that species. This last species has been recently very abundant 
in the neighbourhood of Micklehaim. 
The genus Cemiostoma, The insects assigned to this genus have the head smooth; the antenne with 
mmoderately sized basal joints extending above the eyes ; and the palpi are absent or rudimental. There are five 
British species, all more or less remarkable for their beauty. 
Cemiostoma Spartifoliclla (the Gold Dot, No. 23). The Caterpillar of this species is slender, and of a pale 
green colour ; it burrows under the bark of the Broom iu April and May. The perfect insect appears in May 
and June, The illustration can do no justice to the graceful markings of this elegant little Moth, on account of 
its diminutive scale. In the middle of the fore wings, in perfect specimens, are two pale yellow spots delicately 
edged with brown, and below is a black spot dotted in the centre with violet—eyen the fringes are minutely 
variegated with slender streaks, 
