Nanosaphes punctatus, Giron, Jennifer C. & Short, Andrew Edward Z., 2018

Giron, Jennifer C. & Short, Andrew Edward Z., 2018, Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae), ZooKeys 768, pp. 113-158 : 143-144

publication ID	https://dx.doi.org/10.3897/zookeys.768.24423
publication LSID	lsid:zoobank.org:pub:399BCC3E-9D6F-4231-870E-05C79B9FD4B0
persistent identifier	https://treatment.plazi.org/id/59E30D06-ADB4-4C39-8AE4-4ED03ED8F58F
taxon LSID	lsid:zoobank.org:act:59E30D06-ADB4-4C39-8AE4-4ED03ED8F58F
treatment provided by	ZooKeys by Pensoft (2018-06-20 04:26:15)
scientific name	Nanosaphes punctatus
status	sp. n.

Treatment

Nanosaphes punctatus sp. n. Figs 15 E–H; 17D; 18D; 19; 20B

Type material examined.

Holotype (male): "SURINAME: Sipaliwini District/ 04°56.871'N, 55°10.911'W, 462 m/ Brownsberg Nature Park, forested/ stream with lots of detritus; leg./ Short, Maier, McIntosh; 4.viii.2012/ SR12-0804-01A" ( NZCS). Paratypes: (40): GUYANA: Region XII: " 5°0.730'N, 59°38.965'W, 585 m/ Upper Potaro Camp I (c. 7 km/ NW Chenapau), Ridge Trail/ leg. Short, Baca, Salisbury/ 11.iii.2014/ GY14-0311-02A" (32, SEMC, CBDG); " 5°10.514'N, 59°28.970'W, 440 m/ Kaieteur National Park, trail by guest-/ house; forest pools; leg. Short/ Salisbury, La Cruz; 21.iii.2014/ GY14-0321-01B" (1, SEMC). SURINAME: Sipaliwini District: same data as holotype (6, SEMC, including DNA vouchers SLE 507 and 508); " 3°55'36.0012", -56°11'17.9952", 600 m/ Central Suriname Nature Reserve: Tafelberg Summit, nr. Augustus Creek Camp; 17.viii.2013; leg. Short & Bloom; SR13-0817-01A" (1, SEMC, DNA voucher SLE 1069).

Differential diagnosis.

Nanosaphes punctatus is readily recognized among its congeners by its coarse elytral ground punctation (as opposed to shallowly punctate) (see Fig. 15E, F). In addition, the dorsal outline in lateral view is more convex in comparison.

Description.

Body length 1.2-1.4 mm, width 0.7-0.9 mm. Body elongate oval, moderately convex, uniformly brown throughout (see Fig. 15 E–H). Dorsal surface coarsely punctate. Posterior elevation of mesoventrite flat. Pubescence of ventral surface scanty. Aedeagus (Fig. 18D) with basal piece 0.4-times the length of parameres; parameres nearly as long as median lobe, with round apex; gonopore situated near apex of median lobe.

Etymology.

Named in reference to the relative coarseness of the dorsal punctation of the species, with the Latin word puncta meaning puncture.

Distribution.

Guyana, Suriname. Elevation range 440-585 m. See Fig. 19.

Biology.

This species was collected in small forested streams and pools with abundant detritus (Fig. 20B).