Leptogenys modiglianii

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Leptogenys modiglianii
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Leptogenys
Species group: modiglianii
Species: L. modiglianii
Binomial name
Leptogenys modiglianii
Emery, 1900

Leptogenys modiglianii casent0903974 p 1 high.jpg

Leptogenys modiglianii casent0903974 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Leptogenys modiglianii.

Identification

Arimoto (2017) - A member of the Leptogenys modiglianii species group. In full-face view, head distinctly longer than wide (CI: 88–90). Mandible curved near base, becoming straight apically. Antennal scape slightly longer than width of head (SI: 103–105), surpassing posterior margin of head by one-fifth to one-fourth of its length. Clypeus with lateral lobe, smoothly incurved between lateral lobe and median extension; median extension with convex apex. In profile, petiole slightly higher than long (LPI: 103–108), highest just anterior to posterodorsal angle; anterior and dorsal faces forming continuous curve; dorsal face distinctly sloping anteriad.

Keys including this Species

Distribution

Indonesia: Enggano Island.

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

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Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • modiglianii. Leptogenys modiglianii Emery, 1900d: 669, fig. 3 (w.) INDONESIA (Engano I.).

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Arimoto (2017) - (n = 5, lectotype in parentheses). HL: 1.52–1.68 (1.68), HLL: 1.11–1.22 (1.22), HLA: 0.18–0.20 (0.18), HW: 1.34–1.50 (1.50), CML: 0.25–0.28 (0.28), CI: 88–90 (90), CLI: 15–17 (17), SL: 1.40–1.58 (1.58), SI: 103–105 (105), EL: 0.30–0.34 (0.34), OI: 26–28 (28), PrL: 0.99–1.09 (1.09), PrH: 0.59–0.75 (0.75), PrW: 0.95–1.02 (1.02), WL: 2.49–2.68 (2.68), PeL: 0.85–0.92 (0.92), PeH: 0.91– 0.98 (0.98), PeW: 0.64–0.67 (0.67), LPI: 103–108 (106), DPI: 73–76 (73).

In full-face view, head distinctly longer than wide. Mandible curved near base, becoming straight apically; subapical tooth absent. Eye prominent, measuring one-fourth to one-third of head lateral margin length. Antennal scape slightly longer than width of head, surpassing posterior margin of head by one-fifth to one-fourth of its length; antennomere III ca. 2.3 times as long as wide. Clypeus with lateral lobe, smoothly incurved between lateral lobe and median extension; median extension moderately long, with convex apex. In dorsal view, pronotum longer than wide. Metanotal groove weakly impressed. In profile, propodeal dorsum almost straight. Petiole in profile slightly higher than long, highest just anterior to posterodorsal angle, with fan-shaped node; anterior and dorsal faces forming continuous curve; dorsal face distinctly sloping anteriad; posterior face almost straight but slightly convex.

Head weakly areolate-rugose, longitudinally striate anteriorly; vertex weakly and transversally striate. Mandible smooth. Gastral segment I with scalloped depressions that are irregular in size; distance between depressions distinctly greater than diameter of depressions; interspace between depressions with small punctures; segment II smooth.

Body black, slightly tinged with red; clypeus, mandible, antenna, legs and lower half of petiole dark-red. Apical two or three segments of gaster red-brown. Scalloped depressions on gastral segment I bearing hairs, small punctures without hairs.

Type Material

  • Lectotype (designated by Arimoto, 2017: 101), worker, Malaconni, Enggano Island, off the west coast of Sumatra, Indonesia, June, 1891, Elio Modigliani, CASENT 0903974, Museo Civico di Storia Naturale, Genoa.
  • Paralectotype (designated by Arimoto, 2017: 101), 3 workers, Malaconni, Enggano Island, off the west coast of Sumatra, Indonesia, June, 1891, Elio Modigliani, Museo Civico di Storia Naturale, Genoa.
  • Paralectotype (designated by Arimoto, 2017: 101), 1 worker, Malaconni, Enggano Island, off the west coast of Sumatra, Indonesia, June, 1891, Elio Modigliani, Naturhistorisches Museum Wien, Vienna.

References

References based on Global Ant Biodiversity Informatics

  • Arimoto K. 2017. Taxonomy of the Leptogenys modiglianii species group from southeast Asia (Hymenoptera, Formicidae, Ponerinae). ZooKeys 651: 79–106.
  • Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
  • Emery C. 1911. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118: 1-125.
  • Emery C. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale 40: 661-722.
  • Emery, C.. "Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei." Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova) (2) 20, no. 40 (1900): 661-722.