1078 WALTER H. WELLHOUSE 
ocellana Fabr., Tmetocera (Bud moth) 
The brownish larvae of T'metocera ocellana are commonly found in the 
partly opened leaf buds in April and May, on both native and European. 
hawthorns. The moths emerge from the larval nests in June and early 
July. 
prunivora Walsh, Las peyresia (Lesser apple worm) 
The small white caterpillars of Laspeyresia prunivora are very common 
in the fruit of many native hawthorns in late summer. They eat most of 
the pulp from one side of the fruit, causing the skin to sink in there. The 
larvae of the second generation sometimes remain in the fruit all winter, 
living within a mixture of silk and pellets of frass. Others spin silken 
hibernacula under the bark of the trunk very similar to those of the codling- 
moth larvae but smaller. They pupate within the hibernacula in the spring 
and the moths emerge in May and June. In the laboratory they emerged 
in March. Moths of the first generation were taken in the field from 
August 15 to August 30. 
quadrifasccana Fern , Eulia 
The yellowish larvae of Eulia quadrifasciana tie together with silk the 
leaves of terminal clusters on Crataegus punctata in May. They pupate 
within the larval nests and the moths emerge in early June. The moth is 
yellow and orange, with darker oblique bands on the fore wings. The 
species is not very common. 
rosaceana Harris, Cacoecia (Oblique-banded leaf roller) 
Clusters of leaves tied together by the larvae of Cacozcia rosaceana are 
fairly common on all native hawthorns in May and July. The green- 
striped larva, with its brown head and shield, is generally found on a single 
leaf under a slight web, feeding on one side of the leaf only. When full- 
grown the larva ties a cluster of leaves together to pupate within. Moths 
emerged from these nests from May 26 to June 30, and a second brood 
emerged from August 1 to August 15. 
Yponomeutidae 
oreasella Clem., Argyresthia 
The small, green, black-headed larva of non yresthia oreasella bores 
through a terminal leaf bud down into the twig and makes a hole in the 
side of the twig about 4 inch from the tip, through which the frass is cast 
out of the burrow. When disturbed the larva runs quickly out of either 
the hole in the twig or the hole in the bud, to escape. Infested twigs 
wilt soon after the larva has left the burrow, and then become brown and 
dry, giving the tree a fire-blighted appearance (fig. 112). Larvae of this 
species were found in many native hawthorn twigs in May. They leave the 
