Pareuryaptus parvus Dubault, Lassalle et Roux, 2008

Fedorenko, D. N., 2024, Notes on Trigonotoma and Pareuryaptus (Coleoptera: Carabidae: Pterostichini) from Vietnam, Russian Entomological Journal 33 (1), pp. 43-71 : 59-62

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 .

Figures

Figs 7–30. Pregenital abdominal segments in females of Trigonotoma and Pareuryaptus: 7, 15, 23 — T. nitidicollis; 8, 16, 24 — T. aurifera; 9, 17, 25 — T. chrysites; 10, 18, 26 — T. lewisii; 11, 19, 27 — P. aethiops; 12, 20, 28 — P. parvus; 13, 21, 29 — P. morosus (= adoxus); 14, 22, 30 — P. chalceolus; 7–14 — tergite VII; 15–22 — tergite VIII; 23–30 — sternite VIII. Scale bars 1 mm. Рис. 7–30. Прегенитальные сегменты брюшка самок Trigonotoma и Pareuryaptus: 7, 15, 23 — T. nitidicollis; 8, 16, 24 — T. aurifera; 9, 17, 25 — T. chrysites; 10, 18, 26 — T. lewisii; 11, 19, 27 — P. aethiops; 12, 20, 28 — P. parvus; 13, 21, 29 — P. morosus (= adoxus); 14, 22, 30 — P. chalceolus; 7–14 — тергит VII; 15–22 — тергит VIII; 23–30 — стернит VIII. Масштаб: 1 мм.

Figs 31–38. Tergite IX and reproductive tract in females of Trigonotoma and Pareuryaptus: 31 — T. nitidicollis; 32 — P. parvus; 33 — P. morosus (= adoxus); 34 — P. aethiops; 35 — P. chalceolus; 36 — T. lewisii; 37 — T. chrysites; 38 — T. aurifera; bc — bursa copulatrix; ov — common oviduct; rp — receptacle; sc — seminal canal; sg — spermathecal gland; sgd — spermathecal gland duct; sp — spermatheca. Scale bars 1 mm. Рис. 31–38. Тергит IX и репродуктивный тракт самок Trigonotoma и Pareuryaptus: 31 — T. nitidicollis; 32 — P. parvus; 33 — P. morosus (= adoxus); 34 — P. aethiops; 35 — P. chalceolus; 36 — T. lewisii; 37 — T.chrysites; 38 — T. aurifera; bc — копулЯтивнаЯ сумка; ov — непарный Яйцевод; rp — семеприемник; sc — семепровод; sg — желеЗа сперматеки; sgd — проток желеЗы сперматеки; sp — сперматека. Масштаб: 1 мм.

Figs 81–92. Pronotum: 81 — Pareuryaptus exiguus from Mai Chau; 82–83 — P. aethiops; 84–86 — P. glastenvalum from Pai, Thailand; 87 — P. c. cambodgiensis; 88 — P. c. luangphabangensis from Phong Nha - Kebang NP; 89 — P. parvus; 90 — P. morosus (= adoxus); 91 — P. morosus; 92 — P. chalceolus from Bat Dai Son NP; 82–83, 87, 89–91 — specimens from Cat Tien NP. Рис. 81–92. Переднеспинка: 81 — Pareuryaptus exiguus иЗ Mai Chau; 82–83 — P. aethiops; 84–86 — P. glastenvalum иЗ Pai, Таиланд; 87 — P.c. cambodgiensis; 88 — P. c. luangphabangensis иЗ Нац. парка Phong Nha - Kebang; 89 — P.parvus; 90 — P.morosus (= adoxus); 91 — P. morosus; 92 — P. chalceolus иЗ Нац. парка Bat Dai Son; 82–83, 87, 89–91 — ЭкЗ. иЗ Нац. парка Cat Tien.

Figs 116–125. Aedeagus, median lobe with everted and inflated internal sac: 116–117 — Pareuryaptus chalceolus from Bat Dai Son NP; 118–123 — P. morosus from Cat Tien NP (118–121) and Thailand (122–123); 124–125 — P. parvus; 116, 118, 120, 122, 124 — left aspect; 117, 119, 121, 123, 125 — right aspect; bp — proximal bulb; bpa — preapcal bulb; ds — dorsal sclerite; vdd — distal dorsal vesicle; vdp — proximal dorsal vesicle. Scale bars 1 mm. Рис. 116–125. Эдеагус, среднЯЯ долЯ с вывернутым и надутым внутренним мешком: 116–117 — Pareuryaptus chalceolus иЗ иЗ Нац. парка Bat Dai Son; 118–123 — P. morosus иЗ Нац. парка Cat Tien (118–121) и Таиланда (122–123); 124–125 — P. parvus; 116, 118, 120, 122, 124 — слева; 117, 119, 121, 123, 125 — справа; bp — проксимальный пуЗырь; bpa — предвершинный пуЗырь; ds — дорЗальный склерит; vdd — дистальный дорЗальный пуЗырёк; vdp — проксимальный дорЗальный пуЗырёк. Масштаб: 1 мм.

Figs 126–137. Aedeagus, median lobe with everted and inflated internal sac: 126, 132 — Pareuryaptus chalceolus from Bat Dai Son NP; 127– 130, 133–136 — P. morosus from Thailand (127–128, 133–134) and Cat Tien NP (129–130, 135–136); 131, 137 — P. parvus; 126–134 — dorsal aspect; 132–137 — ventral aspect; bp — proximal bulb; bpa — preapcal bulb; ds — dorsal sclerite; vdd — distal dorsal vesicle; vdp — proximal dorsal vesicle. Scale bars 1 mm. Рис. 126–137. Эдеагус, среднЯЯ долЯ с вывернутым и надутым внутренним мешком: 126, 132 — Pareuryaptus chalceolus иЗ Нац. парка Bat Dai Son; 127–130, 133–136 — P. morosus иЗ Таиланда (127–128, 133–134) и Нац. парка Cat Tien (129–130, 135–136); 131, 137 — P. parvus; 126–134 — сверху; 132–137 — сниЗу; bp — проксимальный пуЗырь; bpa — предвершинный пуЗырь; ds — дорЗальный склерит; vdd — дистальный дорЗальный пуЗырёк; vdp — проксимальный дорЗальный пуЗырёк. Масштаб: 1 мм.

Figs 138–147. Right paramere, left aspect: 138 — Pareuryaptus c. cambodgiensis; 139 — P. c. luangphabangensis; 140 — P. aethiops; 141 — P. glastenvalum; 142 — P. parvus; 143 — P. chalceolus; 144–147 — P. morosus from Thailand (144 — La Lu NP; 145 — Tha Plan NP) и Cat Tien NP (146–147). Scale bar 1 mm. Рис. 138–147. ПраваЯ парамера слева: 138 — Pareuryaptus c. cambodgiensis; 139 — P. c. luangphabangensis; 140 — P. aethiops; 141 — P. glastenvalum; 142 — P. parvus; 143 — P. chalceolus; 144–147 — P. morosus иЗ Таиланда (144 — Нац. парк La Lu; 145 — Нац. парк Tha Plan) и Нац. парка Cat Tien (146–147). Масштаб: 1 мм.