Pareuryaptus aethiops (Tschitschérine, 1897)

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

2. Pareuryaptus aethiops (Tschitschérine, 1897)

Figs 11, 19, 27 , 34 , 82–83 , 96–97 , 106, 111 , 140 .

Tschitschérine, 1897: 264 ( Trigonotoma ; ‘Birmanie’); 1898: 36; Dubault et al., 2008: 207; Roux et al., 2016: 56.

MATERIAL. 15♂♂, 19♀♀ ( SIEE), Vietnam, Dong Nai Province, Cat Tien Nat. Park , 17., 21. and 30.V.2005, at light HQL450 (D. Fedorenko) .

Aedeagus and internal sac examined in five males; genitalia and reproductive tract examined in two females.

DIAGNOSIS. A medium-sized species. Mandibles round-ed laterally; antennal scape barely shorter than antennomeres 2 to 4 combined; sides of pronotum straight to subsinuate in front of base; base impunctate between basal foveae, basal angles obtuse or very so, blunt to rounded; posterolateral seta in or slightly anterior to the angle; median line obliterate basally. Elytral microsculpture hardly traceable, consisting of moderately to slightly transverse meshes. Internal sac of aedeagus with basal bulb hooked ( Fig. 106 ).

REDESCRIPTION. BL 13.2–16 mm. Body dorsum black, elytra with almost indistinct aeneous luster. Penultimate maxillary palpomere barely shorter than terminal one, the latter slightly less than four times as long as wide, parallel-sided or almost so, with apex rounded to truncate.

Pronotum subcordate to indistinctly so ( Figs 82–83 ), lateral bead increasingly broadened basad from narrow apically to wide basally. Lateral groove very finely to indistinctly punctate at bottom in apical half only. Basal foveae rather wide and moderately deep, outer basal sulcus very deep, inner one as impressed line, shallow anteriorly.

Elytral intervals mostly slightly convex to almost flat on disc.

Posterior inclination of prosternal process rather wide. Propleura with 0–8 coarse punctures.

Aedeagus ( Figs 96–97 , 106–111 , 140 ): almost symmetrical; internals sac at a slightly acute angle with apex of aedeagus, its distal part rather short and running parallel to aedeagus, with preapical bulb rather small, proximal vesicle imperceptible, distal one just at base of dorsal sclerite.

GEOGRAPHIC DISTRIBUTION. Myanmar, Vietnam.

HABITATS AND HABITS. No data except that adults flight to light at night.

COMMENTS. Some smaller specimens have body dorsum nearly uniform black, pronotal basal foveae narrow, and elytral intervals convex.

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 96–105. Aedeagus, median lobe with everted and inflated internal sac: 96–97 — P. aethiops; 98–99 — P. glastenvalum; 100–103 — P. cambodgiensis luangphabangensis from Phong Nha - Kebang NP (100–101) and Kon Ka Kinh NP (102–103); 104–105 — P. c. cambodgiensis; 96, 98, 100, 102, 104 — left aspect; 97, 99, 101, 103, 105 — right aspect; bp — proximal bulb; bpa — preapcal bulb; ds — dorsal sclerite; vdd — distal dorsal vesicle; vdp — proximal dorsal vesicle. Scale bars 1 mm. Рис. 96–105. Эдеагус, среднЯЯ долЯ с вывернутым и надутым внутренним мешком: 96–97 — P. aethiops; 98–99 — P. glastenvalum; 100–103 — P. cambodgiensis luangphabangensis иЗ Нац. парков Phong Nha - Kebang (100–101) и Kon Ka Kinh (102–103); 104–105 — P. c. cambodgiensis; 96, 98, 100, 102, 104 — слева; 97, 99, 101, 103, 105 — справа; bp — проксимальный пуЗырь; bpa — предвершинный пуЗырь; ds — дорЗальный склерит; vdd — дистальный дорЗальный пуЗырёк; vdp — проксимальный дорЗальный пуЗырёк. Масштаб: 1 мм.

Figs 106–115. Aedeagus, median lobe with everted and inflated internal sac: 106, 111 — Pareuryaptus aethiops; 107, 112 — P. glastenvalum; 108–109, 113–114 — P. cambodgiensis luangphabangensis from Phong Nha – Kebang NP (108, 113) and Kon Ka Kinh NP (109, 114); 110–115 — P. c. cambodgiensis; 106–110 — dorsal aspect; 111–115 — ventral aspect; bp — proximal bulb; bpa — preapcal bulb; ds — dorsal sclerite; vdd — distal dorsal vesicle; vdp — proximal dorsal vesicle. Scale bars 1 mm. Рис. 106–115. Эдеагус, среднЯЯ долЯ с вывернутым и надутым внутренним мешком: 106, 111 — Pareuryaptus aethiops; 107, 112 — P. glastenvalum; 108–109, 113–114 — P. cambodgiensis luangphabangensis иЗ Нац. парков Phong Nha - Kebang (108, 113) и Kon Ka Kinh (109, 114); 110–115 — P. c. cambodgiensis; 106–110 — сверху; 111–115 — 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.