Pselaphogenius kalleri, Owens & Carlton, 2022

Owens, Brittany E. & Carlton, Christopher E., 2022, --- Revision- -- of- -- the- -- New- -- Zealand- -- species- -- of- -- the- -- Genus- -- Pselaphogenius Reitter- -- (Staphylinidae: --- Pselaphinae: --- Pselaphitae: --- Pselaphini) ---, Zootaxa 5155 (2), pp. 187-220 : 217-218

Pselaphogenius kalleri ­­­Owens­­­&­­­Carlton,­­­sp.­­­nov.

(Figs. 5f, 23a–c)

Type­­­Material.­­­ Holotype:­­­(1­­­male)­­­ New Zealand: NN: Mt. Starveall , 1066 m, moss 29 Dec 1964, G Kuschel, JI Townsend, 65/165 ( NZAC) . Paratypes:­­­(5­­­males)­­­ holotype locality ( NZAC); (1­­­male,­­­1­­­female)­­­ New Zealand: NN: Lake Roititi , moss 27 Jul 1965 AK Walker, 65/402 ( NZAC) .

Etymology.­­­ This species is named in honor of Dr. Mike Kaller, for his support of this project as member of the first author’s advisory committee.

Diagnosis.­­­ Externally, P. kalleri is most similar to P. lescheni in possessing a median tubercle on the apex of the median ovate depression on ventrite II. The form of the aedeagus, with the median lobe elongate and simple, a ventral fleshy process, and the absence of a ventral process is unique.

Redescription.­­­ MALE. ­­­Integument: head, pronotum, elytra, abdomen, and appendages light brown, palpi lighter in color. Head:­­­ width between eyes equal to ½ length of head from base of vertex to apex of rostrum. Eyes rounded, composed of 15 facets. Frontal margin of rostrum rounded in dorsal view. Gular mound modified, as wide as long, broad anteriorly and rounded posteriorly; area of head posterior to gular mound flattened, slightly concave, bearing dense setae. Maxillary palpomere IV shorter than head, narrow, widened at base and distal 1/3, v-shaped sensory patches present. Thorax:­­­ pronotum basal sulcus absent, lateral antebasal foveae and median antebasal fovea reduced. Mesoventrite with median shield unmodified. Metaventrite afoveate, median flattened area declined posteriorly, margins thickened, metacoxae separated by extension of ventrite I. Legs unmodified. Elytra with single basal foveae and single sutural fovea present; discal stria present, short, sutural striae present. Abdomen:­­­ tergites of usual form for tribe. Ventrite I covered in dense, shining setae; ventrite II with basal sulcus occupying length of ventrite, sulcus densely setose, deep longitudinal median sulcus reaching apex of ventrite, apex of ventrite with small median projection. Genitalia: aedeagus symmetrical. Ventral fleshy lobe extending beyond phallobase. Median lobe simple and narrow. Two thin lateral processes also extending from fleshy lobe. Ventral process absent. Parameres as long as median lobe.

Females.­­­Integument,­­­Head,­­­Thorax,­­­Abdomen:­­­ Females are similar to males except eyes slightly smaller and ventrite II lacking median ovate depression.

Distribution.­­­ This species is known from several localities in Nelson (NN): Maungatapu Saddle, Mt. Starveall, Dun Mt. Mt. Arthur, Lake Sylvester, and St. Arnaud Range.

Material­­­Examined.­­­(1­­­male,­­­3­­­females)­­­ New Zealand: NN: Maungatapu Sdle , 732 m Litter, 15 Nov 1967 JI Townsend, 67/83 ( LSAM); (1­­­male) ­­­ New Zealand: NN: Dun Mt. Wooded Peak E. Summit, litter, 71/116 14 Sep 1971, GW Ramsay ( LSAM); (1­­­male,­­­1­­­female) ­­­ New Zealand: NN: Mt. Arthur , 1158 m Moss, 3 Nov 1969 JI Townsend, 69/215 ( LSAM); (1­­­male,­­­1­­­female) ­­­ New Zealand: NN: L. Sylvester, 1402 m Mats , 29 Oct 1969 JS dugdale, 69/182 ( LSAM) ; ­­­(1­­­male,­­­1­­­female)­­­ New Zealand: NN: Lake Roititi , moss 27 Jul 1965 AK Walker, 65/402 ( LSAM); (1­­­male,­­­1­­­female) ­­­ New Zealand: NN: St. Arnaud Ra. Moss , 23 Dec 1964 G Kuschel, 64/182 ( LSAM) .