Entyposis frici Bezdek & Sehnal, 2023

Bezdek, Ales, Sehnal, Richard, Elmi, Hassan S. A., Sommer, David & Kral, David, 2023, Entyposis frici (Coleoptera, Scarabaeidae, Melolonthinae), a new species from Somaliland, ZooKeys 1165, pp. 1-15 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.1165.101908
publication LSID	lsid:zoobank.org:pub:D625BAB3-1D14-411A-B477-069B62F9E5CF
persistent identifier	https://treatment.plazi.org/id/AC32231B-E8D5-4308-950D-D6CE53F2A460
taxon LSID	lsid:zoobank.org:act:AC32231B-E8D5-4308-950D-D6CE53F2A460
treatment provided by	ZooKeys by Pensoft
scientific name	Entyposis frici Bezdek & Sehnal
status	sp. nov.

Treatment

Entyposis frici Bezdek & Sehnal sp. nov.

Figs 1 View Figures 1–4 , 2 View Figures 1–4 , 9 View Figures 9–16 , 10 View Figures 9–16 , 17 View Figures 17–24 , 18 View Figures 17–24 , 25 View Figures 25–32 , 26 View Figures 25–32 , 33 View Figures 33–36 , 37 View Figures 37–40 , 44 View Figure 44

Type locality.

Somaliland, Laascaanood [= Las Anod], 8°29.0535'N, 47°22.6342'E, ca 680 m a.s.l.

Type material.

Holotype, male: "Somaliland, 7.-8.x.2021 | LAAS CANOOD [= Las Anod] - Hamdi Hotel | 8.484225N, 47.377236E | ca 680m, Z. Fric lgt.". Paratype, female, same data as for holotype.

Type depository.

Holotype and paratype are deposited in NMPC.

Description of the holotype.

Male. Body length 13.6 mm (Fig. 1 View Figures 1–4 ). Body elongate, strongly convex, surface brown, appendages somewhat lighter, moderately shiny, setation pale. Head and pronotum covered with short, stout, semierect setae; elytra with nearly scale-like setation. Legs and ventral surface with sparse, long, erect setae mixed with much shorter, scale-like setae.

Head, including clypeus, densely coarsely punctate, each puncture with short, stout, semierect seta. Clypeus trasverse, broadly rounded, emarginate at middle (Fig. 9 View Figures 9–16 ). Frontoclypeal carina broadly arcuate. Occipital carina present, prominent. Eye canthus narrow, long, with sparse, long setation. Eye large, distincly extended beyond canthus. Antenna with 10 antennomeres, club trimerous, slightly shorter than antennal shaft. Antennomere 1 with posterior longitudinal row of erect setae and few isolated erect setae at apex; antennomere 2 bare; antennomeres 3-7 with very few (1-4) isolated setae; club sparsely covered with moderately long, erect setae. Labrum transverse, deeply bilobed; lobes rounded, with coarse irregular punctures bearing long, erect setae. Terminal maxillary palpomere narrow, only slightly expanded apically (Fig. 37 View Figures 37–40 ), distinctly shorter than palpomeres 1 and 2 combined.

Pronotum transverse, convex, widest at about middle; base broader than anterior margin; with shallow, oval anteromedial depression narrower then head weakly rising toward edge of crest (Figs 17 View Figures 17–24 , 25 View Figures 25–32 ). Anterior margin with well visible tubercle at middle; anterior angles weak, broadly rounded. Lateral margins crenulate, with moderately long setae. Posterior margin with distinct border, very shortly interrupted at middle. Crest delimiting anteromedial depression well visible, with wide V-shaped impunctate strip (Fig. 17 View Figures 17–24 ) and small impunctate area in basal part of depression. Punctation of remaining surface coarse, somewhat irregular, punctures separated by 1-2 × their diameters. Each puncture bearing with short, stout, semirecumbent seta.

Scutellum broadly triangular, sparsely and coarsely punctate in basal half, with short, stout setae; apical area impunctate and bare.

Elytron convex, widest at about middle, sutural angle obtuse-angulate. Striae absent; humeral bones present, weakly swolen, impunctate. Surface of elytron moderately shiny, covered with shallow, regularly spaced punctures, separated by 2-3 × puncture diameters. Each puncture bearing with short, recumbent, scale-like seta. Epipleuron distinct, complete, narrow, with row of moderately long erect setae. Apical half of lateral margin of elytron with membranous border.

Macropterous.

Legs with femora shiny, irregularly punctate, setaceous; setae of metafemora short, partially scale-like. Protibia narrow, distinctly tridentate; terminal spur present, slightly curved externally, acute apically, basal third serrate, inserted against emargination between medial and apical teeth. Mesotibia and metatibia slightly expanded apically, each with one setiferous transversal carina. Mesotibial terminal spurs subequal in length, flattened, acute apically. Upper terminal spur of metatibia flattened, slightly curved, acute apically, about ¼ longer than lower, apically truncate spur. Tarsomeres narrow, long, with two rows of short erect setae ventrally. Each metatarsomere with longitudinal finely serrate crest ventrally. Claws bifid, with vetrobasal teeth and entire ventral edge of lower claw finely serrate.

