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Corresponding author: Sergio Vargas-Fonseca ( vargas.sergio020@gmail.com ) Academic editor: Christian Schmidt
© 2020 Sergio Vargas-Fonseca, Yenny Correa-Carmona, José Mauricio Montes-Rodríguez, Humberto Calero-Mejía, Alberto Zilli.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Vargas-Fonseca S, Correa-Carmona Y, Montes-Rodríguez JM, Calero-Mejía H, Zilli A (2020) Synopsis of fruit-piercing moths of the genus Eudocima (Lepidoptera, Erebidae) from Colombia. ZooKeys 953: 85-104. https://doi.org/10.3897/zookeys.953.50709
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In order to provide information about the diversity and distribution of Eudocima species in Colombia, 261 specimens deposited in entomological collections were examined and identified. We found seven of the eight species of Eudocima recorded in the Neotropics: E. anguina, E. colubra, E. collusoria, E. memorans and E. serpentifera, all being recorded for the first time from the country. We provide a list of the species, comments on the biology and distribution data, illustrations of the adults, and keys for species identification.
Biodiversity, distribution, El Niño-Southern Oscillation (ENSO), entomological collections, fruit pest, taxonomy
The fruit-piercing moth genus Eudocima Billberg, 1820 (Erebidae, Calpinae) encompasses approximately 50 species distributed throughout tropical and subtropical regions of the world (
In Asian countries and islands of the Pacific, fruit-piercing Eudocima are frequently reported as damaging crops, while in the Americas they are only sporadically mentioned as pests (
In Colombia, E. apta (Walker, [1858]) and E. procus (Cramer, 1777), two species widely distributed in the Neotropics, were recently reported as occasional citrus pests (
The aim of this work is to report information on Eudocima from specimen data preserved in collections and produce a checklist and an identification key to species occurring in Colombia. Additionally, we provide information about the environmental variables determining species distribution. This information will facilitate a baseline for planning ecological studies and taking phytosanitary actions in case of the detection of pest species in fruit orchards. Furthermore, the checklist could assist with the resolution of environmental factors determining presence of these moths in cultivations and enable the development of models to forecast their occurrence in agroecosystems.
The checklist presented here collates literature records for Colombia based on
CTNI Colección Taxonómica Nacional de Insectos “Luis María Murillo” – Agrosavia, Mosquera, Colombia
JFLC Colección Privada LeCrom, Bogotá, Colombia
For taxonomic identification the original descriptions and the checklist of
Relevant information was retrieved wherever possible from specimen labels in order to arrange distribution maps with occurrence data and assess biological and ecological traits of species. The occurrence maps were constructed using ArcMap 10.2 (Esri) and a digital elevation model of the Shuttle Radar Topography Mission, which has a resolution of 250 m (
Specimens were photographed in both dorsal and ventral views with a Camera Canon SX50 HS. The photographs were edited using Adobe Photoshop version 20.0.
A total of 261 fruit-piercing moths of the genus Eudocima were studied in this work. They represent seven species. Of these, E. anguina (Schaus, 1911), E. collusoria (Cramer, 1777), E. colubra (Schaus, 1911), E. memorans (Walker, [1858]) and E. serpentifera (Walker, [1858]) are recorded for the first time from Colombia. The records originate from 15 departments, mostly from the Andean region of the country (Fig.
1 | Hindwing without marginal band and with two sinuous bands beyond basal dark area | E. procus |
– | Hindwing with a black marginal band | 2 |
2 | Hindwing with a discal circular spot | E. apta |
– | Hindwing with a discal band | 3 |
3 | Discal band of hindwing straight and short | E. anguina |
– | Discal band of hindwing lobed into an “m”-shape | 4 |
4 | Discal band of hindwing ending well before wing margin | E. serpentifera |
– | Discal band of hindwing reaching wing margin | 5 |
5 | Discal band of hindwing with inner margin nearly straight | E. collusoria |
– | Discal band of hindwing with inner margin distinctly concave | 6 |
6 | Forewing crossed by pale transverse lines, postmedial split into more waves before slightly rounded apex | E. memorans |
– | Forewing crossed by dark transverse lines, postmedial distinct from fairly acute apex | E. colubra |
Colombia. Cundinamarca: 1♂; San Francisco; vda. Arrayán, Finca Buena vista; 4.9333, -74.2833; 1520 m; 20 Jul. 2014; L. Tarazona leg.; light trap;
This species is characterized by a short discal band on the hindwings.
