Theopea sekerkai, Lee & Bezdĕk, 2018

Lee, Chi-Feng & Bezdĕk, Jan, 2018, Revision of the genus Theopea Baly (Coleoptera: Chrysomelidae: Galerucinae) of East Asia: species lacking modified clypeus in males and the T. sauteri species group, Zootaxa 4508 (3), pp. 334-376 : 372-374

publication ID

https://doi.org/ 10.11646/zootaxa.4508.3.2

publication LSID

lsid:zoobank.org:pub:4C0CAE39-B5C3-419C-9A4D-493806280141

DOI

https://doi.org/10.5281/zenodo.5957187

persistent identifier

https://treatment.plazi.org/id/03928782-A86E-FFEB-1E89-774DFD9FFE2F

treatment provided by

Plazi

scientific name

Theopea sekerkai
status

sp. nov.

Theopea sekerkai sp. nov.

( Figs 18 View FIGURES 18 D–18F, 20)

Type series. Holotype ♂ ( NMPC): LAOS. Attapeu: Annam Highlands Mits., Dong Amphan NBCA, 15°05’09” N 107°25’05”E, 1150m, 30.IV.–5.V.2010, leg. J. Hájek. GoogleMaps Paratypes. 1♂, 1♀ ( NMPC), same data as holotype. LAOS. Attapeu GoogleMaps : 2♂♂, 1♀ ( BMNH), Bolaven Plateau, 15 km SE of Ban Huangkong, Nong Lom (lake) env., 15°02’N 106°35’E, 800m, 18–30.IV.1999, leg. E. Jendek & O. Šauša; Bolikhamsai GoogleMaps : 1♂, 1♀ ( RBCN), Ban Nape—Kaew Nua Pass, 18°21’3” N 105°09’1”E, 600m, 18.IV.–1.V.1998, leg. E. Jendek & O. Sausa GoogleMaps ; 2♂♂, 1♀ ( RBCN), same but with “leg. O. Sausa ”; Kharimouane : 1♂, 1♀ ( RBCN), Nakai env., Route no 8, 17°42’8” N 105°09’1”E, 560m, 4–8.V.1998, leg. E. Jendek & O. Sausa. GoogleMaps

Description. Length 5.6–6.1 mm, width 2.3–2.5 mm. General color ( Figs 18 View FIGURES 18 D–18F) metallic blue or purple; mouth parts brown or dark brown; antennae yellowish brown but five apical antennomeres more or less darkened; legs yellow, but tarsomere III and apex of tarsomere V darkened. Vertex with reticulate microsculpture. Antennae filiform in males ( Fig. 20A View FIGURES 20 ), antennomeres III–V slightly curved, length ratios of antennomeres I–XI 1.0: 0.3: 0.7: 1.0: 1.0: 1.0: 1.0: 0.9: 0.9: 0.8: 1.0, length to width ratios of antennomeres I–XI 3.0: 1.7: 2.6: 3.3: 3.4: 3.5: 3.5: 3.4: 3.3: 3.5: 4.6; slender in females ( Fig. 20B View FIGURES 20 ), antennomeres III–X straight, length ratios of antennomeres I–XI 1.0: 0.3: 0.6: 0.9: 0.9: 0.8: 0.8: 0.7: 0.7: 0.7: 0.9, length to width ratios of antennomeres I–XI 3.8: 1.7: 3.3: 4.8: 4.5: 4.2: 4.2: 4.3: 4.3: 4.4: 4.9. Pronotum transverse, 1.3x wider than long, disc with one pair of lateral depressions, reticulate microsculpture, and with dense, coarse punctures; lateral margin basally narrowed; apical and basal margins subtruncate. Elytra elongate and parallel-sided, 1.8x longer than wide; disc with reticulate microsculpture, dense, coarse punctures, arranged into longitudinal rows, and with distinct, longitudinal ridges between longitudinal rows of punctures, these ridges weaker in males. Apical margin of abdominal ventrite V in females ( Fig. 20H View FIGURES 20 ) subtruncate, but slightly depressed near sides. Tarsomeres I of front legs swollen in males ( Fig. 20I View FIGURES 20 ), subparallel in females ( Fig. 20J View FIGURES 20 ). Penis ( Figs 20 View FIGURES 20 C–20E) extremely slender, 10.0x longer than wide; apex narrowly rounded, with medial, shallow, narrow notch; sides asymmetrical, expanded to right at apical 1/3, tectum extremely elongate from apical 1/20 to basal 3/10, narrower apically; almost straight in lateral view, moderately curved near base; triangular processes small; internal sac with one slender endophallic sclerite complex, 0.7x as long as penis, composed of two sclerites, basal piece much shorter than sclerotized apical piece, apical piece with apical half membranous, dorsal sclerite extremely elongate, 3.6x longer than basal piece, apex acute in lateral view; ventral sclerites present. Gonocoxae ( Fig. 20F View FIGURES 20 ) elongate, slightly broadened at apical 1/6, connected from basal 1/3 to apical 1/5; apices narrowly rounded, each gonocoxa with seven setae along outer margin from apex to apical 1/6; with one pair of short lateral processes at basal 2/5. Ventrite VIII ( Fig. 20G View FIGURES 20 ) longitudinal and well sclerotized; disc with several long setae at sides and near apical margin, and with dense, short setae along apical margin; spiculum extremely slender. Receptacle of spermatheca ( Fig. 20K View FIGURES 20 ) slightly swollen; pump broad and strongly curved; proximal spermathecal duct deeply inserted into receptacle, broad and short.

Diagnosis. Males of T. sekerkai sp. nov. have asymmetrical penis similar to those of T. coerulea . They differ in possessing a membranous apex of the apical piece and shorter dorsal sclerite, 3.6x longer than basal piece in T. sekerkai sp. nov. ( Figs 20 View FIGURES 20 C–20E) contrary to well sclerotized apical piece and shorter dorsal sclerite, 1.6x long than basal piece in T. coerulea ( Figs 14 View FIGURES 14 C–14E).

Etymology. This new species is dedicated to Lukáš Sekerka (Curator, NMPC), who assisted this study in many ways.

Distribution. Central and South Laos.

NMPC

National Museum Prague

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Theopea

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