Ventral surface of thorax sparsely covered with mixture of moderately long erect setae and recumbent scale-like setae. Abdominal ventrites 3-7 covered with irregular punctures bearing recumbent scale-like setae and few isolated moderately long erect setae. Pygidium large, convex, irregularly punctate with short semirecumbent setae. Lateral and apical margins of pygidium distinctly bordered.

Male genitalia. Parameres symmetrical (Fig. 33 View Figures 33–36 ), fused basally, longer than phalobase.

Female (Figs 2 View Figures 1–4 , 10 View Figures 9–16 , 18 View Figures 17–24 , 26 View Figures 25–32 ) differs from male in the following characters: body length 13.3 mm, antennal cbub distinctly shorter then antennomeres 1-7 combined, pronotal anteromedial depression less developed, tarsomeres of all legs shorter.

Differential diagnosis.

Entyposis frici sp. nov. belongs to a group of species with a shallow anteromedial depression. In the key of the genus Entyposis ( Sehnal 2017), E. frici sp. nov. keys to the couplet with E. cordipenis . The male of E. frici sp. nov. differs from those of E. cordipenis in the shape of the pronotum-the anteromedial depression is only very faintly visible in the lateral view in E. frici sp. nov. (Fig. 25 View Figures 25–32 ), whereas it is more pronounced in E. cordipenis (Fig. 27 View Figures 25–32 ). The male genitalia of the two species are different, in E. cordipenis the apical part of the paramere (in dorsal view) is broad (Fig. 34 View Figures 33–36 ), whereas in E. frici sp. nov. it is narrow (Fig. 33 View Figures 33–36 ).

Three additional Entyposis species are known from Kenya and northern Tanzania, fairly close to the Horn of Africa: E. impressa , E. mendax , and E. squamulata . Entyposis impressa and E. mendax share a shallow anteromedial depression with E. frici sp. nov. Entyposis impressa is easily distinguished from E. frici sp. nov. by the shape of the male genitalia in both dorsal and lateral views (compare Figs 33 View Figures 33–36 and 35 View Figures 33–36 ). The differences in the shape of the male genitalia between E. frici sp. nov. and E. mendax are less pronounced (Figs 33 View Figures 33–36 and 36 View Figures 33–36 ), but both species differ markedly in the shape of the terminal maxillary palpomere, which is elongate in E. frici sp. nov. (Fig. 37 View Figures 37–40 ), but shorter and apically expanded in E. mendax (Fig. 40 View Figures 37–40 ).

No specimen of E. squamulata is available to us. This species was described rather recently based on two males only. According to the primary description ( Lacroix and Montreuil 2012), males of E. squamulata are clearly distinguished from E. frici sp. nov. by a distinct anteromedial depression and by the shape of the tubercle at the middle of the anterior margin of the pronotum, which is bilobed in E. squamulata but simple in E. frici sp. nov.

Collecting events.

Both specimens were attracted by UV light trap and sat on the wall of the Hamdi Hotel ( Zdeněk Faltýnek Fric pers. comm. 2022).

Etymology.

The name of the species is dedicated to Zdeněk Faltýnek Fric, a specialist in the phylogeny and ecology of butterflies, the collector of the type series.

Distribution.

The species is known only from the type locality, Laascaanood, Somaliland (Fig. 40 View Figures 37–40 ).

Remark.

Members of Entyposis seem to be rarely collected. Most species are known from a very few specimens, even only from the type series. We have examined about 500 specimens of Schizonychini collected by Czech entomologists in Somaliland during the last four years. Among this rich material, only three specimens of Entyposis were found. In addition to E. frici sp. nov. we discovered a single female of probably undescribed Entyposis from Beerato (Figs 41 View Figures 41–43 - 44 View Figure 44 ). We have postponed its description until more specimens, including males, are available.

Key to the species of Entyposis from northeastern Africa, males only

1	Tubercle at middle of anterior margin of pronotum bilobed	E. squamulata Lacroix & Montreuil, 2012
-	Tubercle at middle of anterior margin of pronotum simple	2
2	Anteromedial depression of pronotum shalow and very faintly visible in lateral view (Figs 25 View Figures 25–32 , 29 View Figures 25–32 , 31 View Figures 25–32 )	3
-	Anteromedial depression of pronotum more distinctly pronounced in lateral view (Fig. 27 View Figures 25–32 )	E. cordipenis Sehnal, 2017
3	Narrow tip of male paramera (lateral view) very short (Fig. 35 View Figures 33–36 )	E. impressa Kolbe, 1894
-	Narrow tip of male paramera (lateral view) distinctly longer (Figs 33 View Figures 33–36 , 36 View Figures 33–36 )	4
4	Terminal maxillary palpomere elongate (Fig. 37 View Figures 37–40 )	E. frici sp. nov.
-	Terminal maxillary palpomere expanded apically (Fig. 40 View Figures 37–40 )	E. mendax Péringuey, 1904