The Ants of Africa
Genus Polyrhachis
Polyrhachis striativentris Emery - new status

Polyrhachis striativentris Emery - new status

return to key {link to the Hymenoptera Name Server} Type location Ivory Coast (P. militaris Fab. race striativentris n. stirps., Emery, 1892d: 566, worker; Santschi, 1912b: 166, queen) Assinie, 1886, Ch. Alluaud. Here raised to full species from race or junior synonym of Polyrhachis militaris .


Emery's (1892d) description is at {original description}. Santschi (1912b) described a queen of Polyrhachis militaris Fab. strips striativentris Em., from the Ivory Coast, J H Lohier, one queen, as TL 12 mm, head narrower than the alitrunk; head, alitrunk and gaster longitudinally striate, the scutellum transversely striate; covered with a dense pubescence partly masking the sculpture.

WORKER - TL 14.5 mm, HL 3.15, HW 2.8, SL 4.25, PW (base of propodeal spines) 2.7; CI 83, SI 163; alitrunk dorsum completely margined the pronotum with highly raised lateral flanges. Striations on the alitrunk dorsum and gaster well defined, although very fine and dense on the gaster. Scapes and legs with very fine but distinct sculpturation (other militaris "varieties" are dull but essentially smooth). Scapes with nil or very few erect hairs. Pubescence quite sparse on the alitrunk to almost nil on the gaster dorsum.

Bolton (1973b: 313) synonymized this under Polyrhachis militaris, an act typical of his treatment of separations by earlier workers, describing some species as showing variations, in contrast with erecting new species on often quite small differences.

Rigato (2016) retained this as a synonym of P. militaris but did not sight the type.


{Polyrhachis striativentris}The photomontage is of the holotype worker, collated from http://www.antweb.org/specimen.do?name=casent0905628.


Oxford University Museum specimens

Polyrhachis striativentris
B Taylor det.

Ivory Coast
Erena Dupont
ii.2014
Taļ National Park
5˚45'00" N
7˚07'00" W
03
1
{album}
Polyrhachis striativentris
B Taylor det.
Ivory Coast
Erena Dupont
iii.2014
Taļ National Park
5˚45'00" N
7˚07'00" W
12

1
{album}
Polyrhachis striativentris
B Taylor det.
Queen
Ivory Coast
Erena Dupont
iii.2014
Taļ National Park
5˚45'00" N
7˚07'00" W
11
1
{album}

{Polyrhachis striativentris}The photomontage is of a worker from Ivory Coast, Taļ National Park; collector Erena Dupont, ii.2014


{Polyrhachis striativentris}The photomontage is of a worker from Ivory Coast, Taļ National Park; collector Erena Dupont, iii.2014


{Polyrhachis striativentris queen}The photomontage is of a queen from Ivory Coast, Taļ National Park; collector Erena Dupont, iii.2014.

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© 2015, 2018 - Brian Taylor CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.

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