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Male secondary sexual structures and the systematics of the Thereus oppia species group (Lepidoptera, Lycaenidae, Eumaeini).

Robbins RK, Heredia MD, Busby RC - Zookeys (2015)

Bottom Line: Diagnostic traits, especially male secondary structures, within the Thereus oppia species group are illustrated.Distributional and biological information is summarized for each species.Three species have been reared, and the caterpillars eat Loranthaceae.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Entomology, PO Box 37012, NHB Stop 105, Smithsonian Institution, Washington, DC 20013-7012 USA.

ABSTRACT
The Thereus oppia species group includes species with and without a scent pad, which is a histologically and morphologically characterized male secondary sexual structure on the dorsal surface of the forewing. To assess the hypothesis that these structures are lost evolutionarily, but not regained (Dollo's Law), the taxonomy of this species group is revised. Thereus lomalarga sp. n., and Thereus brocki sp. n., are described. Diagnostic traits, especially male secondary structures, within the Thereus oppia species group are illustrated. Distributional and biological information is summarized for each species. Three species have been reared, and the caterpillars eat Loranthaceae. An inferred phylogeny is consistent with the hypothesis that scent pads in the Thereus oppia species group have been lost evolutionarily twice (in allopatry), and not re-gained.

No MeSH data available.


Related in: MedlinePlus

Male genitalia of the Thereusoppia species group. Lateral view of capsule and penis (top) with penis tip enlarged and ventral view (bottom). Posterior of insect to the right 15Thereusorasus (arrow points to ventral brush organ) 16Thereuslomalarga (arrow points to position of small teeth) 17Thereusoppia18Thereusbrocki. Scale bars: 0.5 mm.
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Figure 4: Male genitalia of the Thereusoppia species group. Lateral view of capsule and penis (top) with penis tip enlarged and ventral view (bottom). Posterior of insect to the right 15Thereusorasus (arrow points to ventral brush organ) 16Thereuslomalarga (arrow points to position of small teeth) 17Thereusoppia18Thereusbrocki. Scale bars: 0.5 mm.

Mentions: Another two Thereus species have been discovered with scent patches similar to those of the Thereusoppia species group (Figs 10, 12, 13). One of these species has a ventral forewing androconial “brush”, and both share virtually indistinguishable male and female genitalic structures with Thereusorasus and Thereusoppia (Figs 15–24). For these reasons, we add them to the Thereusoppia species group. We have reared one of the newly discovered species in Colombia and are documenting its life history (Heredia and Robbins, in prep.).


Male secondary sexual structures and the systematics of the Thereus oppia species group (Lepidoptera, Lycaenidae, Eumaeini).

Robbins RK, Heredia MD, Busby RC - Zookeys (2015)

Male genitalia of the Thereusoppia species group. Lateral view of capsule and penis (top) with penis tip enlarged and ventral view (bottom). Posterior of insect to the right 15Thereusorasus (arrow points to ventral brush organ) 16Thereuslomalarga (arrow points to position of small teeth) 17Thereusoppia18Thereusbrocki. Scale bars: 0.5 mm.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4591724&req=5

Figure 4: Male genitalia of the Thereusoppia species group. Lateral view of capsule and penis (top) with penis tip enlarged and ventral view (bottom). Posterior of insect to the right 15Thereusorasus (arrow points to ventral brush organ) 16Thereuslomalarga (arrow points to position of small teeth) 17Thereusoppia18Thereusbrocki. Scale bars: 0.5 mm.
Mentions: Another two Thereus species have been discovered with scent patches similar to those of the Thereusoppia species group (Figs 10, 12, 13). One of these species has a ventral forewing androconial “brush”, and both share virtually indistinguishable male and female genitalic structures with Thereusorasus and Thereusoppia (Figs 15–24). For these reasons, we add them to the Thereusoppia species group. We have reared one of the newly discovered species in Colombia and are documenting its life history (Heredia and Robbins, in prep.).

Bottom Line: Diagnostic traits, especially male secondary structures, within the Thereus oppia species group are illustrated.Distributional and biological information is summarized for each species.Three species have been reared, and the caterpillars eat Loranthaceae.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Entomology, PO Box 37012, NHB Stop 105, Smithsonian Institution, Washington, DC 20013-7012 USA.

ABSTRACT
The Thereus oppia species group includes species with and without a scent pad, which is a histologically and morphologically characterized male secondary sexual structure on the dorsal surface of the forewing. To assess the hypothesis that these structures are lost evolutionarily, but not regained (Dollo's Law), the taxonomy of this species group is revised. Thereus lomalarga sp. n., and Thereus brocki sp. n., are described. Diagnostic traits, especially male secondary structures, within the Thereus oppia species group are illustrated. Distributional and biological information is summarized for each species. Three species have been reared, and the caterpillars eat Loranthaceae. An inferred phylogeny is consistent with the hypothesis that scent pads in the Thereus oppia species group have been lost evolutionarily twice (in allopatry), and not re-gained.

No MeSH data available.


Related in: MedlinePlus