Hydaticus lateralis Laporte, 1835

Megna, Yoandri S., Balke, Michael, Apenborn, Rico & Hendrich, Lars, 2019, A review of Peruvian diving beetles of the genus Hydaticus Leach, 1817, with description of Hydaticus (Prodaticus) panguana sp. nov. and notes on other Neotropical species (Coleoptera: Dytiscidae), Zootaxa 4615 (1), pp. 113-130 : 116-117

publication ID	https://doi.org/10.11646/zootaxa.4615.1.5
publication LSID	lsid:zoobank.org:pub:2A000D68-CA54-4077-AA8C-50B4455E6A23
DOI	https://doi.org/10.5281/zenodo.4330439
persistent identifier	https://treatment.plazi.org/id/0382E754-E766-FFB4-FF22-FA8AFB6FFA94
treatment provided by	Felipe (2020-08-22 01:14:45, last updated 2024-11-27 03:33:41)
scientific name	Hydaticus lateralis Laporte, 1835
status

Treatment

Hydaticus lateralis Laporte, 1835 View in CoL

( Figs 2B View FIGURE 2 , 5 View FIGURES 4–7 , 8, 9A, 9B View FIGURE 9 )

Hydaticus lateralis Laporte, 1835: 97 View in CoL ; Aubé 1838: 189; Sharp 1882a: 780; Branden 1885: 101; Zimmermann 1920a: 221; Blackwelder 1944: 79; Trémouilles 1996: 28; Benetti & Hamada 2003: 704; Nilsson & Hájek 2019: 94.

Hydaticus amazonicus Sharp 1882a: 655 ; Sharp 1887: 758; Branden 1885: 103; synonymy by Trémouilles 1996: 28.

Type locality. French Guiana, Cayenne .

Material examined. VENEZUELA: “ Venezuela, Caripito , 4.V. & 9.VIII.1942, New York Zoo. Soc. Dept. Tropical Research”, 2 exs., ( CGW, AMNH) . GUYANA: “ Guyana, Bartica , New York Zoo. Soc. Dept. Tropical Research”, 1 ex., ( AMNH) . SURINAME: “ Surinam, Tafelberg Distr., Saramacca Camp 2, 13 km NW of air strip, 20.VI.1979, leg. M.S. Hoogmoed ”, 1 ex., ( CGW) . PERU: “ Peru, Huánuco Department, Yuyapichis , Stat. Panguana , 20.9.- 7.10.2013, - 9.616667S, - 74.9333W, Bäche, Burmeister leg.”, 1 ex., ( ZSM) GoogleMaps ; “ Peru / Amazonia Prov. Huánuco Río Yuyapichis , Panguana , VII.1982 Palmensumpf leg. E.G. Burmeister”, 1 ex., ( ZSM) ; “ Peru, Dept. Huánuco Panguana ACP, Río Yuyapichis , 230m, 9°37ʹS 74°56ʹW, 28.09.- 06.10.2000, leg. E.G. Burmeister ”, 3 exs., ( MUSM, ZSM) GoogleMaps ; “ Peru, Huánuco Department, Panguana , Yuyapichis river , 25.vii.2013, - 9.616667S, - 74.9333W, R. Apenborn leg.”, 7 exs., ( MUSM, ZSM) GoogleMaps .

Diagnosis. TL = 12.9–13.8 mm; TL-H = 12.2–13.1 mm; MW = 6.8–7.2 mm; pronotum black with lateral margins testaceous; elytron with basal fasciae not confluent with sublateral, longitudinal and yellowish stripes; elytron with sublateral stripes extended to the mid length of elytra, with a subtriangular, postmedial and broad spot ( Fig. 2B View FIGURE 2 ); protarsomere I with a series of spines across the dorsal surface; metatibia with bifid setae curved ventro-basally on posterior surface; median lobe of aedeagus with apex rounded in lateral view ( Fig. 5 View FIGURES 4–7 ).

