Mexico palauensis Yoshitomi 2019, sp. nov.
Creators: name: Yoshitomi, Hiroyuki
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Limnichidae
Mexico
Mexico palauensis

description: Mexico palauensis sp. nov.
urn:lsid:zoobank.org:act: 9A734C2D-BF7A-4F05-8628-36655720A091
Figs 11E, 15
Etymology
This species is named after its type locality.
Material examined
Holotype PALAU • ♂; “ Carp Is. Palau 13–15. IX. 2002 M. Sato leg.”; EUMJ.
Paratypes PALAU • 49 ex.; same collection data as for holotype; EUMJ • 4 ex.; same collection data as for preceding; NMW • 4 ex.; same collection data as for preceding; BPBM • 1 ♀, 2 ex.; “ Carp Is. Palau 20-VII-2003 K. Takahashi leg.”; EUMJ • 1 ♂, 4 ex.; “ Palau Angaur Is. 16-VIII-2003, M. Sato leg.”; EUMJ • 1 ♂, 6 ex.; “ Palau Peleliu Is. 13–17. VIII. 2003 M. Sato leg.”; 1 ♂ on slide no. HY 1038; EUMJ.
Description
Male
BODY. Oval, slightly convex dorsally, shiny, closely covered with suberect golden setae. Coloration of body black; elytral silver spots indistinct.
HEAD. Finely punctate, slightly convex on dorsum between eyes; distance between eyes about 0.8 times as long as eye diameter in dorsal view.
ANTENNAE. Very short, reaching about anterior quarter of pronotum. PRONOTUM. Closely punctate, gently arcuate on lateral margins; PW/ PL 1.96–2.80 (2.22). Scutellum small, square.
ELYTRA. Oval, widest at base, gently tapered posteriorly; caudal third of lateral margins slightly and indistinctly serrate; EL/EW 0.42–1.43 (1.30); EL/ PL 1.13–4.13 (3.14); EW/ PW 1.05–1.16 (1.09); TL/ EW 0.79–1.87 (1.72).
ABDOMEN. Sternite VII (Fig. 15A) with two pairs of long and stout extra setae, bearing about 50 long setae, obtuse at postero-lateral corners, pentagonally projecting in median part of caudal margin. Sternite VIII (Fig. 15B) slightly sclerotized, small, Y-shaped. Sternite IX (Fig. 15C) well sclerotized, curved in basal part; apical plates long, pointed at apices.
AEDEAGUS (Fig. 15 D–G). Long and slender, almost symmetrical; basal piece oval, gently tapering basally; lateral lobes relatively long and slender, with 2–3 very short apical setae, sparsely punctuate; median lobe long, subparallel-sided near base to apical fifth, sparsely punctuate, pointed at apex; ventral plates long and slender, reaching about apical fifth of median lobe, mostly fused to median lobe; ML/ BL 2.06; ML/LL 1.92.
Female
Sexual dimorphism slight. Sternite VII (Fig. 15H) similar to that of male. Urosternite (Fig. 15I) well sclerotized, with long and slender apodeme, with slender lateral projections. Ovipositor (Fig. 15J) well sclerotized; coxite punctuate, obtuse at apices; apex of baculus pointed; approximate ratio of coxite and baculus (n = 1) 1.0:6.8.
Measurements
Unsexed (n = 20): TL 0.85–2.23 (1.93) mm; PW 0.82–1.12 (1.03) mm; PL 0.35–0.55 (0.47) mm; EL 0.45–1.68 (1.46) mm; EW 0.95–1.20 (1.12) mm.
Distribution
Palau (Carp, Peleliu Islands).
Remarks
This species is similar to M. borneensis sp. nov. in the shape of the aedeagus, but differs from it in the following characteristics: ventral plates separated from median lobe (attached in M. borneensis sp. nov.) and apical setae on lateral lobes short (long in M. borneensis sp. nov.).
description: Published as part of Yoshitomi, Hiroyuki, 2019, Review of the Asian Thaumastodinae (Coleoptera, Byrrhoidea, Limnichidae), with a phylogeny of the genera, pp. 1-45 in European Journal of Taxonomy 583 on pages 28-30, DOI: 10.5852/ejt.2019.583, http://zenodo.org/record/3564532