BUTALIS. 165 
Head obtuse, retracted, with appressed scales. Ocelli none. An- 
tennee with thickly-set joints, in the 3 pubescent-ciliated, before the 
apex slightly serrated. ‘Tongue of moderate length, clothed with seales. 
Palpi rather short, ascending, rather compressed, acuminate. Wings 
elongate; the anterior beneath with a brush at the base; the posterior 
acuminate. In the anterior wings only four veins proceed from the 
discoidal cell below the apical vein; in the posterior wings a single 
vein proceeds from the transverse vein. 
The two last species I have placed in this genus, exhibit several 
discrepancies: in ¢orquatella the anterior wings are oblong ; the 
apex of the posterior wings is obtuse ; the tongue is naked ; the 
shorter palpi are not ascending, with the apex almost obtuse. 
Incongruella has the antenne rather thick, jive ves from the 
discoidal cell of the anterior wings to the hinder margin, and ¢wo 
veins from the transverse vein of the posterior wings. 
The remaining species form an extremely natural genus, of 
which the most remarkable peculiarity is the position in which 
the perfect insects sit when at rest; the wings being almost folded 
round the short thick body, meeting behind it nearly in a point, 
which the thick blunt head of the insect renders more prominent; 
they frequent grassy places and are rather active, flying close to 
the ground; the females of most of the species have a pale spot 
on the underside of the abdomen. Of none, excepting Chenopo- 
diella, is the larva known; of that species the larva feeds in a 
web between united leaves of Chenopodium and Atriplex, where 
it spins a white oval cocoon previous to its transformation; it 
only frequents those plants which grow in sheltered situations. 
There seems to be a great variety of closely allied species on 
the continent, but only seven of the typical form of the genus 
have occurred in this country; they may be arranged as fol- 
lows :— 
a. Anterior wings unicolorous. Species 1, 2, 4. 
aa. Anterior wings with scattered whitish scales, not forming distinct 
spots. Species 3, 5. 
aaa. Anterior wings with distinet white or whitish spots. Sp. 6, 7. 
1. grandipennis, Haw. L. B. 536 (1829); Step. Alis anticis 
viridi-fuscis, postice squamis sparsis albidis. Exp. al. ¢ 84, 9 7 lin. 
Head, face, palpi, and antenne dark fuscous. Anterior wings 
greenish-/uscous, posteriorly with a few whitish scales; cilia pale green- 
ish-fuscous. Posterior wings grey, with pale fuscous cilia. Abdomen 
of the 9 beneath with a large dirty yellow spot. 
Common on heaths, among furze-bushes in May and June. 
2. fusco-zenea, Haw. L. B. 537 (1829); Curt.; Step.; Sta. 
Alis anticis viridi-eneis, postice fusco-tinctis. Exp. al. 7 lin. 
ie 
