Stenaptinus dissolutus (Andrewes, 1923)

Fedorenko, D. N., 2020, Stenaptinus (Coleoptera: Carabidae: Brachininae) of Vietnam. Note 1, Russian Entomological Journal 29 (4), pp. 361-376 : 369

publication ID

https://doi.org/ 10.15298/rusentj.29.4.03

persistent identifier

https://treatment.plazi.org/id/03B43428-165E-FF83-397C-A7444712F75D

treatment provided by

Felipe

scientific name

Stenaptinus dissolutus
status

 

The dissolutus species group.

DIAGNOSIS. As for the previous species group except as follows: Aedeagus apex mostly triangular, slightly asymmetric, long to short, pointed to blunt ( Figs 54–61, 64–65, 68–69 View Figs 54—69 ). In female, tergite VII with 10–17 apical setae, sternite VIII densely pubescent, desclerotized just in front of apical setae; tergite VIII on each side of median line with psm transverse and slightly narrower laterally, adr long, about a third as long as the tergite along midline, densely setulose and minutely tuberculate ( Figs 1–2, 4–5, 7–8, 10–11, 16–17, 19–20, 22–23, 25–26 View Figs 1—15 View Figs 16—30 ; tubercles visible in dry specimens only!). Urite IX as in Figs 31, 34–35, 37–38, 40–41, 43 View Figs 31—45 . Receptacle Y-shaped, with horns well to almost indistinctly separated ( Figs 48, 50–52 View Figs 46—53 ).

GEOGRAPHIC DISTRIBUTION. Northern Indochina, including Vietnam south to Ha Tinh Province ( Fig. 79 View Fig ), northern Laos, northern Thailand,and southern Chinese provinces:Hubei, Sichuan, Chongqing, Yunnan, Guanxi, Fujian, Jiangxi.

While the agults are constantly apterous and occur in highlands, many species of the group are known to be widespread.

HABITATS AND HABITS. The species of the group dwell in montane tropical rainforests at 1000–1700 m altitudes and some of them (e.g., S. dissolutus ) occur also at lower heights of 400–1350 m. Three species, S. tamdaoensis , S. glabricollis sp.n., and S. guanxiensis Kischenhofer, 2010 , have been found to be sympatric in at least two localities, the environs of Sa Pa (Lao Cai Province) and the Phia Oac Mt. (Cao Bang Province). In the latter locality, S. tamdaoensis has been found to be frequent at 1600–1760 m altitudes, while sharing a habitat at 1600 m altitude with S. glabricollis sp.n. and another habitat at 1760 m altitude with S. guanxiensis . This latter is a high-montane species occurring at 1760–1860 m elevations.

COMMENTS. This group includes eight described species. All of them are very similar in appearance, for which reason at least some may have been confused. Accordingly, certain faunal records, species ranges, and validity of some species need clarification.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Carabidae

Genus

Stenaptinus

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