A new Helluodes Westwood species from Western Ghats with notes on habitat, distribution and phylogenetic relationships of genera Helluodes Westwood and Physocrotaphus Parry of the tribe Physocrotaphini Chaudoir (Insecta: Coleoptera: Carabidae: Anthiinae)
Author
Sabu, Thomas K.
Litter Entomology Research Unit, P. G. & Research Department of Zoology, St. Joseph's College, Devagiri, Calicut, Kerala, 673008, India Department of Entomology, College of Natural Resources & Environment, South China Agricultural University, Wushan, Guangzhou, 510640, China Corresponding author. E-mail: sabukthomas @ gmail. com
sabukthomas@gmail.com
Author
Abhitha, Prabhakar
Litter Entomology Research Unit, P. G. & Research Department of Zoology, St. Joseph's College, Devagiri, Calicut, Kerala, 673008, India Department of Entomology, College of Natural Resources & Environment, South China Agricultural University, Wushan, Guangzhou, 510640, China Corresponding author. E-mail: sabukthomas @ gmail. com
Author
Zhao, Danyang
text
Zootaxa
2008
2008-04-09
1745
1
30
46
https://biotaxa.org/Zootaxa/article/view/zootaxa.1745.1.3
journal article
10.11646/zootaxa.1745.1.3
11755334
5108342
Helluodes westwoodi
Chaudoir, 1869
(
Figs. 12–14
)
Helluodes westwoodi
Chaudoir, 1869: 203
.
Head.
Labrum very large, as wide as long, anterior margin distinctly emarginated in the middle, with a row of 6 marginal setae. Maxillary palpomere 4 flattened, short, inflexed medially and internal surface with distinct, deep puncture; roundly expanded from basal one third, roundly narrowed at apex. Mentum with bifid median tooth. Ligula elongate, setose with four elongated apical setae, three lateral seta on either side; distinctly broader in the middle.
Pronotum.
Large and slightly wider than head; less densely pubescent and sparsely punctate on disc; apical angles protruded, expanded, flexed inwardly, more rounded and slightly acute on summit; anterior and posterior transverse sulci shallow; lateral margins widely explanate, distinctly sinuated anterior to posterior angles or at some distance from base; posterior angles expanded, reflexed strongly and sharp at apex; basal foveae deep and wide, stretching forward as deep lateral furrows; base narrower than apex, distinctly oblique laterally, weakly sinuated medially.
Elytra.
Apices obliquely truncate with wide membranous margins; outer angles sinuate; elytra with intervals sparsely punctate and pubescent, lateral edges broad.
Legs.
Short, front tibiae emarginated at apex.
Venter.
Punctate-pubescent except the glabrous posterior area of prosternum. Sternites
3 to 6 in
male and female with one pair of paramedian setae.
Genitalia.
As for genus.
Measurements. Male (n=2),
TLA = 26.5 and 27.5; TLB = 24.0 and 25.0; TW = 8.5 and 10.0; PL = 3.0 and 4.0; PW = 6.0 and 7.0; EL = 14.0 and 15.0.
Female (n=2),
TLA = 25.0 and 26.0; TLB = 22.0 and 23.0; TW = 9.0; PL = 3.2; PW = 5.5; EL = 14.0 and 14.5.
Specimens examined (n=4).
Male labeled “Ex-Musaeo Chaudoir” / “westwoodii Chaud. Deccan,
S. Stevens
” (designated as
Lectotype
in the present work);
1 female
with the same label as that of
Lectotype
, and
1 male
and
1 female
labeled “
Ceylon
”.
All
specimens are in the
Chaudoir
collections of
MNHN
.
Distribution.
South
India
(Deccan),
Sri Lanka
(exact locality in both regions unknown).
Remarks.
Distinct from other two species with distinctly emarginate labrum; ligula broader in the middle; pronotum with rounded but slightly acute anterior angles, raised lateral margins with distinct sinuation anterior to posterior angles.