Lesteva (s.str.) balearica Lohse, 1967

Shavrin, Alexey V. & Zanetti, Adriano, 2021, Review of the genus Lesteva Latreille, 1797 (Coleoptera: Staphylinidae: Omaliinae Anthophagini) of the Iberian Peninsula, Zootaxa 4966 (4), pp. 401-427 : 406-407

Lesteva (s.str.) balearica Lohse, 1967

( Figs. 2 , 6–7 )

Lesteva balearcia Lohse, 1967: 11

Type material examined. Holotype, ♂ [aedeagus glued on the same card under the specimen]: ‘Mallorca | Balearen’ <handwritten>, ‘ Lesteva [handwritten] | balearica n. sp. [handwritten] | det. Dr. G. A. Lohse’ <printed>, ‘Holotypus’ <red, handwritten>, ‘Coll. | G. A. Lohse | MHNG-1994’ <printed>, ‘ HOLOTYPE | Lesteva | balearica sp. n. | Det. Lohse 1967 ’ <red, printed>, ‘MHNG | ENTO | 00087308 <printed>, ‘ Lesteva (s.str.) | balearica Lohse, 1967 | Shavrin A.V. det. 2021’ <printed> ( MHNG).

Paratypes: 1 ♂ [aedeagus glued on the same card under the specimen]: same labels as the holotype except for: ‘Para- | typoid’ <red, handwritten>, ‘ PARATYPE | Lesteva | balearica sp. n. | Det. Lohse 1967 ’ <yellow, printed>, ‘MHNG | ENTO | 00087309’ <printed> ( MHNG); 1 ♂, 2 ♀♀ [one specimen without head and pronotum]: ‘Mallorca | IV 65 | Benick’ <two labels, handwritten>, ‘balearica | Lohse | Paratyp’ <two labels, handwritten>, ‘Coll. | G.A. Lohse | MHNG-1994’ <printed>, ‘ PARATYPE | Lesteva | balearica sp. n. | Det. Lohse 1967 ’ <three labels, yellow, printed>, ‘MHNG | ENTO | 00087310’ <printed>, ‘MHNG | ENTO | 00087311’ <printed>, ‘MHNG | ENTO | 00087312’ <printed> ( MHNG); 3 ♂♂ [dissected, preparation with the aedeagus in Canada balsam on plastic card are pinned under related specimens]: same labels as above, except for: ‘MHNG | ENTO | 00087313’ <printed>, ‘MHNG | ENTO | 00087314’ <printed>, ‘MHNG | ENTO | 00087315’ <printed> ( MHNG); 1 ♂ [without right antennomeres 3-11], 1 ♀ [without left antennomeres 3-11]: same labels, but: ‘MHNG | ENTO | 00087316’ <printed>, ‘MHNG | ENTO | 00087317’ <printed> ( MHNG); 1 ♂, 2 ♀♀: ‘Mallorca | IV.65 Benick’ <handwritten>, ‘ Lesteva | balearica Lohse | Paratyp.’ <handwritten>, ‘ PARATYPE | Lesteva | balearica sp. n. | Det. Lohse 1967 ’ <yellow, printed>, ‘MHNG | ENTO | 00087318’ <printed>, ‘MHNG | ENTO | 00087319’ <printed>, ‘MHNG | ENTO | 00087320’ <printed> ( MHNG); 2 ♀♀ (one specimen without left antennomeres 3-11): same labels, but: ‘MHNG | ENTO | 00087321’ <printed>, ‘MHNG | ENTO | 00087322’ <printed> ( MHNG); 2 ♀♀: same data as the previous except for: ‘MHNG | ENTO | 00087323’ <printed>, ‘MHNG | ENTO | 00087324’ <printed> ( MHNG); 1 ♂ [dissected]: ‘Mallorca | Balearen | IV 1965 G. Benick’ <handwritten>, ‘ Lesteva | balearica n. sp. | det. G.A. Lohse’ <printed>, ‘Paratypus’ <red, printed> (cZan). All paratypes with additional printed labels: ‘ Lesteva (s.str.) | balearica Lohse, 1967 | Shavrin A.V. det. 2021’.

Material examined. SPAIN: Balearic islands: 1 ♀: Mallorca, Gorg Blau, Casa Nova , 39°49‘N 02°50E. 14.05.1978. H. Malicky leg. (cA) .

