Native
Argyrotaenia mariana (Fernald) (Tortricidae: Tortricinae: Archipini)
Common names: gray-banded leaf roller
FWLFWL:
forewing length; the distance from the base of the forewing to the apex, including fringe
: 7.0-10.0 mm
Forewing ground color is light gray to white. Markings include a dark-brown to black cresent on the costacosta:
the anterior margin of each wing
, a light-brown patch in the area of the median fasciafascia:
a dark transverse band on the forewing
, and sparse pale-brown shading on the basal half of the wing in some individuals. The hindwing is gray. 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 a well-developed, apically widening uncusuncus:
a sclerotized process which is fused to the posterodorsal margin of tergum IX
; reduced sociisocii:
a pair of lightly sclerotized setose lobes
; and eliptical, membranous, rounded valvaevalva:
an appendage flanking the intromittent organ that is used to clasp the female during copulation
. Female genitalia are characterized by a small sclerotizedsclerotized:
hardened; usually in reference to larval structures or adult genitalia
plate at the base of the ductus bursaeductus bursae:
a membranous tube connecting the ostium bursae to the corpus bursae
; a large, conspicious sclerotizedsclerotized:
hardened; usually in reference to larval structures or adult genitalia
patch at the junction of the ductus bursaeductus bursae:
a membranous tube connecting the ostium bursae to the corpus bursae
and corpus bursaecorpus bursae:
a dilated membranous sac at the anterior end of the bursa copulatrix
; and a large, hook-shaped signumsignum:
a sclerotized projection or patch on the interior of the corpus bursae
in the corpus bursaecorpus bursae:
a dilated membranous sac at the anterior end of the bursa copulatrix
with a well-developed capitulumcapitulum:
in reference to the female signum; a knoblike projection
.
The following account is summarized from MacKay (1962a).
Mature larva 17-23 mm in length; largely unmarked; body light green; head, prothoracic shieldprothoracic shield:
a sclerotized plate on the dorsal surface of the prothorax
yellowish green; anal shield may be lightly mottledmottled:
having spots or blotches of color
with dark green spots; anal fork well-developed; SV group on A1, 2, 7, 8, 9 numbering 3:3:3:2:2.
Detailed figures of larval chaetotaxychaetotaxy:
the arrangement of setae (in reference to Lepidoptera larvae), often depicted on a "setal map"
are available in MacKay (1962a).
The general forewing coloration and pattern is similar to some species of Acleris, such as Acleris forbesana and Acleris nivisellana. A genitalic dissection can be used to confirm identity.
The larvae can be confused with those of many other tortricids, including other Argyrotaenia, Epiphyas postvittana, and Choristoneura rosaceana. According to Chapman and Lienk (1971), the markings on the anal shieldanal shield:
a sclerotized plate on the dorsal surface of the last abdominal segment (in larvae)
can be used to separate A. mariana from other Argyrotaenia species.
The following account is summarized from Chapman & Lienk (1971).
Argyrotaenia mariana completes a single generation per year. Adults are present in May and June.
Females lay eggs in masses of 20-120 individual eggs on the upper surface of leaves and smooth bark. First instar larvae immediately disperse from the egg mass on silken threads, which transport them to different parts of the plant or entirely different plants. Early instars skeletonize the underside of leaves along the midrib. Later instars roll or web leaves, or web leaves to fruit.
This species has been recorded as an infrequent pest of apple in the Northeast.
Although larvae of A. mariana have been recorded from a variety of plants, Chapman and Lienk (1971) speculate that its primary hosts are restricted to the family Rosaceae.