Costa Rica (
This species is herewith recorded for the first time from Colombia, in the locality of San Francisco, Cundinamarca.
Colombia. Antioquia: 1♀; Medellín; 6.2518, -75.5636; Oct. 1993; N. Monsalve leg.; MFLG 46650. 1♂; same locality; Aug. 1967; R. Velez leg.; MFLG 46651. 1♂; Yarumal; vda. Corcovado, Alto de Ventanas; 7.0743, -75.4436; 2020 m; 22–26 Jun. 2015; ICN. Boyacá: 1♀; Cerinza; Parque principal; 5.9632, -72.9626; 2750 m; 31 Oct. 2014; E. Corredor leg.;
This species is easily distinguished from the other neotropical members of the genus by its circular black discal spot on the hindwings.
Widespread in the New World, from southern United States and the Caribbean to Brazil, the South Atlantic Islands and north of Chile (
Traditionally it has been incorrectly identified as Eudocima materna (Linnaeus, 1767) (e.g.,
Colombia. Cundinamarca: 1♀; Silvania; Km. 31 Bogotá-Silvania; 4.4212, -74.3888; 1386 m; 8 May 2016; K. Medina leg.; entomological net;
The “m”-shaped band in the hindwings resembles those of E. memorans and E. colubra, but it differs in having the inner margin straighter. The forewings do not have pale transverse bands as in E. memorans.
Neotropical (
One male specimen was examined from Cundinamarca. It is recorded for the first time from Colombia.
Colombia. Antioquia: 1♀; Medellín; 6.2518, -75.5636; May 1984; F. Serna leg.; On a wall; MFLG 46641. 1♀; Yarumal; vda. Corcovado, Alto de Ventanas; 7.0743, -75.4436; 2020 m; 22–26 Jun. 2015; ICN. Chocó: 1♂; Río Tamaná, El Tigre; 5.15, -76.2166; 97 m; 09 Feb.; G.M. Palmer leg.;
Marked sexual dimorphism in the coloration of forewings. The species has a sinuous band on the posterior wings in the form of an “m”, similar to those of E. memorans and E. collusoria.
Costa Rica, Peru (
Three specimens were examined from the departments of Antioquia and Chocó. It is recorded from Colombia for the first time.
Colombia. Antioquia: 1♂; Valle de Aburrá; 6.2833, -75.5; May 1953; F. Gallego leg.; MFLG 46653. Bolivar: 1♀; Cartagena; 10.3997, -75.5144; L. Cortes leg.;
The hindwings show an “m”-shaped band with a distinctly sinuous inner margin. Unlike E. serpentifera, this band reaches the wing margin. Forewing with oblique pale bands. Hostplant and life cycle unknown.
Neotropical (
This species is recorded for the first time from Colombia.
Ophideres columbina Guenée, 1852
Ophideres scabellum Guenée, 1852
Acacallis procax; Hübner, [1823] [misspelling]
Colombia. Antioquia: 1♂; Medellín; 6.2518, -75.5636; Apr. 1989; F. Cuartas leg.; entomological net;
It is easily distinguished from the other species of Eudocima by having two sinuous bands on the hindwing, in addition to a black basal band, which confer a somewhat checkered appearance.
Widely distributed, with records from Central America to southern Brazil (
Ophideres raphael Dugès, 1896
Colombia. Antioquia: 1♂, 1 ♀; Valle de Aburrá; 6.2833, -75.5; Sep. 1945-Sep. 1952; F. Gallego leg.; MFLG 46654, 46656. Cauca: 1♂; Guapi; PNN. Gorgona-Playa Blanca; 2.9484, -78.1842; 52 m; 19–22 Oct. 2010; H. Calero leg.; Van Someren-Rydon Trap;
This species has a sinuous “m”-shaped band on the hindwings. Unlike other species with similar pattern on the hindwings such as E. memorans, E. collusoria and E. colubra, in E. serpentifera the “m”-shaped band does not reach the wing margin.
