Abstract
The ant genus Lenomyrmex was recently discovered and described from mid to high elevation rainforests in southern Central and northwestern South America. Lenomyrmex currently consists of six described species, which are only rarely collected. Here, we add a new species, Lenomyrmex hoelldobleri sp. n., which was discovered in a stomach content sample of the dendrobatid frog, Oophaga sylvatica, from northwestern Ecuador. Lenomyrmex hoelldobleri can be distinguished from other species in the genus by the presence of a well-developed petiolar node, whereas in all other species the node of the petiole is ill-defined. In addition to the shape of the petiolar node, L. hoelldobleri can be distinguished from the morphologically similar L. costatus by (i) the presence of the metanotal suture, (ii) the direction of the striae on dorsum of propodeum (concentrically transverse in L. hoelldobleri, longitudinal in L. costatus), (iii) the finely striate dorsum of postpetiole, (iv) its larger size, and (v) distinctly darker coloration. We also describe the gyne of Lenomyrmex foveolatus. This collection record from northwestern Ecuador extends the geographic distribution of L. foveolatus 400 km south from its previous record in Colombia. A revised taxonomic key to the workers and gynes of all described Lenomyrmex species is provided. We discuss the taxonomic relationship of L. hoelldobleri to other species in the genus and its biology based on the limited information that is currently available. Finally, we briefly discuss the feeding ecology of dendrobatid poison frogs in the context of providing a valuable source of rarely collected and cryptic new ant species.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 79-95 |
| Number of pages | 17 |
| Journal | ZooKeys |
| Volume | 2016 |
| Issue number | 618 |
| DOIs | |
| State | Published - Jan 1 2016 |
| Externally published | Yes |
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Keywords
- Cryptic species
- Dendrobatidae
- Feeding ecology
- Formicidae
- Myrmecophagy
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Animal Science and Zoology
Cite this
Lenomyrmex hoelldobleri : A new ant species discovered in the stomach of the dendrobatid poison frog, Oophaga sylvatica (Funkhouser). / Rabeling, Christian; Sosa-Calvo, Jeffrey; O’Connell, Lauren A.; Coloma, Luis A.; Fernández, Fernando.
In: ZooKeys, Vol. 2016, No. 618, 01.01.2016, p. 79-95.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lenomyrmex hoelldobleri
T2 - A new ant species discovered in the stomach of the dendrobatid poison frog, Oophaga sylvatica (Funkhouser)
AU - Rabeling, Christian
AU - Sosa-Calvo, Jeffrey
AU - O’Connell, Lauren A.
AU - Coloma, Luis A.
AU - Fernández, Fernando
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The ant genus Lenomyrmex was recently discovered and described from mid to high elevation rainforests in southern Central and northwestern South America. Lenomyrmex currently consists of six described species, which are only rarely collected. Here, we add a new species, Lenomyrmex hoelldobleri sp. n., which was discovered in a stomach content sample of the dendrobatid frog, Oophaga sylvatica, from northwestern Ecuador. Lenomyrmex hoelldobleri can be distinguished from other species in the genus by the presence of a well-developed petiolar node, whereas in all other species the node of the petiole is ill-defined. In addition to the shape of the petiolar node, L. hoelldobleri can be distinguished from the morphologically similar L. costatus by (i) the presence of the metanotal suture, (ii) the direction of the striae on dorsum of propodeum (concentrically transverse in L. hoelldobleri, longitudinal in L. costatus), (iii) the finely striate dorsum of postpetiole, (iv) its larger size, and (v) distinctly darker coloration. We also describe the gyne of Lenomyrmex foveolatus. This collection record from northwestern Ecuador extends the geographic distribution of L. foveolatus 400 km south from its previous record in Colombia. A revised taxonomic key to the workers and gynes of all described Lenomyrmex species is provided. We discuss the taxonomic relationship of L. hoelldobleri to other species in the genus and its biology based on the limited information that is currently available. Finally, we briefly discuss the feeding ecology of dendrobatid poison frogs in the context of providing a valuable source of rarely collected and cryptic new ant species.
AB - The ant genus Lenomyrmex was recently discovered and described from mid to high elevation rainforests in southern Central and northwestern South America. Lenomyrmex currently consists of six described species, which are only rarely collected. Here, we add a new species, Lenomyrmex hoelldobleri sp. n., which was discovered in a stomach content sample of the dendrobatid frog, Oophaga sylvatica, from northwestern Ecuador. Lenomyrmex hoelldobleri can be distinguished from other species in the genus by the presence of a well-developed petiolar node, whereas in all other species the node of the petiole is ill-defined. In addition to the shape of the petiolar node, L. hoelldobleri can be distinguished from the morphologically similar L. costatus by (i) the presence of the metanotal suture, (ii) the direction of the striae on dorsum of propodeum (concentrically transverse in L. hoelldobleri, longitudinal in L. costatus), (iii) the finely striate dorsum of postpetiole, (iv) its larger size, and (v) distinctly darker coloration. We also describe the gyne of Lenomyrmex foveolatus. This collection record from northwestern Ecuador extends the geographic distribution of L. foveolatus 400 km south from its previous record in Colombia. A revised taxonomic key to the workers and gynes of all described Lenomyrmex species is provided. We discuss the taxonomic relationship of L. hoelldobleri to other species in the genus and its biology based on the limited information that is currently available. Finally, we briefly discuss the feeding ecology of dendrobatid poison frogs in the context of providing a valuable source of rarely collected and cryptic new ant species.
KW - Cryptic species
KW - Dendrobatidae
KW - Feeding ecology
KW - Formicidae
KW - Myrmecophagy
UR - http://www.scopus.com/inward/record.url?scp=84989227688&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84989227688&partnerID=8YFLogxK
U2 - 10.3897/zookeys.618.9692
DO - 10.3897/zookeys.618.9692
M3 - Article
AN - SCOPUS:84989227688
VL - 2016
SP - 79
EP - 95
JO - ZooKeys
JF - ZooKeys
SN - 1313-2989
IS - 618
ER -