Scirtes devoensis, Ruta & Kiałka, 2021

Ruta, Rafał & Kiałka, Agata, 2021, The genus Scirtes Illiger of Fiji (Coleoptera: Scirtoidea: Scirtidae), Zootaxa 4926 (4), pp. 501-520 : 508-510

publication ID

https://doi.org/ 10.11646/zootaxa.4926.4.2

publication LSID

lsid:zoobank.org:pub:4CCDB7A9-23F6-4A08-B1D0-0C9131608A9B

DOI

https://doi.org/10.5281/zenodo.4546151

persistent identifier

https://treatment.plazi.org/id/196C87E6-FFEC-306A-D5CC-7C17BBCF0F4D

treatment provided by

Plazi

scientific name

Scirtes devoensis
status

sp. nov.

Scirtes devoensis sp. nov.

( Figs 1D View FIGURE 1 , 6 View FIGURE 6 A–B)

Type material. Holotype, male ( BPBM): “ FIJI: Taveuni , Cakaudrove Prov. , / 5.6km SE Tavuki Village, Devo / Peak, 1187m.[-16.843, -179.955], / 24.X.2002 – 31.X.2002, Malaise: M01 / E.I. Schlinger. M. Tokotaa. FBA201203” GoogleMaps . Paratype: 1 male ( BPBM): same data as above but inventory number FBA201204 GoogleMaps .

Diagnosis. Body elongate, depressed, identification possible only on the basis of male genital features: parameres much longer than basal portion of tegmen; apical portion of pala long and strongly narrowed with short apical processes, length of apical processes of penis equal.

Description. Holotype, male. Body elongate oval, depressed, shining, covered with brownish setae, uniformly brown.

Head of moderate size, flattened, shiny, covered with small punctures separated by ca. 1.0 diameter; clypeus moderately long, slightly expanded antero-laterally, gently arcuate in front margin. Eyes moderate in size, prominent; head ca. 1.5× wider than interocular space. Antennae filiform, reaching basal 1/3 of elytra. Pronotum convex in mesal portion of the disc, punctures similar to those on head, separated by ca. 1.0 diameter; antero-lateral angles widely subtriangular; postero-lateral angles right-angled; posterior margin slightly bisinuate. Scutellar shield relatively small, punctate, equilateral-triangular. Elytra oval, sides subparallel in basal half, regularly rounded in posterior half, punctation stronger than on pronotum, punctures separated by ca. 0.5 diameter; humeri elevated. Hind tibial spurs slightly curved, dorsal one 0.7× as long as tarsomere 1, ventral one 0.4× as long as dorsal one.

Sternite VIII very small, transversely V-shaped (L 0.05 mm, W 0.12 mm). Sternite IX (L 0.18 mm, W 0.24 mm) V-shaped, apodemes not fused at base. Tergite VIII (L 0.38 mm, W 0.29 mm) with transversely rectangular apical plate, bearing a row of short setae on apical margin, apodemes as long as apical plate; tergite IX (L 0.37 mm, W 0.21 mm) with rectangular apical plate, apodemes ca. 2× longer than apical plate. Aedeagus asymmetrical. Tegmen (L 0.91 mm, W 0.13 mm) very long and narrow, Y-shaped ( Fig. 6A View FIGURE 6 ). Penis (L 0.78 mm, W 0.23 mm) elongate, pala oval in basal portion, and strongly narrowed in apical portion, apex of pala with two hooked, asymmetrical, short processes with pointed apices ( Fig. 6B View FIGURE 6 ).

Female. Unknown.

Variability. TL variable, ca. 2.3–2.6 mm.

Measurements and ratios. Males (n=2): TL 2.27–2.60 mm (2.43 mm), EL 1.93–2.27 mm (2.10 mm), PL 0.40–0.53 mm (0.43 mm), EW 1.47–1.57 mm (1.52 mm), PW 1.10–1.20 mm (1.15 mm), TL/EW 1.55–1.66 (1.61), PW/PL 2.25–2.75 (2.53), EL/EW 1.32–1.45 (1.38), EL/PL 4.25–4.83 (4.54), EW/PW 1.31–1.33 (1.29).

Distribution. Known only from the type locality on Taveuni Island ( Fig. 9D View FIGURE 9 ).

Etymology. After Devo Peak, the type locality of the species.

Remarks. A female specimen was found in the same locality, but as many species of Scirtes occur together, it was not certain if this was a female of Scirtes devoensis sp. nov. Genitalia of the specimen are illustrated ( Fig. 10 View FIGURE 10 ) and briefly described in the ‘Discussion’ section.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scirtidae

Genus

Scirtes

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