oT’ oe ae 
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290 LYONETIDA. 
Occurs in marshy places at the end of June and beginning of 
‘July. Fischer observed this species to fly only at dusk, hence 
the name; but later observations show that it also flies earlier in 
the afternoon, especially if the weather be dull. 
Genus V. BUCCULATRIX. 
Buccunarri, Zell. L, B. iii. 286 (1848). Zineap., Haw. Llachista 
p., Treit.; Dup. L. F. xi. Argyromiges p., Step. Lyonetia p., 
Zell. Isis, 1839; Dup. Cat. 
Capilli hirsuti, epistomio levigato. Antenne breviuscule, conchula 
basali parvula. Palpi nulli. Waustellum breve, nudum. Ale an- 
teriores caudulatee, posteriores lanceolate ; anteriores : cellula dis- 
coidalis acuta, potsice venas sex emittit, vena subcostalis longissime 
obsoleta, subdorsalis simplex; posteriores; vena mediana in tres 
ramos divisa, subdorsalis simplex, ; 
Head rough, tufted; the face smooth. Antenne rather short, with 
a rather small eye-cap to the basal joint. Palpi none. Tongue short 
and naked. Anterior wings caudulate, the posterior lanceolate. In 
the anterior wings the acute discoidal cell posteriorly emits six veins ; 
the subcostal vein is obsolete for a considerable distance ; the subdorsal 
vein is simple; in the posterior wings the median vein divides into 
three branches; the subdorsal vein is simple. 
This genus offers several points of resemblance with the next 
family, but the larvae have six well-developed true legs. The per- 
fect insects are rather active, and frequently fly in little swarms 
round the plants on which the larva feed. The larvee have a very 
singular habit, at least it has been observed in Cra¢egi and Pran- 
gutella, and probably it prevails throughout the genus: these 
larvee when very young are true miners, that of Crategi forms 
a short tortuous mine; that of Pranguted/a a spiral one, forming 
brownish-purple blotches on the leaf; at a certain age the larva 
quits the mine, and on the underside of the leaf spins a delicate 
whitish web or cocoon, within which the larva remains quite 
motionless and in a horse-shoe shape for a considerable time; it 
then emerges from this cocoon totally different in appearance to 
what it was as a leaf-miner, and proceeds to eat the epidermis of 
the leaf, which formerly it mined. ‘The deserted cocoon will be 
found to contain the previous skin of the larva. The external- 
feeding larva has a singular shagreen appearance ; when full-fed 
it descends to the ground, or some convenient corner, and spins 
an elongate ribbed cocoon, within which it remains unchanged 
for a considerable time. 
