Eulichas wewalkai Hájek, 2009

Hájek, Jiří, 2009, Revision of the genus Eulichas Jacobson, 1913 (Coleoptera: Eulichadidae) II. E. dudgeoni species group, Zootaxa 2192, pp. 1-44 : 36

publication ID	https://doi.org/ 10.5281/zenodo.189396
DOI	https://doi.org/10.5281/zenodo.6214450
persistent identifier	https://treatment.plazi.org/id/03AC7D44-D97C-7D68-FF7B-A2E0F42FC24C
treatment provided by	Plazi
scientific name	Eulichas wewalkai Hájek
status	sp. nov.

Treatment

Eulichas wewalkai Hájek , sp. nov.

( Figs. 20 View FIGURES 13 – 24 , 40 View FIGURES 25 – 44 , 60 View FIGURES 55 – 64 , 80 View FIGURES 78 – 80 )

Type locality. Nepal, 30 km NW of Pokhara, Birethanti, 1100 m.

Type material. Holotype 3 ( NHMW), labelled: “ Nepal, 30 km NW Pokhara / Birethanti 1100 m / leg. Wewalka 4.5.1984 (N3) [printed]”.

Description. Habitus elongate, fusiform. Body colouring brown. Pale part of setation consists of recumbent yellowish-grey setae forming very indistinct ocellations on pronotum and elytra ( Fig. 20 View FIGURES 13 – 24 ).

Measurements. Male: 14 mm.

Head punctation consists of sparse, irregularly distributed moderately large setigerous punctures. Antenna long, slender, last antennomere slightly club shaped, 2.63 times as long as wide ( Fig. 40 View FIGURES 25 – 44 ), its ventral side smooth.

Pronotum trapezoidal, ca. 1.76 times as wide as long. Sides almost straight in anterior half, with obtuse angle behind the middle, and prominent hind angles ( Fig. 60 View FIGURES 55 – 64 ). Pronotum with two rounded shallow depressions on the disc, and an indistinct depression also medio-basally. Punctation consists of sparse moderately coarse setigerous punctures on the disc, which become slightly coarser and denser laterally.

Elytra with numerous longitudinal rows of moderately large punctures, and very fine interstitial setigerous punctures.

Ventral part with fine punctures, which are sparse medially and become larger and denser laterally. Last abdominal ventrite laterally with indistinct sinuation before apex.

Male. Aedeagus with phallobase of the same length as parameres. Parameres simple, slender, somewhat constricted near the middle. Their subbasal hook is missing, but the subapical hook is well developed. Median lobe broadly lanceolate ( Fig. 80 View FIGURES 78 – 80 ).

Female. Unknown.

Differential diagnosis. E. wewalkai sp. nov., although of smaller size, is very similar to E. sikkimensis and E. uniformis in habitus. It can be distinguished from E. uniformis based on absence of a parameral subbasal hook, and from E. sikkimensis based on shorter last antennomere, slender parameres constricted near the middle, and broadly lanecolate median lobe.

Distribution. So far known only from the type locality in mountain area of central Nepal.

Etymology. The new species is dedicated to its collector, my colleague Günther Wewalka (Vienna, Austria), a specialist on Dytiscidae .