Widely distributed in Tropical America.
This species is recorded for the first time from Colombia.
The collections examined essentially consist of holdings from the Andean region. It is no surprise then that 94% of records are from the Andes, mainly the eastern mountain chain, with 65%, and 35% solely from Bogotá city. The Caribbean and Pacific regions have only three records each, and most of the Amazon region and Orinoquia are not represented in the sample; Eudocima moths are known only from three locations in the Amazonian foothills in the departments of Putumayo and Meta.
Based on collection data from the city of Bogotá, the most common location represented in our sample, it is evident that seasonality of these moths is mainly determined by precipitation. Captures appear to be low in December and January, which are the months of lowest rainfall, and sharply increase during March, when the rainy season begins. Both the annual distribution of precipitation and that of moths show a bimodal pattern (Fig.
The known geographical distribution of species of Eudocima is considerably expanded with our data. For instance, E. anguina was only known from Costa Rica, making the present record the first of this species in South America; E. collusoria was only known from Suriname and French Guiana; the record of E. colubra was predictable as this was known previously from Costa Rica and Peru; and E. memorans, described from the western coast of the Americas, was also found in the eastern mountain chain of Colombia and the Caribbean coast.
The wide distribution of Eudocima species is related to both their strong flight capacity (
Research on Eudocima moths is intrinsically twofold and may develop along both conservationist and agricultural lines. The larvae of these moths in the Neotropics feed exclusively on wild lianas of the family Menispermaceae (
On the other hand, Eudocima moths were recently recorded for the first time as occasional fruit pests in Latin America; E. apta and E. serpentifera on papaya in Mexico (
Records of occasional outbreaks of fruit-piercing moths affecting orchards such as those in Colombia and Mexico had already been reported by
Unusually dry periods such as those recorded by
During such unusually dry periods several factors may act together and affect the natural control of moths, increasing their populations. In fact, the emergence of parasitoids is known to decrease with increasing temperature and drought (
Preliminary evidence therefore suggests a relationship between rainfall following ENSO-related drought and demographic increase of moth populations. That being the case, outbreaks of moth pests such as fruit-piercing Eudocima in orchards are expected to become commoner in future reflecting the increased frequency of ENSO events associated with climate change (
Although moth collections do not necessarily match exactly the distribution and abundance of species in the field, in the absence of strongly biasing factors (e.g., a ‘maniac’ collector selectively searching for particular species with exaggerate sampling effort) there is nonetheless an association between the commonness of a species in the field and the number of relevant vouchers deposited in collections. Accordingly, when several specimens of a species with the same locality and date are found, we expect such collection record to somewhat mark a natural population increase. Notably, when our records, which mostly originate from ecological sampling programs, are plotted along a timeline the increase of records matches the end of an ENSO event in most cases (Fig.
Collections data provide invaluable information but there are some issues that cannot exclusively be addressed with these. Standardized long-term monitoring and sampling at night at selected sites with light traps, will be necessary to assess population dynamics over more ENSO cycles and to test the association between moth demography and climatic oscillations in the Neotropics. Surveys of host plants of fruit-piercing moths in natural areas will also shed light on several aspects of their biology, such as their life cycle and natural enemies. The importance of this information to preserve Eudocima diversity, especially regarding species exclusive of natural habitats, and reducing the damage caused to fruit orchards by pest species is evident.
We thank all the curators and support staff of the biological collections visited for their collaboration. We also thank Patrick Gros for the information of the Colombian Eudocima present in the collection of the museum of nature and technology in Salzburg, Austria. We acknowledge Roy Canty for their comments and suggestions on the document and Juliana Herrera for the advice in preparing the distribution map. Our thanks to the reviewers of the document for their valuable and timely comments.