Host plant | Host plant family | Reference(s) |
Acer sp. | Aceraceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Prenanthes sp. | Asteraceae | 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. |
Prenanthes trifoliolata | Asteraceae | 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. |
Alnus sp. | Betulaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Betula alleghaniensis | Betulaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Betula papyrifera | Betulaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Betula populifolia | Betulaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Betula sp. | Betulaceae | MacKay 1962aMacKay 1962a: MacKay, M. R. 1962a. Larvae of the North American Tortricinae (Lepidoptera: Tortricidae). Canadian Entomologist, Supplement 28: 1-182. |
Viburnum sp. | Caprifoliaceae | 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. |
Kalmia angustifolia | Ericaceae | 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. |
Vaccinium sp. | Ericaceae | Forbes 1923Forbes 1923: Forbes, W. M. T. 1923. The Lepidoptera of New York and neighboring states. Primitive forms, Microlepidoptera, Pyraloids, Bombyces. Cornell Univ. Argic. Exp. Sta., Mem. 68. 729 pp.; Freeman 1958Freeman 1958: Freeman, T. N. 1958. The Archipinae of North America (Lepidoptera: Tortricidae). Canadian Entomologist, Supplement 7 (Vol. 90): 1-89.; LACM IndexLACM Index: LACM Index. Records from the card file at the Los Angeles County Museum of Natural History, Los Angeles, California; transcribed by Gaeden Robinson (BMNH). |
Vaccinium uliginosum | Ericaceae | Freeman 1944Freeman 1944: Freeman, T. N. 1944. A review of the North American species of the genus Argyrotaenia Stephens (Lepidoptera, Tortricidae). Scientific Agriculture. 25: 81-94. |
Quercus sp. | Fagaceae | LACM IndexLACM Index: LACM Index. Records from the card file at the Los Angeles County Museum of Natural History, Los Angeles, California; transcribed by Gaeden Robinson (BMNH).; Wagner et al. 1995Wagner et al. 1995: Wagner, D. L., Peacock, J. W., Carter, J. L., Talley, S. E. 1995. Spring caterpillar fauna of oak and blueberry in a Virginia deciduous forest. Annals of the Entomological Society of America. 88: 416-426. |
Malus pumila | Rosaceae | Bradley MS 1987Bradley MS 1987: Bradley, J. D. 1987. Card catalogue of identified reared material received by Bradley for identification from about 1955 to 1987; original in BMNH Microlepidoptera Section library.; Freeman 1944Freeman 1944: Freeman, T. N. 1944. A review of the North American species of the genus Argyrotaenia Stephens (Lepidoptera, Tortricidae). Scientific Agriculture. 25: 81-94. |
Malus sylvestris | Rosaceae | LACM IndexLACM Index: LACM Index. Records from the card file at the Los Angeles County Museum of Natural History, Los Angeles, California; transcribed by Gaeden Robinson (BMNH). |
Malus sp. | Rosaceae | LACM IndexLACM Index: LACM Index. Records from the card file at the Los Angeles County Museum of Natural History, Los Angeles, California; transcribed by Gaeden Robinson (BMNH).; MacKay 1962aMacKay 1962a: MacKay, M. R. 1962a. Larvae of the North American Tortricinae (Lepidoptera: Tortricidae). Canadian Entomologist, Supplement 28: 1-182.; Pohl et al. 2005Pohl et al. 2005: Pohl, G. R., Bird, C. D., Landry, J.-F., Anweiler, G. G. 2005. New records of microlepidoptera in Alberta, Canada. Journal of the Lepidopteristsrsquo; Society. 59: 61-82. |
Prunus virginiana | Rosaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Pyrus sp. | Rosaceae | Freeman 1958Freeman 1958: Freeman, T. N. 1958. The Archipinae of North America (Lepidoptera: Tortricidae). Canadian Entomologist, Supplement 7 (Vol. 90): 1-89. |
Populus tremuloides | Salicaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Salix sp. | Salicaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
Ulmus americana | Ulmaceae | Prentice 1966Prentice 1966: Prentice, R. M. 1966. Vol. 4. Microlepidoptera. In : Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Dept. For. Canada Publ. 1142: 543-840. |
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Argyrotaenia mariana is found in eastern North America, where it is most common in the Northeast and southern Canada. Records exist for as far south as Tennessee and North Carolina.