Taxonomic studies on the ant genus <i> Lepisiota </ i> Santschi 1926 (Hymenoptera: Formicidae: Formicinae) in India, with description of four new species
Author
Harshana, Anand
Author
Dey, Debjani
text
Oriental Insects
2022
2022-10-05
CLXVI
CLXVI
1
34
http://dx.doi.org/10.1080/00305316.2022.2125096
journal article
10.1080/00305316.2022.2125096
51dd2c60-1466-4f57-9569-41057d08cd3b
7152933
Lepisiota layla
Wachkoo, Bharti and Akbar, 2021
(
Fig. 7D–F
)
Lepisiota layla
Wachkoo, Bharti and Akbar 2021: 232
.
Type
workers
, Kotla,
Himachal Pradesh
,
India
.
Material examined
INDIA
:
Madhya Pradesh
:
Pachmarhi
,
22°28
ʹ
50”N
78°26
ʹ
29”E
,
1050 m
,
3 workers
,
07.IX.2020
, Coll.
A. Harshana
.
Measurements and indices
Workers (N = 2). EL: 0.19; HL: 0.59–0.61; HW: 0.57–0.60; MML: 0.32; PH: 0.26–0.27; PRW: 0.41–0.42; SL: 0.62–0.65; TL: 2.76–2.81; WL: 0.87–0.89; CI: 97–98; OI: 33–32; REL: 31–32; SI: 108–109.
Description (Worker): Head
Head slightly longer than broad, subquadrate, sides weakly convex, posterior margin almost straight, posterolateral corners rounded (
Fig. 7F
); palp formula 6,4 and third maxillary segment from base longest of all segments while sixth segment distinctly longer than the fifth segment; mandible with five teeth on masticatory margin, third tooth from apex smaller than the fourth tooth; antennae 11 segmented, antennal scape extending to posterior margin of head not more than 1/3
rd
of its length, antennal insertions touching posterior clypeal margin; clypeus dorsally convex, subcarinate at the middle, having sub-erect comparatively long pubescent hairs, posterior margin with a pair of long erect setae, anterior margin with two pairs of long erect setae with a median seta, anterior clypeal margin weakly convex; eyes broadly oval, weakly convex, placed little behind mid-length of the head; three ocelli present.
Mesosoma
Promesonotum convex, higher than remaining mesosoma in profile view (
Fig. 7D
); propodeum with broad, thick, posteriorly diverging spines and propodeal declivity steep; fore tibiae having pectinate spur at the distal end, basitarsus having a hairy notch at the proximal end.
Metasoma
Petiole dorsally with angular sides, without distinct teeth or spines, shallowly emarginated, and sides slightly convex; acidopore well-developed and fringed with hairs.
Head, mesosoma, and metasoma covered with abundant whitish long erect setae (
Fig. 7D–F
); legs with sub-erect to erect comparatively short whitish setae; antennal scape with sub-erect to erect setae while funicular segments with sub-erect to decumbent pubescence; mandibular surfaces with fine setae.
Sculpture and colour
Head, mesosoma, and metasoma are smooth and shining except for rugose mesometapleuron. Body uniformly black; antennal scape (except the distal end), tarsi of legs yellowish-brown; mandible, the distal end of antennal scape, funicular segments of antennae brown.
Comments
Lepisiota layla
seems to be a rare species. It shows similarities with the South African species,
Lepisiota capensis junodi
(Forel, 1916)
, in having numerous whitish erect setae all over the body but it differs by lack of bispinose petiole.
Distribution in India
: Himachal Pradesh, Madhya Pradesh*.