Differential diagnosis. Hydaticus lateralis has the colour pattern of the pronotum and the elytra similar to H. devexus and H. tuyuensis , but can be distinguished from those species by the following combination of characters: elytron with transverse and subbasal yellowish fasciae, often with sublateral, longitudinal and yellowish stripe; elytron with basal and sublateral yellowish stripes not connected, and with a postmedial and broad spot.

Distribution. Prior to this study, Hydaticus lateralis had been recorded from Brazil and French Guiana only (Laporte 1835; Trémouilles 1996). Its range of distribution is now extended to Guyana, Venezuela, Suriname, and Peru ( Fig. 8).

Ecology. Trémouilles (1996) and Benetti & Hamada (2003) reported this species from lowland areas in Brazil. In Panguana, H. lateralis was collected in shaded and shallow rest pools of forest streams and temporary forest pools, packed with decaying leaves and wood ( Fig. 9A, 9B View FIGURE 9 ). Hydaticus lateralis is sympatric and sometimes syntopic with H. panguana sp. nov. and H. subfasciatus . The species is also attracted to light.

References

Aube, C. (1838) Hydrocanthares et gyriniens. In: Dejean P. F. M. A. (Ed.), Species general des coleopteres de la collection de M. le Comte Dejean. Vol. VI. Francia, Paris, 804 + xvi pp.

Benetti, C. J. & Hamada, N. (2003) Fauna de coleopteros aquaticos (Insecta: Coleoptera) na Amazonia Central, Brasil. Acta Amazonica, 33 (4), 701 - 710. https: // doi. org / 10.1590 / S 0044 - 59672003000400015

Blackwelder, R. E. (1944) Checklist of the coleopterous insects of Mexico, Central America, the West Indies, and South America. Part I. United States National Museum Bulletin, 158, i-xii + 1 - 188. https: // doi. org / 10.5479 / si. 03629236.185. i

Branden, C. van den (1885) Catalogue des coleopteres carnassiers aquatiques (Haliplidae, Amphizoidae, Pelobiidae et Dytiscidae). Annales de la Societe Entomologique de Belgique, 29 (1), 5 - 118.

Nilsson, A. N. & Hajek, J. (2019) A world catalogue of the family Dytiscidae, or the diving beetles (Coleoptera, Adephaga). Version 1. I. 2019. Distributed as a PDF file via Internet. Available from: http: // www. waterbeetles. eu (accessed 08 February 2019)

Sharp, D. (1882 a) On aquatic carnivorous Coleoptera or Dytiscidae. Scientific Transactions of the Royal Dublin Society, 2 (2), 179 - 1003. https: // doi. org / 10.5962 / bhl. title. 9530

Sharp, D. (1887) Biologia Centrali-Americana. Zoologia. Insecta. Coleoptera. Vol. 1. Part 2. Supplement. Published for the editors by R. H. Porter, London, pp. 748 - 802.

Tremouilles, E. R. (1996) Revision del genero Hydaticus Leach en America del sur, con descripcion de tres nuevas especies (Coleoptera, Dytiscidae). Physis, Buenos Aires, 52 B (122 - 123), 15 - 32. [1994]

Zimmermann, A. (1920 a) Pars 71. Dytiscidae, Haliplidae, Hygrobiidae, Amphizoidae. In: Schenkling, S. (Ed.), Coleopterorum Catalogus. Vol. IV. Junk, Berlin, 326 pp.

Figures

FIGURE 2. Dorsal habitus of H. panguana sp. nov. (A), H. lateralis (B), H. subfasciatus (C) and H. xanthomelas (D). All specimens collected in Panguana, Peru. Scale bar = 5 mm.

FIGURE 9. Habitats of H. panguana sp. nov. and H. lateralis (A), and H. subfasciatus and H. lateralis (B) in Panguana, Huànuco, Peru. Shallow and temporary forest pool with rotten leaves and wooden debris (A), and Aguajal forest pond (B).

FIGURES 4–7. Median lobe of aedeagus in dorsal (A) and lateral view (B): H. panguana sp. nov. (4), H. lateralis (5), H. subfasciatus (6), and H. xanthomelas (7). Scale bar = 1 mm.