Camponotus keralensis

AntWiki: The Ants --- Online
Camponotus keralensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Camponotus
Species: C. keralensis
Binomial name
Camponotus keralensis
Karmaly & Narendran, 2006

Other than a statement that the type was collected from a disturbed habitat, nothing is known about the biology of Camponotus keralensis.

Identification

Karmaly & Narendran (2006) - This species comes close to Camponotus thraso in the following characters: 1. Head rectangular; 2. Clypeus carinate with a short lobe, its anterior margin transverse; 3. Antennae slender filiform; 12 jointed; 4. Thorax viewed from side forming a regular arch; 5. Circular anal orifice at the apex of the hypopygim ventrally guarded by guard hairs. However it differs from Camponotus thraso in having: 1. Teeth not obsolete (in Camponotus thraso teeth obsolete); 2. Meso-metanotal suture distinct (in Camponotus thraso meso-metanotal suture indistinct); 3. Petiolar node convex in front, flat posteriorly (in Camponotus thraso petiolar node biconvex as long as broad).

Keys including this Species

Distribution

Kerala, India.

Distribution based on Regional Taxon Lists

Oriental Region: India (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.

  • keralensis. Camponotus (Tanaemyrmex) keralensis Karmaly & Narendran, 2006: 78, figs. 23, 24 (w.) INDIA (Kerala).
    • Status as species: Bharti, Guénard, et al. 2016: 24.

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

Description

Worker

TL = 5 mm; HL = 1.2 mm; HW = 0.94 mm; CI = 78.33 mm; SL = 1.03 mm; SI = 109.57 mm; ED= 0.23 mm; PW = 0.73 mm; AL = 1.9 mm.

Colour: Very dark castaneous brown; antennae, pedicel, legs lighter than remaining parts; basal half of the scape, 1st funicular segment, coxa, trochanter, tarsi, pale yellowish brown; pronotum reddish brown.

Sculpture and Hair pattern: Whole body very minutely reticulate punctate; pubescence almost absent; very scanty scattered erect hairs visible; abdomen shining.

Head: Rectangular, as broad posteriorly as in front; cheeks straight; occiput rounded; mandibles moderately broad, 6-toothed (one apical tooth followed by 5 acute teeth); clypeus carinate with a short lobe, its anterior margin transverse, posterior margin concave; frontal lobe distinct; frontal carinae short, wide apart posteriorly; antennal carinae short, moderately close together, divergent posteriorly; antennal scrobe very short; antennae slender, filiform, 12 jointed, antennal scape extending above the vertex; all segments of funiculus longer than broad; club single segmented, longer than other funicular segments. Relative measurements of length of antennal segments. Scape = 1.03 mm; F1 = 0 23 mm; F2 = 0.23 mm; F3 = 0.23 mm; F4 = 0.33 mm; F5 = 0.28 mm; F6 = 0.23 mm; F7 = 0.19 mm; F8 = 0.14 mm; F9 = 0.23 mm; F10 = 0.19 mm; Club (F11) = 0.38 mm. Eyes small, situated above the midlength of head, postero-lateral.

Thorax: Viewed from side forming a regular arch, somewhat depressed in front, strongly compressed posteriorly; pronotum anteriorly rounded, narrow, posteriorly broad; pro-mesonotal suture distinct; meso-metanotal stuture indistinct; propodeum steeply sloping from ventral base of petiole; legs short; tibiae compressed, not prismatic, destitute of spines beneath; basal region of tarsi rounded, slightly curved, tibial spurs visible.

Abdomen: Pedicel sessile, nodiform; petiolar node convex anteriorly, flat posteriorly; gaster laterally forming an arch, elongate, last gastral segment ends with circular anal orifice guarded by guard hairs.

Type Material

Holotype: Worker: INDIA: Kerala, Bharanaganam [Kottayam], Sureshan P.M., 28.x.2000 (Department of Zoology, Aluva). Paratype: 1 W: With the same data as that of holotype (Department of Zoology, Aluva).

Etymology

Named after the State from which the specimen was collected.

References

References based on Global Ant Biodiversity Informatics

  • Karmaly K.A., and T. C. Narendran. 2006. Indian ants: genus Camponotus: 165 pp. Teresian Carmel Publications, Kerala.
  • Presty J., and K. A. Karmaly. 2016. A study on the diversity and distribution of genus Camponotus Mayr (Hymenoptera: Formicidae) in Kerala: ecologically significant agents in ecosystems functioning. In: Chakravarhty A. K, and S. Sridhara (eds), Arthropod diversity and conservation in the tropics and sub-tropics. Springer edition. Pages 255-270.