Suphisellus varians ( Sharp, 1882 )

Scheers, Kevin & Thomaes, Arno, 2014, A review of the Burrowing Water Beetles of Belize with a key to the species (Coleoptera: Noteridae), Belgian Journal of Entomology 51, pp. 1-17 : 1-17

Suphisellus varians ( Sharp, 1882)

( Figs 1H , 2G , 3H )

= Canthydrus varians Sharp, 1882

TYPE LOCALITY. Guatemala, Escuintla district, Paso Antonio .

MATERIAL EXAMINED. no material examined

Published records from Belize: Cayo District ( YOUNG, 1979)

DIAGNOSIS. TL = 2.3–2.6 mm; head and pronotum yellowish brown, pronotum with a darker area near anterior margin; elytra dark brown to piceous with a yellowish elongate humeral stripe, a long elongate mark on the disc and another one behind the middle near the suture ( Fig. 1H ); male genitalia with apex of aedeagus narrowed ( Fig. 2G ). Externally similar to S. neglectus but with the yellow markings forming stripes and being more prominent and the differences in the male genitalia.

DISTRIBUTION. (NT) Belize, Guatemala, Nicaragua.

HABITAT. This species was not encountered during our field survey and its habitat preferences are unknown.

NOTE. Although we did not study the specimen mentioned by YOUNG (1979), we are confident that the identification by F.N. Young is correct.

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Figures

Fig. 1. Dorsal view of the species of Noteridae in Belize. A, Hydrocanthus debilis Sharp, 1882; B, Hydrocanthus marmoratus Sharp, 1882; C, Mesonoterus laevicollis Sharp, 1882; D, Suphisellus insularis (Sharp, 1882); E, Suphisellus lineatus (Horn, 1871); F, Suphisellus neglectus Young, 1979; G, Suphisellus nigrinus (Aubé, 1838); H, Suphisellus varians (Sharp, 1882); I, Notomicrus sharpi J. Balfour-Browne, 1939.

Fig. 2. Left lateral view of the aedeagus. A, Hydrocanthus debilis Sharp, 1882; B, Hydrocanthus marmoratus Sharp, 1882; C, Suphisellus insularis (Sharp, 1882); D, Suphisellus lineatus (Horn, 1871); E, Suphisellus neglectus Young, 1979; F, Suphisellus nigrinus (Aubé, 1838); G, Suphisellus varians (Sharp, 1882); H, Notomicrus sharpi J. Balfour-Browne, 1939.

Fig. 3. Distribution maps of the species of Noteridae in Belize. A, Hydrocanthus debilis Sharp, 1882; B, Hydrocanthus marmoratus Sharp, 1882; C, Mesonoterus laevicollis Sharp, 1882; D, Suphisellus insularis (Sharp, 1882); E, Suphisellus lineatus (Horn, 1871); F, Suphisellus neglectus Young, 1979; G, Suphisellus nigrinus (Aubé, 1838); H, Suphisellus varians (Sharp, 1882); I, Notomicrus sharpi J. Balfour-Browne, 1939 (white dots indicate sampled sites and black dots indicate sites where the species is recorded, elevation map as background in which dark shading increases with height).