Hemipeplus enarotaliensis KC & Pollock, 2025

Kc, Sajan & Pollock, Darren A., 2025, Review of the Hemipeplinae (Coleoptera: Mycteridae) fauna of the world with descriptions of twenty-nine new species, Zootaxa 5574 (1), pp. 1-140 : 111-113

Hemipeplus enarotaliensis KC & Pollock , sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:F9013BA5-38E8-4062-821A-2AA7B4FDBDB1

(Figs 51, 64)

Type Material. Holotype, male, labeled: ‘ Enarotali / J. &M. Sedlacek Collectors BISHOP / [light green label] BPBM / [green label] ♂ / [red label] HOLOTYPE ♂ Hemipeplus enarotaliensis KC & Pollock’, in BPBM . Allotype, female, labeled: ‘ NEW GUINEA: ( NW) Wisselmeren Enarotadi [Enarotali] 1800-1900m, 1–6[corrected with an ink].VIII.’62 / J. Sedlacek Collector BISHOP’, in BPBM. Six paratypes: 4 specimens, sex unknown, labeled same as allotype; 1 specimen, male, labeled: ‘ NEW GUINEA: ( NW) Wisselmeren Enarotadi [Enarotali] 1800–1900m, 1- 9.VIII.’62, J. Sedlacek Collector BISHOP’, in BPBM; 1 specimen, sex unknown, labeled: ‘ NEW GUINEA: ( NW) Wisselmeren Enarotadi [Enarotali] 1850m, 5–9.VIII.1962, J.M. Sedlacek Collector BISHOP’, in BPBM .

Derivation of Specific Epithet. The specific name (adjective in the nominative case, in gender agreement with substantive) is given in allusion to the species’ type locality, i.e., Enarotali , Indonesia .

Diagnosis. Hemipeplus enarotaliensis sp. nov. can be distinguished from the similar-appearing H. nuciferae (Fig. 52) by its less emarginate anterior pronotal margin and rufous color. Hemipeplus enarotaliensis sp. nov. has the following diagnostic features: temples short and rounded; scape submoniliform, apically dilated; eyes large (longer than scape + pedicel), moderately wide and moderately convex; pronotum subcordiform; anterior emargination indistinct; anterior half much wider than posterior half; pronotal pad narrow, distinct; pronotal angles rounded; pronotal lobe truncate without median notch; body long; elytra slightly convex; color dull, rufous head and pronotum with rufous to rufotestaceous elytra; distribution: Indonesia (Enarotali).

Description. Measurements (in mm)—GHW: 0.58–0.65; HL: 0.50–0.58; AL: 0.97–1.00; GPW: 0.55–0.65; PL: 0.50–0.58, GEW: 0.70–0.83; EL: 2.85–3.31; TL: 3.85–4.47.

Head (Fig. 51B) wide (GHW/HL: 1.12–1.16); eyes large (longer than scape + pedicel), moderately wide and moderately convex; temples short and rounded; occiput with raised areas; antennae slightly shorter than head and pronotum length combined; antennal scape submoniliform, apically dilated; pedicel small moniliform; antennomere III more elongate and apically dilated; IV shorter and moniliform, apically dilated; V–VI larger, apically dilated; VII–X subtriangular or bowl shaped, each wider than the next; XI subpyriform with apex narrowed after the notch;

FIGURE 51. Hemipeplus enarotaliensis sp. nov. (Holotype). A. Dorsal habitus (with scale bar); B. Dorsal head and prothorax; C. Lateral view of head and prothorax; D. Male genitalia dorsal view with spiculum gastrale; E. Tegmen dorsal view (with scale bar); F. Tegmen lateral view with one paramere removed.

lateral mandibular tooth absent. Pronotum (Fig. 51B) wide (GPW/PL: 1.10–1.12); anterior margin with indistinct emargination; anterolateral angles rounded,produced; lateral margins sinuate; posterior half contracted; posterolateral angles obtuse, rounded, not produced; pronotal lobe truncate without median notch; pronotal pad (Fig. 51C) distinct but narrow; pronotal pits moderately deep with moderate grooves. Scutellar shield elliptical, transverse, about twice as wide as long. Elytra (Fig. 51A) long (EL/GEW: 3.99–4.07), slightly convex; vestiture short and dense; apical patch long and slightly darker than the elytra. Ventral surface. Prosternal process short, not extending posterior of procoxae; hypomeral edges fused to very narrowly separated; mesosternal process narrow and linear. Color dull, rufous head and pronotum with rufous to rufotestaceous elytra; ventrally uniformly rufous to rufopiceous.

Male Genitalia (Figs 51D–F). (Tegmen length = 0.33 mm (n = 1)) Lobe of basale short and pointed; shoulders about round and smooth, moderately slanted; apicale and basale with distinct suture; parameres arcuate with tips blunt, as if cut; penis longer than tegmen.

Remarks. The male genitalia of H. enarotaliensis sp. nov. resemble those of Australian species, suggesting possible common ancestry.

Geographical Distribution (Fig. 64). Indonesia (Enarotali).