Carpophilus (Ecnomorphus) jahari Dasgupta et Pal, 2019

Dasgupta, J. & Pal, T. K., 2019, New species of Carpophilus Stephens from Arunachal Pradesh, India (Coleoptera: Nitidulidae: Carpophilinae), Far Eastern Entomologist 378, pp. 23-28 : 24-27

Carpophilus (Ecnomorphus) jahari Dasgupta et Pal , sp. n.

http://zoobank.org/ urn:lsid:zoobank.org:act:D6F47F87-00A5-4754-AE04-F61C328ED24B

Figs 1–8

MATERIAL EXAMINED. Holotype – ♂, India: Arunachal Pradesh, East Siang Survey ,

3 km-O-Boleng, under bark of hollock ( Terminalia myriocarpa Van Heurck & Müll. Arg. ),

21.II 1989, T. K. Pal. Paratype: 1 ♀ , the same label as holotype.

DIAGNOSIS. Body broadly elongate and sub-ovate, sub-depressed, moderately shiny,

dorsum dark brown with pale yellowish paired elliptical patches (not well-defined) on elytra;

lateral pronotal carina, legs and antennae except scape and club somewhat paler; cuticle nearly glabrous except some short, fine, silvery-white pubescence on sides ( Fig. 1 ). Ventral side of body dark brown with middle of head, lateral sides of prosternum and elytra, apical portion of abdomen and legs somewhat pale; densely punctate; hypomeron rugose ( Fig. 2 ).

Head about 1.2× as broad as long, vertex rather convex, frons less so; punctures on vertex coarser than eye facets, round, separated by about 0.5–1 diameter of punctures; eyes moderately large, about 0.4× as long as head, temple short and sloped posterad. Antenna about 1.5×

as long as head; antennal club 1.8× as long as broad, dark, about 0.3× as long as antenna.

Prothorax broader than long (l.0: 1.5), broader at base and converging towards apex,

anterior margin emarginate; sides slightly arcuate in anterior half and sub-parallel posterad,

posterior margin feebly emarginate and sinuate on either side near extremity, anterior angles acute, posterior angles pointed behind. Pronotum little convex, surface punctate, punctures round, slightly larger than those of vertex, moderately deep, punctures separated on top of pronotal disc by 0.5–1 diameter.

Prosternal projection devoid of carina; mesoventrite densely punctate, devoid of both median and lateral carina; mesocoxal borders form a small axillary space near the coxal border of metaventrite.

Scutellar shield transverse (1.0:1.2), somewhat triangular with sides arcuate, punctate,

punctures about the same size as those on vertex, separated by about 1–3 diameters of punctures.

Elytra about as broad as long, anterior margin slightly emarginate, closely fit with posterior margin of prothorax, humeral angles sharply obtuse, sides arcuate, apices somewhat truncate;

punctures round, about same size as those on pronotum, moderately densely arranged, separated by 1–2 diameters; pubescence very sparse, only a few tiny, fine, silvery setae present at the sides.

ventral view; 3 – anal sclerite (photo), ventral view; 4 – the same (line diagram); 5 – male genitalia (photo), lateral view; 6 – the same (line diagram); 7 – male genitalia (photo), ventral view; 8 – the same (line diagram).

1858: 9 – body, dorsal view; 10 – anal sclerite and spiculum gastrale; 11 – male genitalia

(photo), lateral view; 12 – the same (line diagram); 13 – the same (photo), ventral view; 14 –

the same (line diagram); 15–18 – C. (E.) signatus Grouvelle, 1908 , male genitalia: 15 – photo,

lateral view; 16 – photo, ventral view; 17 – line diagram, lateral view; 18 – line diagram,

ventral view.

Exposed tergites of abdomen 1.4× broader than long, about 0.5× as long as elytra, punctures smaller and much shallower than those on elytra; pubescence sparse, posteriorly directed.

Legs with tibiae less flattened; tarsi about 0.5× as long as tibiae.

Aedeagus. Male genitalia in lateral view ( Figs 5, 6 ) somewhat L-shaped, with corners curved, apex rounded; in ventral view ( Figs 7, 8 ) the lateral lobes of tegmen (parameres) are longer than broad, apices upturned. Anal sclerite accommodates the spiculum gastrale (Figs

3, 4); apical margin of anal sclerite somewhat granular with short and sparse setae.

MEASUREMENTS (in mm.). Total length 2.28, width of head across eyes 0.46, length of antenna 0.58, length and width of prothorax 0.57 and 0.93, length and width of elytra together 0.89 and 0.98 (n=1).

DIAGNOSIS. New species shows resemblances with Carpophilus (Ecnomorphus)

plagiatipennis Motschulsky, 1858 , but can be differentiated by pale patches on elytra not well-defined; anal sclerite sparsely setose; male genitalia in lateral view shows L-shaped parameres with apex rounded, in ventral view the sides of parameres are subparallel and apex distinctly upturned; the shape of the body being slightly more elongated [in C. plagiatipennis pale patches on elytra more or less elliptical and edges well-defined ( Fig. 9 ); anal sclerite densely setose apically ( Fig. 10 ); male genitalia in lateral view ( Figs 11, 12 ) shows sickleshaped parameres with pointed apex, in ventral view ( Figs 13, 14 ), the sides of the parameres are distinctly diverging posterad, apex slightly upturned; shape of the body proportionately broader]. New species also shows certain resemblances with C. (E.) signatus Grouvelle, 1908

but can be differentiated by its anterior pronotal angles acute and posterior pronotal angles pointed behind, anterior margin of pronotum emarginate, sides slightly arcuate in anterior half and sub-parallel posterad, posterior margin feebly emarginate and sinuate on either side near extremity; parameres in ventral view having uniform outer margins, somewhat parallel,

with apex upturned; in lateral view, parameres L-shaped, apex rounded, devoid of any setae

(in C. signatus anterior and posterior angles of pronotum broadly rounded, anterior margin of pronotum almost straight, sides uniformly arcuate, posterior margin almost straight with a median notch above scutellum; parameres in ventral view ( Figs 16, 18 ) having irregular outer margins, and converge apically like folded hands, apex pointed; in lateral view ( Figs 15, 17 ),

broad base of parameres abruptly narrowed behind basal third with acute apices, somewhat sickle-shaped, studded with short setae on inner margins in apical three-fourths).

DISTRIBUTION. India: Arunachal Pradesh.

ETYMOLOGY. The species is named after Mr. Jaharlal Dasgupta, father of one of the authors (JDG) for his immense support in the research work.

Figures

Figs 1–8. Carpophilus (Ecnomorphus) jahari sp. n. 1 – body, dorsal view; 2 – the same,

Figs 9–18. Carpophilus spp. 9–14 – C. (Ecnomorphus) plagiatipennis Motschulsky,