Pukupuku arunachalensis, Devanshu Gupta & Kailash Chandra & Aleš Bezděk, 2017

Devanshu Gupta, Kailash Chandra & Aleš Bezděk, 2017, Pukupuku arunachalensis sp. nov. (Coleoptera, Scarabaeidae, Rutelinae) from Arunachal Pradesh, India, European Journal of Taxonomy 257, pp. 1-11 : 2-10

publication ID	https://doi.org/ 10.5852/ejt.2017.257
publication LSID	urn:lsid:zoobank.org:pub:D7142011-F22B-48C0-987D-FD8015A0E985
DOI	https://doi.org/10.5281/zenodo.6024618
persistent identifier	https://treatment.plazi.org/id/4C196777-31DC-4BEC-A847-7E36ED9E01C5
taxon LSID	lsid:zoobank.org:act:4C196777-31DC-4BEC-A847-7E36ED9E01C5
treatment provided by	Plazi
scientific name	Pukupuku arunachalensis
status	sp. nov.

Treatment

Pukupuku arunachalensis sp. nov.

urn:lsid:zoobank.org:act:4C196777-31DC-4BEC-A847-7E36ED9E01C5

Figs 1–33 View Figs 1 – 2 View Figs 3 – 10 View Figs 11 – 19 View Figs 20 – 24 View Figs 25 – 33

Diagnosis

The newly described species can be easily distinguished by its unique structure of aedeagus, shape and size of mandibles which are sharply pointed at end with a small tooth in middle at outer edge (in lateral view), and four times as long as clypeus, pronotum smooth without setae, pygidium smooth (setae absent in male, present in female). See Table 1 for detailed differential characters separating P. arunachalensis sp. nov. from P. curtus and P. katsurai .

Etymology

The name arunachalensis refers to the Northeastern Himalayan state of India, Arunachal Pradesh.

Material examined

Holotype

INDIA: ♂ labeled: “ INDIA, Arunachal Pradesh / Namdapha / Tirap / Mizo / Vijay Nagar / 4 Oct. 1985 / collected S. Biswas ” ( ZSI Registration Number: 21630/H4A ).

Paratypes

INDIA: 2 ♂♂ and 3 ♀♀, same locality data as holotype ( ZSI Registration Number: 21630/H4A to 21635/H4A ).

Type locality

INDIA: Arunachal Pradesh state, Tirap district (now in Changlang district), Vijay Nagar, Namdapha National Park.

Type depository

Deposited in the collections of the Zoological Survey of India, New Alipore, Kolkata.

Description (holotype, Figs 1 View Figs 1 – 2 , 3–24 View Figs 3 – 10 View Figs 11 – 19 View Figs 20 – 24 )

MEASUREMENTS. Total body length of males (excluding mandibles): 20.0–21.0 mm (holotype 20.0 mm), total body length of females: 19.0–20.0 mm.

DETAILED MEASUREMENTS. Mandibular horn: length 16.0 mm. Clypeus: length 4.0 mm, inter ocular distance (distance between inner sides of each eye) 5.8 mm. Pronotum: length 9.9 mm, maximum width 17.5 mm. Pygidium: length 4.5 mm, width 12.5 mm. Elytra: length 18.4 mm, maximum width 19.3 mm. Aedeagus: length 7.6 mm, maximum width 2.5 mm; Parameres: length 3.0 mm, maximum width 2.2 mm.

BODY. Broadly oval and convex.

HEAD ( Figs 3–6 View Figs 3 – 10 ). Glabrous, entirely smooth without any hairs dorsally. Clypeus trapezoidal, convergent in basal half, anterior clypeal margin slightly arcuate with few short and long hairs, anterior angles rounded, surface with few scattered punctures in middle and at sides, slightly convex in middle, clypeofrontal suture nearly absent with only small carina at each side, vertex with moderately large rugopunctation. Area near each eye smooth and shining. Eye canthus spatulate, wide near end and small at base, surface smooth. Labrum straight with long hairs at margin. Mentum with a rather large rounded hollow at middle. Mandibles flat and broad at base, sharply pointed at end with a small tooth in middle (in lateral view), almost four times as long as length of clypeus.

PRONOTUM ( Fig. 7 View Figs 3 – 10 ). Convex, 1.9 times as wide as long, widest before middle, without any hairs or setae on dorsal surface, with rather small but indistinct punctures in middle, laterally smooth, narrowly marginate except near base, base distinctly lobed before scutellum, anterior, lateral, and hind angles rounded.

SCUTELLAR PLATE ( Fig. 8 View Figs 3 – 10 ). Triangular, base carinate, lateral sides curved, apex rounded, densely punctate on sides with a line of punctures.

ELYTRA ( Figs 9–10 View Figs 3 – 10 ). Convex, almost as wide as long, widest at middle; rather densely and closely punctate near sutural margins from base to apex, rather sparsely and finely punctate in middle and at lateral sides, entirely yellow with a brown spot behind scutellar apex near sutural margin, brown pit at base in middle, two transverse bands, one large and one small, at lateral side on humeral umbone (in lateral view), apex with a large brown band on each elytron.

LEGS ( Figs 11–15 View Figs 11 – 19 ). Protibae tridentate, claws not cleft. Meso- and metatibiae unidentate, outer claw with a ventral tooth respectively, 4th tarsomere of both meso- and metatibiae with a single acuminate ventroapical process with a pair of fine long setae.

PYGIDIUM ( Fig. 16 View Figs 11 – 19 ). Triangular, thrice as broad as long, without hairs.

VENTER ( Figs 17–19 View Figs 11 – 19 ). Ventral surface of thorax and metasternum densely hairy. Prosternum with a small process in middle of posterior margin, posterior face of it flat. Meso- and metasternal processes absent. Abdominal sternites brown black, not abbreviated, smooth without hairs, segments curved in shape.

AEDEAGUS ( Figs 20–22 View Figs 20 – 24 ). Symmetrical, parameres fused at base, rather flat, bare.

SEXUAL DIMORPHISM ( Figs 25–33 View Figs 25 – 33 ). Females differ from males in the following characters: oval in shape, feeble shining; anterior margin of clypeus bilobed, surface rather strongly rugopunctate, mandibles normally developed ( Fig. 25 View Figs 25 – 33 ); pronotum rather distinctly and finely punctate ( Fig. 27 View Figs 25 – 33 ); abdomen yellowish and shining, densely hairy with segments straight, 5th segment broadest in middle ( Fig. 26 View Figs 25 – 33 ); pygidium densely hairy ( Fig. 28 View Figs 25 – 33 ).

COLOUR. Yellow with brown marking on lateral sides of elytra.

Distribution

So far known only from Vijay Nagar in the state of Arunachal Pradesh, India ( Figs 23–24 View Figs 20 – 24 ).

Collecting circumstances

Collected at night by light after dusk.