A revision of the Pediacus Shuckard 1839 (Coleoptera: Cucujidae) of Asia and Australasia
Author
Marris, John W. M.
Author
Ślipiński, Adam
text
Zootaxa
2014
2014-01-13
3754
1
32
58
journal article
46694
10.11646/zootaxa.3754.1.2
f435fbaf-802a-4202-92ff-6d69aa405739
1175-5326
252769
D873973D-A4F5-455F-83DD-4B3E564DB630
Pediacus bhutanicus
Sen Gupta
Figs. 3
A–D.
Pediacus bhutanicus
Sen Gupta, 1978: 221
.
Diagnosis.
Recognisable by the combination of the following characters: large size (length
4.5 mm
), head and pronotum densely and deeply punctured, pronotum with acute anterior, postero-medial and posterior denticles, elytra with sides broadly curved. This species is similar to
Pediacus pendleburyi
sp. nov.
, but the sides of the pronotum are subparallel anteriorly and the anteromedial denticle is weakly produced to obsolete.
Redescription. Body
length
4.5 mm
(n=1), moderately elongate, 2.74× longer than wide; colour red-brown, head darker; pubescence long, pale, appressed and moderately conspicuous; surface moderately dull.
Head
transverse, 1.91× wider than long; puncturation deeply impressed and dense medially, increasing in size and density laterally with punctures separated by less than their diameter; setae long and appressed, conspicuous; microsculpture granulate, surface dull; eyes small, moderately projecting, ocular index 0.71, finely faceted, postocular denticle absent; antennae as in
Fig. 3
C, antennomere VII larger than VI and VIII.
Pronotum
transverse, 1.30× wider than long, widest at about anterior 1/3, sides weakly rounded; lateral margins explanate, strongly reflexed with anterior, postero-medial and posterior denticles prominent and acute, antero-medial denticle weakly produced to obsolete; disc moderately impressed with a distinct pair of anterior depressions; puncturation, setation and microsculpture as for head, impunctate median strip faintly visible in basal 1/3.
Elytra
elongate,1.91× longer than wide, sides broadly curved; epipleura moderately explanate; puncturation moderately dense but weakly impressed basally, becoming more dense and deeply impressed laterally, puncturation faint on disc; setation moderately long, appressed and conspicuous; microsculpture granulate.
Genitalia
for male as in
Fig. 3
D, parameres elongate, rounded apically; internal sac with microspinules basally and lacking a sclerotized apical section.
FIGURE 2.
Pediacus australis
sp. nov.
(A, D, E, H) specimen from Philippines, Mindanao; (B, C, F, G) specimen from Australia. (A, B) Head and pronotum; (C, D) antenna; (E, F) dorsal habitus; (G, H) aedeagus.
Type
material.
Holotype
(
male
): “[
Bhutan
]
km 87 von 2215
[or 22/5]
Phuntsholing
// Nat. - Hist. Museum Basel Bhutan Expedition 1972 // HOLOTYPE [red lettering] //
Pediacus bhutanicus T. Sen Gupta
♂
[Handwritten]” (
NHMB
).
Distribution.
Bhutan
.