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

description: Mexico baliensis sp. nov.
urn:lsid:zoobank.org:act: 98D64DE9-6A33-4EBF-A7F9-26F9A7BA409E
Figs 4B, 11D, 13
Etymology
This species is named after its type locality.
Material examined
Holotype INDONESIA • ♂; “ Bali Is. Indonesia Nusa Dua, Kuta South 16-II-2013 Kiyoshi ANDO leg.”; EUMJ.
Paratypes INDONESIA • 1 ♂, 3 ♀♀, 2 ex.; same collection data as for holotype; EUMJ • 3 ex.; “ Nusa Dua, North Island 8°47′52.72″ S, 115°14′9.31″ E, Bali, INDONESIA 7–8. VIII. 2010 H. Yoshitomi leg.”; EUMJ • 1 ex.; same collection data as for preceding; NMW • 1 ex.; same collection data as for preceding; BPBM • 4 ♂♂, 4 ♀♀, 13 ex.; “ Nusa Dua, South Island 8°48′6.81″ S, 115°14′16.07″ E, Bali, INDONESIA 8. VIII. 2010 H. Yoshitomi leg.”; 1 ♀ on slide no HY 1141; EUMJ • 3 ex.; same collection data as for preceding; NMW • 3 ex.; same collection data as for preceding; BPBM.
Description
Male
BODY. Oval, slightly convex dorsally, shiny, closely covered with suberect golden setae. Coloration of body black; elytra with small, irregular silver spots consisting of erect setae.
HEAD. Finely punctate, projecting anteriorly 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 1.75–2.55 (2.06). Scutellum square.
ELYTRA. Oval, widest at base, gently tapered posteriorly; caudal third of lateral margins serrate; EL/EW 1.32–1.43 (1.38); EL/ PL 2.53–4.00 (3.25); EW/ PW 1.09–1.20 (1.14); TL/ EW 1.67–1.88 (1.81).
ABDOMEN. Sternite VII (Fig. 13A) with two pairs (inner and outer) of long and stout setae and two extra pairs of such setae, pointed at postero-lateral corners, slightly projecting on median part of caudal margin. Sternite VIII (Fig. 13B) slightly sclerotized, small, Y-shaped. Sternite IX (Fig. 13C) moderately sclerotized, slender, curved in basal part; apical plates long, truncate at apices.
AEDEAGUS (Fig. 13 D–G). Long and slender; basal piece oval, subparallel-sided; lateral lobes short and robust, with 2–3 apical setae; median lobe long and slender, subparallel-sided near base to apex, finely punctuate, pointed at apex; ventral plates long and slender, reaching about apical tenth of median lobe, mostly fused to median lobe; ML/ BL 2.26; ML/ LL 2.72.
Female
Sexual dimorphism slight. Sternite VII (Fig. 13H) similar to that of male, but one pair, not two, of extra inner setae. Urosternite (Fig. 13I) well sclerotized, Y-shaped, with long and slender apodeme. Ovipositor (Fig. 13J) well sclerotized; coxite sparsely punctuate, rather pointed at apices; apex of baculus bifid; approximate ratio of coxite and baculus (n = 1) 1.0: 6.2.
Measurements
Unsexed (n = 20): TL 1.88–2.40 (2.19) mm; PW 0.95–1.13 (1.06) mm; PL 0.40–0.60 (0.52) mm; EL 1.48–1.80 (1.67) mm; EW 1.05–1.30 (1.21) mm.
Distribution
Indonesia (Bali Island).
Remarks
This species is similar to M. borneensis sp. nov. in the shape of the aedeagus, but differs from it in the following characteristics: median lobe obtuse at apex (pointed in M. borneensis sp. nov.); and apical setae on lateral lobes relatively short (long in M. borneensis sp. nov.).
Biological notes
The type series was collected from the surface of wet rocks on a seashore (Fig. 4B) together with three species of Laius Guérin-Méneville, 1830 (Melyridae: L. baliensis Yoshitomi, 2014, L. satoi Yoshitomi, 2008 and L. pankowi Wittmer, 1999) and Parathroscinus sp. (Limnichidae) (Yoshitomi 2008, 2014b).
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 24-26, DOI: 10.5852/ejt.2019.583, http://zenodo.org/record/3564532