Aenictus eguchii

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Jaitrong W, Yamane S (2013) The Aenictus ceylonicus species group (Hymenoptera, Formicidae, Aenictinae) from Southeast Asia. Journal of Hymenoptera Research 31 : 165–233, doi. Versioned wiki page: 2013-03-20, version 32107, https://species-id.net/w/index.php?title=Aenictus_eguchii&oldid=32107 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Jaitrong2013JournalofHymenopteraResearch31,
author = {Jaitrong, Weeyawat AND Yamane, Seiki},
journal = {Journal of Hymenoptera Research},
publisher = {Pensoft Publishers},
title = {The Aenictus ceylonicus species group (Hymenoptera, Formicidae, Aenictinae) from Southeast Asia},
year = {2013},
volume = {31},
issue = {},
pages = {165--233},
doi = {10.3897/JHR.31.4274},
url = {http://www.pensoft.net/journals/jhr/article/4274/abstract},
note = {Versioned wiki page: 2013-03-20, version 32107, https://species-id.net/w/index.php?title=Aenictus_eguchii&oldid=32107 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - The Aenictus ceylonicus species group (Hymenoptera, Formicidae, Aenictinae) from Southeast Asia
A1 - Jaitrong W
A1 - Yamane S
Y1 - 2013
JF - Journal of Hymenoptera Research
JA -
VL - 31
IS -
UR - http://dx.doi.org/10.3897/JHR.31.4274
SP - 165
EP - 233
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-03-20, version 32107, https://species-id.net/w/index.php?title=Aenictus_eguchii&oldid=32107 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/JHR.31.4274

Wikipedia/ Citizendium:

<ref name="Jaitrong2013Journal of Hymenoptera Research31">{{Citation
| author = Jaitrong W, Yamane S
| title = The Aenictus ceylonicus species group (Hymenoptera, Formicidae, Aenictinae) from Southeast Asia
| journal = Journal of Hymenoptera Research
| year = 2013
| volume = 31
| issue =
| pages = 165--233
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/JHR.31.4274
| url = http://www.pensoft.net/journals/jhr/article/4274/abstract
| pmc =
| accessdate = 2019-07-21

}} Versioned wiki page: 2013-03-20, version 32107, https://species-id.net/w/index.php?title=Aenictus_eguchii&oldid=32107 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Hymenoptera
Familia: Formicidae
Genus: Aenictus

Name

Aenictus eguchii Jaitrong & Yamane, 2013 sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material examined

Holotype. VIETNAM: Worker from N. Vietnam, Ha Tai Prov., Ba Vi N.P. (ca. 400 m alt.), 12.XI.1999, leg. K. Eguchi, Eg99-VN-126 (VNMN). Paratypes. Seventeen workers, same data as holotype (BMNH, MCZC, SKYC, THNHM).

Non-type material examined

VIETNAM: N. Vietnam, Hai Phong Prov., Cat Ba N.P., 15.VII.1999, leg. V. T. Bui (SKYC).

Worker measurements

(holotype and paratypes, n = 10). TL 2.20–2.60 mm; HL 0.46–0.58 mm; HW 0.43–0.55 mm; SL 0.30–0.43 mm; ML 0.70–0.85 mm; PL 0.18–0.23 mm; CI 92–96; SI 71–77.

Worker description

(holotype and paratypes). Head in full-face view subrectangular, slightly longer than broad, sides convex and posterior margin almost straight. Antennal scape reaching 2/3 of head length. Frontal carina relatively long, slightly extending beyond the level of posterior margin of torulus. Parafrontal ridge absent. Anterior clypeal margin almost straight, lacking denticles and concealed by curved anterior extension of frontal carina. Masticatory margin of mandible with large acute apical tooth followed by a medium-sized subapical tooth, 2 denticles, and a medium-sized basal tooth; basal margin almost straight. Maximum width of gap between anterior clypeal margin and mandibles about 2.1 times as broad as maximum width of mandible. Promesonotum weakly convex dorsally and sloping gradually to metanotal groove; metanotal groove indistinct; metapleural gland bulla relatively large and transparent, its maximum diameter about 2.8 times as long as distance between propodeal spiracle and metapleural gland bulla. Propodeum in profile with almost straight or feebly concave dorsal outline; propodeal junction angulated, nearly right-angled; declivity of propodeum shallowly concave, and encircled with a rim. Petiole almost as long as high, with its dorsal outline weakly convex; subpetiolar process generally very low, subrectangular with its anteroventral and posteroventral corners angulate, and margin between the corners almost straight. Postpetiole almost as long as petiole, with its dorsal outline convex.
Head including antennal scape entirely smooth and shiny. Promesonotum smooth and shiny except for punctate anteriormost portion; mesopleuron, metapleuron, and propodeum entirely punctate; in addition, mesopleuron with longitudinal rugae. Petiole and postpetiole entirely reticulate except small area on dorsa smooth and shiny. Legs entirely smooth and shiny.
Head and mesosoma dorsally with relatively dense standing hairs; longest pronotal hair 0.20–0.23 mm long. Head, mesosoma, petiole, and postpetiole reddish brown; gaster and legs yellowish brown.

Etymology

The scientific name is dedicated to Dr. Katsuyuki Eguchi, who donated the type series to us.

Distribution

Vietnam (Fig. 25B).

Bionomics

Little is known about the bionomics of Aenictus eguchii. However, judging from the data for the specimens examined this species inhabits lowland primary forests.

Remarks

Aenictus eguchii is most similar in general appearance to Aenictus jawadwipa from Sundaland. However, they differ in some characters. The posteroventral corner of the subpetiolar process is bluntly angulate (not spiniform) in the former, but acutely angulate (spiniform) in the latter. The dorsal outline of the propodeum is straight in the latter but weakly convex in the former. The metapleural gland bulla is more strongly sculptured (puncto-reticulate and opaque) in the former than in the latter (weakly sculptured and shiny). The promesonotum in profile is more distinctly convex in the former than in the latter.

Original Description

  • Jaitrong, W; Yamane, S; 2013: The Aenictus ceylonicus species group (Hymenoptera, Formicidae, Aenictinae) from Southeast Asia Journal of Hymenoptera Research, 31: 165-233. doi

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