Pelodiaetodes prominens Moore
Creators: name: Sokolov, Igor M.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Pelodiaetodes
Pelodiaetodes prominens

description: Pelodiaetodes prominens Moore
Figs. 1 AC, 2AC, 3EI, 4, 5A, 6A, 7A–C, 8A, 9AD, 10A, 11
Examined material. Northland (19 examples, 6 exx. dissected): Waipoua S. F.; Omahuta SF; Mangamuka Summit.
Recognition. Externally adults of this species (Fig. 5 A) are indistinguishable from the adults of other congeners. Males of P. prominens may be distinguished from males of other congeners by the structure of the median lobe.
Description. Size. Medium- to large-sized for genus (SBL range 1.47–1.72 mm, mean 1.59± 0.085 mm, n=7).
Habitus. Body form subdepressed, subparallel, markedly elongate (WE/SBL 0.38±0.009), head large for genus compared to pronotum (WH/WPm 0.79±0.013), pronotum narrow in comparison to elytra (WPm/WE 0.75±0.020).
Color. Body color brunneorufous, appendages testaceous.
Prothorax. Pronotum (Fig. 1 C, 6A) moderately long (LP/LE 0.46±0.022) and moderately elongate (WPm/LP 1.17±0.031), with lateral margins shallowly sinuate and markedly constricted posteriorly (WPm/WPp 1.52±0.037). Anterior angles prominent, posterior angles slightly obtuse (110–120°). Width between anterior angles much greater than between posterior angles (WPa/WPp 1.24±0.034).
Elytra (Fig. 2 C). Moderately depressed along suture, comparatively short (LE/SBL 0.53±0.020) and moderately wide (WE/LE 0.72±0.036), without traces of striae. Humeri distinct, rounded, in outline forming obtuse angle with longitudinal axis of body. Lateral margins subparallel, slightly divergent at basal half, evenly rounded to apex in apical half.
Male genitalia. Median lobe (Fig. 7 A) with long shaft, arcuate ventral margin and elongate apex with acuminated tip. Sclerites of internal sac remote from each other, the dorsal sclerite bifurcated apically, similar in size to ventral sclerite. Left paramere with short and conical apical constriction (Fig. 7 B). Ring sclerite with short, slightly asymmetrical handle, moderately rounded at tip (Fig. 8 A).
Female internal genitalia. Gonocoxite 2 with prominent medial basal ridge and long ensiform setae (Fig. 9 A, D). Spermatheca weakly sclerotized, elongate, of barrel shape, with slightly enlarged basal half (Fig. 10 A). Length of spermathecal gland much greater than length of spermatheca. Spermathecal duct slightly wavy and very long.
Geographical distribution. As far as known this species inhabits areas, surrounding the Hokianga Harbour, in the western part of Northland (Fig. 11, red circles).
Way of life. This species has been collected by sifting forest litter and mosses from tree bases and ground.
Relationships. Males of this new species resemble males of P. aldermensis, described above, based on the tapering apex of the median lobe, but differ in the shape of the apical tip and larger size of the dorsal sclerite of the internal sac of the median lobe.
description: Published as part of Sokolov, Igor M., 2015, Review of the species of Pelodiaetodes Moore (Coleoptera: Carabidae: Bembidiini: Anillina) of New Zealand, pp. 561-582 in Zootaxa 3963 (4) on pages 576-577, DOI: 10.11646/zootaxa.3963.4.4, http://zenodo.org/record/235706