Redescription. Measurements (n=15): HW: 0.68–0.77; HL: 0.49–0.52; OL: 0.25–0.27; LT: 0.10; AL (holotype): 2.05; PL: 0.73–0.80; PWMax: 0.81–0.87; PWMin: 0.60–0.67; EL: 1.51–1.62; ESL: 1.37–1.50; EW: 1.35–1.42; MTbL (holotype): 0.97; MTrL (holotype): 0.55; AW: 1.21–1.35; AedL: 0.65–0.85; FL: 2.82–3.06; TL: 3.50–4.60 (holotype: 4.45).

Body yellow-brown to reddish-brown, usually with darker head and large, elongated, yellow to yellow-brown spot on apical half of each elytron, and paler apical abdominal segments; mouthparts, antennomeres and legs yellow to yellow-brown, usually with protibia somewhat darker. Punctation of head moderately dense and fine, sparser in middle and between ocelli, and distinctly denser around eyes; punctation of neck very sparse in middle, finer and coarser on lateral portions; punctation of pronotum about as than on middle portion of head, but slightly sparser, particularly in mediobasal third; scutellum with very fine, irregular punctation; punctation of elytra similar to that on pronotum, but sparser; abdominal tergites with regular, distinct and fine punctation, markedly finer on abdominal tergite VII. Latero-apical portions of head between supra-antennal prominces and apical margins of eyes with coarse and very dense sculpture; mediobasal portion of neck with transverse microreticulation, lateral portions of neck with moderately coarse transverse meshes; some specimens with fine, transverse microsculpture in medioapical third; abdominal tergites with distinct isodiametric sculpture. Habitus as in Fig. 2 .

Head 1.3–1.4 times as broad as long, distinctly elevated in middle; middle portion separated from lateral portions by very deep longitudinal depressions; eyes more than twice as long as temples; distance between ocelli slightly shorter than distance between ocellus and posterior margin of eye. Antennae reaching basal third of elytra when reclined, with moderately elongate antennomeres; basal antennomere more than three times as long as wide, 2 markedly narrower than basal antennomere, 3 slightly longer and narrower than 2, 4 slightly shorter and broader than 3, 5–8 slightly broader and longer than 4, 9 slightly broader than 8, 10 slightly shorter than 9.

Pronotum slightly broader than long, 1.1 times as broad as head, from their widest anterior third sharply rounded toward elongate, subparallel latero-basal margins; dorsal surface usually without impressions, but some specimens with very indistinct, long, paired impressions in middle and/or transverse impression in mediobasal third.

Elytra about as long as broad, 1.8 times as long as pronotum, slightly widened toward hind angles.

Abdominal tergites IV and V with paired, transverse and moderately wide tomentose spots.

Male. Apical margin of abdominal tergite VIII rounded or slightly concave. Apical margin of abdominal sternite VIII widely and deeply concave. Aedeagus with wide basal part, narrowed toward middle of median lobe, gradually widened toward apical third, with rounded apex; parameres moderately narrow, slightly widened apically, not reaching apex of median lobe, with four moderately short apical setae; internal sac wide and moderately short ( Fig. 6 ). Lateral aspect of aedeagus as in Fig. 7 .

Female. Apical margin of abdominal tergite VIII straight or rounded. Apical margin of abdominal sternite VIII rounded.

Comparative notes. Based on the size and the general shape of the body and antennomeres, length of temples and features of the punctation of the elytra, L. (s.str.) balearica is similar to European L. (s.str.) pubescens , from which it can be distinguished by the paler coloration of the body and the morphology of the aedeagus, without pubescence on the median lobe. Regarding the general shape of the aedeagus, it is somewhat similar to L. (s.str.) fontinalis and the Corsican L. (s.str.) praeses Fauvel, 1900 (Fig. 98e in Zanetti (1987)), from which it differs by the paler coloration, longer temples and the shape of the apical part of the median lobe.

Distribution. Lesteva balearica is an endemic species of Mallorca (Majorca), the largest of the Balearic islands.

Natural history. The detailed ecological data are unknown.

Figures

FIGURES 1–2. Habitus of Lesteva: 1–L. aterrima (Spain: Puerto de Cubilla), 2–L. balearica (Spain: Mallorca). Scale bar: 1.0 mm.

FIGURES 3–7. Aedeagus of Lesteva (3–5: L. aterrima (3–4: Spain: Covadonga, 5: Spain: Cubilla)), 6–7: L. balearica (Spain: Mallorca): 3, 6–parameral view, 4–5, 7–lateral view. Scale bar: 0.1 mm.