Native
Acleris flavivittana (Clemens) (Tortricidae: Tortricinae: Tortricini)
Common names: masked leaf roller
Synonyms: perspicuana (Teras)
FWLFWL:
forewing length; the distance from the base of the forewing to the apex, including fringe
: 7.5-10.0 mm
The forewing pattern is variable, with ground color varying from dark gray to brown, red, or black. The dorsaldorsal:
upper, to the top, on the back 
margin is pale yellow or white in some individuals. Males lack a forewing costal foldforewing costal fold:
a flap or fold at the base of the forewing that contains specialized sex scales
.
Male genitalia are characterized by uncusuncus:
a sclerotized process which is fused to the posterodorsal margin of tergum IX
reduced; sociisocii:
a pair of lightly sclerotized setose lobes
quadrate, lobe-like; valvaevalva:
an appendage flanking the intromittent organ that is used to clasp the female during copulation
elongate with well-developed sacculussacculus:
the ventral margin of the male valva 
with shallow ventralventral:
lower, to the bottom, on the under side
excavation. Female genitalia characterized by sterigmasterigma:
the sclerotized region surrounding the female ostium bursae 
with large, deep anterolateral lobes; scobinatescobinate:
rasplike
signum present in the corpus bursaecorpus bursae:
a dilated membranous sac at the anterior end of the bursa copulatrix
.
The following account is summarized from Chapman & Lienk (1971).
Last instar larvae are 12-17 mm in length. The head is dark brown ventrally and light brown dorsally, although the degree of contrast between the two halves can vary. Other diagnostic features of the larvae include the prothoracic shieldprothoracic shield:
a sclerotized plate on the dorsal surface of the prothorax 
, which is shaded posterolaterally with dark brown to black and the thoracic legs, with are dark on the prothoraxprothorax:
the most anterior thoracic segment
and pale on the other two segments.
Some forms of Acleris flavivittana are very similar to forms of several other species of Acleris treated on this site, such as A. pulverosana, A. robinsonana, and A. senescens. A genitalic dissection may be necessary to identify any of these species.
Life history information is not well documented. Chapman and Lienk (1971) suggest that only one generation is produced in the northeastern U.S. Larvae complete development in late July to late August, and adults are present August and September. Overwintering probably occurs as a mid-instar larva. Larvae feed between two leaves, skeletonizing the top surface of one the leaves. Larvae will feed on apples if given an opportunity, although this species has not been recorded damaging cultivated apples.
In addition to apple, A. flavivittana has been recorded feeding on pin cherry.
| Host plant | Host plant family | Reference(s) | |||||||||||||||||||||||||||||||||
| Malus pumila | Rosaceae | Chapman & Lienk 1971 | |||||||||||||||||||||||||||||||||
| Prunus pensylvanica | Rosaceae | Ferguson 1975Ferguson 1975: Ferguson, D. C. 1975. Host records for Lepidoptera reared in eastern North America. United States Department of Agriculture Technical Bulletin 1521. 49 pp. |
View full screen host table here
Acleris flavivittana occurs in the northeastern United States and southern Canada. It has also been recorded from North Carolina.
