Exotic
Cydia fabivora (Meyrick) (Tortricidae: Olethreutinae: Grapholitini)
Synonyms: leguminis (Laspeyresia), prosecta (Eulia)
FWLFWL:
forewing length; the distance from the base of the forewing to the apex, including fringe
: 7.0-11.0 mm
Adults are grayish brown with indistinct black, brown, and gray markings. Many individuals have a black patch near the apexapex:
the point furthest removed from the base or at the end of the costal area 
of the forewing that may extend to the termentermen:
the outer edge of the forewing 
. The apexapex:
the point furthest removed from the base or at the end of the costal area itself is often cream or white. Males lack a forewing costal foldforewing costal fold:
a flap or fold at the base of the forewing that contains specialized sex scales
. The hindwings are brown.
Male genitalia are characterized by the absence of an uncusuncus:
a sclerotized process which is fused to the posterodorsal margin of tergum IX
, a weakly developed tegumentegumen:
dorsal section of the transverse ring in male genitalia; often heavily sclerotized 
, a triangular cuculluscucullus:
the distal portion of the male valva
with a row of dense spines, and a thin, curved phallusphallus:
the male intromittent organ (penis); see "aedeagus" 
. Female genitalia are characterized by a ductus bursaeductus bursae:
a membranous tube connecting the ostium bursae to the corpus bursae
that is partially sclerotizedsclerotized:
hardened; usually in reference to larval structures or adult genitalia 
and two horn-like signasignum:
a sclerotized projection or patch on the interior of the corpus bursae
.
The following account is summarized from Stansly & Sanchez (1990) and San Martin-Romero et al. (2020).
Mature larva 15-20 mm in length; head, prothoracic shieldprothoracic shield:
a sclerotized plate on the dorsal surface of the prothorax 
, and legs brown; body pale yellowish white; pinaculapinaculum:
flattened sclerotized plates on a caterpillar that bear the setae
large, brown, conspicuous; anal fork absent; SV group on A1, 2, 7, 8, 9 numbering 3:3:3:2:1.
Detailed figures of larval chaetotaxychaetotaxy:
the arrangement of setae (in reference to Lepidoptera larvae), often depicted on a "setal map"
are available in San Martin-Romero et al. (2020).
Adults appear similar to other Grapholitini, including Cydia torostoma, which feeds on beans in Central America (Clarke 1972Clarke 1972:
Clarke, J. F. G. 1972. Two pests of beans from tropical America (Lepidoptera: Olethreutidae). Proceedings of the Entomological Society of Washington. 74: 467-471.). A genitalic dissection may be necessary to confirm identity.
Larvae are similar to many species in the Cryptophlebia-Ecdytolopha group, with an enlarged L-pinaculum on the prothoraxprothorax:
the most anterior thoracic segment
that extends beneath (and usually beyond) the spiracle.
Larval damage to beans is similar to that caused by Crocidosema aporema; however, larvae of C. aporema feed primarily on young leaflets while those of E. fabivora feed in the stems and pods. An anal combanal comb:
a toothed structure on the last abdominal segment used to eject frass away from the feeding larva; also termed "anal fork" 
is present in C. aporema but is absent in C. fabivora.
Other bean-feeding tortricids in South and Central America include Amorbia spp., Cydia torostoma, Lusterala phaseolana, and Platynota spp.
The following account is summarized from Stansly & Sanchez (1990) and San Martin-Romero et al. (2020).
Ecdytolopha fabivora completes several generations per year. In areas where host plants are available year-round, adults may be present at any time. Females lay eggs on the leaves, petioles, stems, flowers, and pods, of soybean; oviposition behavior varies with plant age. Larvae tunnel into the petioles, stems, or pods, sometimes causing considerable damage. Larvae may also feed on terminals and flowers. Pupation occurs in cocoons at the larval feeding site.
Larval damage is characterized by stunted plants, pod loss, or complete plant death in the case of tunneling in the main stem.
Ecdytolopha fabivora is a pest of beans (lima beans, string beans, soybeans) in Central and South America.
| Host plant | Host plant family | Reference(s) |
| Glycine max | Fabaceae | Stansly & Sanchez 1990 |
| Phaseolus lunatus | Fabaceae | Clarke 1958a, 1972; San Martín-Romero et al. 2020San Martín-Romero et al. 2020: San Martín-Romero, E., Martinez-Rosas, R., Espinosa-Mendoza, M., Landa-Cadena, G., Morales-Báez, M., Salinas-Castro, A. 2020. Complejo de perforadores: Ecdytolopha fabivora (Meyrick), Cydia deshaisiana (Lucas) y Cydia pomonella (L.) en cultivo de frijol criollo (Phaseolus lunatus L.) y canavalia (Canavalia ensiformis L.) en Mexico. Revista de la Sociedad Entomológica Argentina. 79(1): 13-20 [in Spanish]. |
| Phaseolus vulgaris | Fabaceae | Clarke 1958a, 1972 |
| Phaseolus sp. | Fabaceae | Meyrick 1928bMeyrick 1928b: Meyrick, E. 1928b. Exotic Microlepidoptera. 3(15): 449-480.; Heinrich 1943Heinrich 1943: Heinrich, C. 1943. A new species of Laspeyresia , a bean pest from tropical America (Lepidoptera: Olethreutidae). Proceedings of the Entomological Society of Washington. 45: 71-73.; MacKay 1959MacKay 1959: MacKay, M. R. 1959. Larvae of the North American Olethreutidae (Lepidoptera). Canadian Entomologist, Supplement 10: 1-338. |
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Ecdytolopha fabivora is widely distributed in Central and South America.
