Pareuryaptus parvus Dubault, Lassalle et Roux 2008
Creators: name: Fedorenko, D. N.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Pareuryaptus
Pareuryaptus parvus

description: 4. Pareuryaptus parvus Dubault, Lassalle et Roux, 2008
Figs 12, 20, 28, 32, 89, 124–125, 131, 137, 142.
Dubault et al., 2008: 204 (‘Djiring Annam’ [= Di Linh, Lam Dong Prov.]); Roux et al., 2016: 60.
MATERIAL. 2♀♀ (SIEE), Vietnam, Dong Nai Province, CatTienNat. Park, 24.V.2006 (S.Golovatch); 5♂♂, 6♀♀ (SIEE), same data except various dates between 17.V. and 5.VI.2005, at light HQL 450 (D. Fedorenko); 2♀♀ (SIEE), Binh Phuoc Province, Bu Gia Map Nat. Park, 12°11′37″N, 107°12′21″E, h= 350– 540 m, 12–23.IV.2009 (D. Fedorenko); 2♀♀ (SIEE), Dak Lak Province, Chu Yang Sin Natn. Park, 12°25′25″N, 108°21′53″E, Krong Kmar River, upper flow, h= 970 m, 15–30.V.2014 (D. Fedorenko); ♀ (SIEE), Gia Lai Province, ~ 40 km NEE of Pleiku, 14°12′11″N, 108°15′54″E, Kon Ka Kinh Natn. Park, h= 890 m, 9–22.V.2016 (D. Fedorenko).
Aedeagus and internal sac examined in three or one male, respectively;genitalia and reproductive tract examined in two females.
DIAGNOSIS. Rather a small species. Mandibles triangular and rounded at outer margins; antennal scape barely shorter than antennomeres 2 to 4 combined; sides of pronotum straight or rounded in front of base; base impunctate between basal foveae, basal angles very obtuse and blunt, with seta in or slightly anterior to the angle; median line reaching base. Elytral microsculpture consisting of narrow transverse meshes. Internal sac of aedeagus with basal bulb bifid (Fig. 131).
REDESCRIPTION. BL 11–12.4 mm. Body dorsum black. Penultimate maxillary palpomere 2/3–3/5 as long as terminal one, the latter 3–4 times as long as wide, subparallel-sided, barely narrower at apex than at middle.
Pronotum (Fig. 89): lateral bead fairly thick, increasingly broadened basad, wide basally. Lateral groove and basal foveae finely, densely to confluently punctate, with punctures traceable just inside the groove, extended onto basal dilations of lateral bead, sparse or missing just in front of basal foveae. Basal sulci confluent into a very deep basal fovea, diverging anteriorly, with inner sulcus obliterate or reduced to 1–3 proximate punctures.
Elytral intervals convex.
Posterior inclination of prosternal process rather wide. Propleura with 0–9 coarse punctures.
Aedeagus (Figs 124–125, 131–137, 142): almost symmetrical; internals sac at a slightly acute angle with apex of aedeagus; two vesicles, proximal and especially distal, on each side of dorsal sclerite both large, the former sclerotized, the latter just at base of the sclerite.
GEOGRAPHIC DISTRIBUTION. Southern and Central Vietnam: Binh Phuoc, Dong Nai, Lam Dong, Dak Lak and Gia Lai provinces.
HABITATS AND HABITS. No data except that adults flight to light at night.
COMMENTS. Maxillary palpomeres 3 and 4 vary between populations of this species in shape and proportions (Tab. 4). The specimens from the northern populations (Chu Yang Sin NP, Kon Ka Kinh NP) are hardly more different from the southern ones (Cat Tien NP, Bu Gia Map NP) than these latter from P. curtulus (mp4L/W 4.8). Because P. parvus and P. curtulus otherwise are very similar, the latter name is not unlikely to cover large-sized specimens of P. parvus.
description: Published as part of Fedorenko, D. N., 2024, Notes on Trigonotoma and Pareuryaptus (Coleoptera: Carabidae: Pterostichini) from Vietnam, pp. 43-71 in Russian Entomological Journal 33 (1) on pages 59-62, DOI: 10.15298/rusentj.33.1.05, http://zenodo.org/record/14162968