Native
Cenopis pettitana (Robinson) (Tortricidae: Tortricinae: Sparganothini)
Common names: maple-basswood leafroller
Synonyms: acerivorana (Sparganothis)
FWLFWL:
forewing length; the distance from the base of the forewing to the apex, including fringe
: 9.0-11.0 mm (males); 12.0-14.0 (females)
Head yellow, rarely white; labial palpilabial palpi:
a pair of sensory appendages that project from the lower part of the head; usually covered in scales and three-segmented
yellow to brownish-orange; thorax concolorous, sometimes brownish-orange anteriorly. Male forewing pale yellow to white; markings variable, from completely absent to well-developed and consisting of brownish-orange fasciaefascia:
a dark transverse band on the forewing
; forewing costal foldforewing costal fold:
a flap or fold at the base of the forewing that contains specialized sex scales
present, short; female forewing typically white, occasionally pale yellow, almost always lacking markings; hindwing of both sexes pure white.
Male genitalia are characterized by uncusuncus:
a sclerotized process which is fused to the posterodorsal margin of tergum IX
slender, scarcely extending beyond large, narrow sociisocii:
a pair of lightly sclerotized setose lobes
; valvaevalva:
an appendage flanking the intromittent organ that is used to clasp the female during copulation
elliptical. Female genitalia are characterized by sterigmasterigma:
the sclerotized region surrounding the female ostium bursae 
broad, well-sclerotized, with laterallateral:
to the side
lobes on each side of the ostiumostium:
see ostium bursae 
bursae; ductus bursaeductus bursae:
a membranous tube connecting the ostium bursae to the corpus bursae
coiled once; and signumsignum:
a sclerotized projection or patch on the interior of the corpus bursae
present as a relatively straight, narrow sclerite extending from the base of the corpus bursaecorpus bursae:
a dilated membranous sac at the anterior end of the bursa copulatrix
well into the corpus bursaecorpus bursae:
a dilated membranous sac at the anterior end of the bursa copulatrix.
The following account is summarized from MacKay (1952)MacKay (1952):
MacKay, M. R. 1952. A new species of Sparganothis allied to S . pettitana (Rob.), with descriptions of larvae and adults of both species (Lepidoptera: Tortricidae). Canadian Entomologist. 84: 233-242., MacKay (1962a), and Powell & Brown (2012).
Mature larva approximately 25 mm in length; head averages 1.9 mm in width. Head brownish, black pigmentation laterally; prothoracic shieldprothoracic shield:
a sclerotized plate on the dorsal surface of the prothorax 
yellow with V-shaped posteriorposterior:
after, to the rear, toward anal end 
mark on each side of the middorsal line, sometimes with darker pigmentation laterally; body green or yellow-green; pinaculapinaculum:
flattened sclerotized plates on a caterpillar that bear the setae
paler; legs brown to dark brown; anal fork moderately developed. SV group on A1, 2, 7, 8, 9 usually 3:3:3:2:2.
A complete description of larval chaetotaxychaetotaxy:
the arrangement of setae (in reference to Lepidoptera larvae), often depicted on a "setal map"
for C. pettitana and its synonym Sparganothis acerivorana MacKay is given in MacKay (1952)MacKay (1952):
MacKay, M. R. 1952. A new species of Sparganothis allied to S . pettitana (Rob.), with descriptions of larvae and adults of both species (Lepidoptera: Tortricidae). Canadian Entomologist. 84: 233-242. and MacKay (1962a).
Cenopis pettitana is similar to several other species of Sparganothini, but can usually be identified by its larger size, pale color, and poorly-developed markings (although some specimens do have somewhat distinct markings, especially along the costacosta:
the anterior margin of each wing 
).
The main flight period appears to be June and July, the period being slightly longer on both sides further south. Larvae feed by rolling leaves of the host plant; pupation occurs in leaf rolls or in a purse-like shelter within a larger shelter formed by the rest of the leaf. Adults eclose 7-10 days later. It is unclear which life stage overwinters.
Like the common name suggests, the primary hosts of C. pettitana are basswood (Tilia americana) and maple (Acer spp.), although several other species have been reported.
| Host plant | Host plant family | Reference(s) |
| Acer negundo | 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. |
| Acer rubrum | Aceraceae | 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).; 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. |
| Acer saccharinum | Aceraceae | 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).; 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. |
| Acer spicatum | Aceraceae | 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). |
| Acer sp. | Aceraceae | 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).; 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.; Schaffner 1959Schaffner 1959: Schaffner, J. V. 1959. Microlepidoptera and their parasites reared from field collections in the northeastern United States. USDA, Misc. Publ. 767. 97 pp.; McDunnough 1961McDunnough 1961: McDunnough, J. 1961. Some hitherto undescribed species of Sparganothinae from Nova Scotia, with notes on other indigenous species (Lepidoptera, Tortricidae). American Museum Novitates. 2040: 1-11.; MacKay 1962aMacKay 1962a: MacKay, M. R. 1962a. Larvae of the North American Tortricinae (Lepidoptera: Tortricidae). Canadian Entomologist, Supplement 28: 1-182. |
| Alnus sp. | Betulaceae | 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).; 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. |
| Carpinus caroliniana | Betulaceae | 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). |
| Ostrya virginiana | 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. |
| Austrocedrus chilensis | Cupressaceae | Cepeda & Cubillos 2011 |
| Prosopis tamarugo | Fabaceae | Cepeda & Cubillos 2011 |
| Quercus alba | Fagaceae | 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. |
| Quercus coccinea | Fagaceae | 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. |
| Quercus laevis | Fagaceae | Kimball 1965Kimball 1965: Kimball, C. P. 1965. The Lepidoptera of Florida: an annotated checklist. In : Arthropods of Florida and neighboring land areas, vol. 1. Florida Department of Agriculture, Division of Plant Industry, Gainesville. 363 pp. |
| Quercus macrocarpa | Fagaceae | 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. |
| Quercus rubra | 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).; 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. |
| Quercus sp. | Fagaceae | Fernald 1882aFernald 1882a: Fernald, C. H. 1882a. A synonymical catalogue of the described Tortricidae of North America, north of Mexico. Transactions of the American Entomological Society. 10: 1-64.; Meyrick MS 1938Meyrick MS 1938: Meyrick MS 1938. Unpublished manuscript by E. Meyrick at BMNH, data captured by Gaeden Robinson.; Godfrey et al. 1987Godfrey et al. 1987: Godfrey, G. L., Cashatt, E. D., Glenn, M. O. 1987. Microlepidoptera from the Sandy Creek and Illinois River Region: A annotated checklist of the suborders Dacnonypha, Monotrysia, and Ditrysia (in part) (Insecta). Spec. Publ. 7. Illinois Natural History Survey.; 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. |
| Carya sp. | Juglandaceae | Fernald 1882aFernald 1882a: Fernald, C. H. 1882a. A synonymical catalogue of the described Tortricidae of North America, north of Mexico. Transactions of the American Entomological Society. 10: 1-64. |
| Cotoneaster sp. | Rosaceae | Cepeda & Cubillos 2011 |
| Prunus cerasus | Rosaceae | Cepeda & Cubillos 2011 |
| Prunus domestica |
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Cenopis pettitana is broadly distributed in eastern North America, from Nova Scotia to Manitoba, south to Florida and eastern Texas. It appears to be less common in the southeastern United States.
