Hebrus fulvinervis Horváth, 1929

Kment, Petr, Jindra, Zdeněk & Berchi, Gavril Marius, 2016, Review of West-Palaearctic Hebridae with description of a new species and redescription of Hebrus fulvinervis (Hemiptera: Heteroptera), Zootaxa 4147 (3), pp. 201-239 : 220-224

publication ID

https://doi.org/ 10.11646/zootaxa.4147.3.1

publication LSID

lsid:zoobank.org:pub:B54FCD54-7514-408D-9B6F-62BF3DE4DA66

DOI

https://doi.org/10.5281/zenodo.6055926

persistent identifier

https://treatment.plazi.org/id/03BD2655-FFB3-D209-FF7C-FD83A7CDE6C3

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Plazi

scientific name

Hebrus fulvinervis Horváth, 1929
status

 

Hebrus fulvinervis Horváth, 1929 View in CoL

( Figs. 40–43 View FIGURES 40 – 45. 40 – 43 , 46–65 View FIGURES 46 – 53 View FIGURES 54 – 56 View FIGURES 57 – 64 View FIGURES 65 )

Hebrus ruficeps View in CoL (misidentification): Lindberg (1922): 16 (faunistics).

Hebrus fulvinervis Horváth, 1929: 313 View in CoL (original description, comparison with H. ruficeps View in CoL ). Syntypes: 7 specimens, Romania: Cruce (1 spec.), Sibiu (2 spec.) , Râu de Mori (1 spec.); Bosnia and Herzegovina: Jablanica (1 spec.), Sarajevo (2 spec.) ( HNHM) .

Neogaeus fulvinervis View in CoL : Jordan (1954): 603 –604 (comparison with remaining species of Europe and Near East); Wagner (1957): 202 (comparison with H. franzi View in CoL ).

Hebrus fulvinervis: Stichel (1955): 150 View in CoL –151 (key, diagnosis), Stichel (1956): 162 (catalogue), Benedek (1969): 83 (key), Benedek (1970): 43 –44 (faunistics); Andersen (1995): 80 (catalogue).

Type material examined. Syntypes: 1 ♀ (macropterous), ‘Malomviz / Pável [p, white label] // fulvinervis [hw, underlined with red] / det. Horváth [p, white label] // TYPUS [p, red label]’ (HNHM); 1 Ƌ 1 ♀ (brachypterous), ‘Nagyszeben / Coll. Fuss [p, white label] // pusillus [hw] Coll. Fuss [p, white label] // fulvinervis [hw, underlined with red] / det. Horváth [p, white label] // Ƌ or ♀ [hw; respectively] / TYPUS [p, red label]’ (HNHM).

Additional material examined. BULGARIA: Blagoevgrad Province: Gara Sandanski, Struma , 20.vii.1956, 3 Ƌ 3 ♀, L. Hoberlandt lgt., P. Kment det. ( NMPC) ; Gotse Delchev (→ Ognianovo), Mesta river banks, 500 m a.s.l., Locality No. 13B/72, 16.viii.1972, 1 Ƌ (brachypterous) , A. Merta lgt. ( MMBC) .

Redescription. Macropterous and brachypterous form. Colouration ( Figs. 40–43 View FIGURES 40 – 45. 40 – 43 ). Head yellowish to reddish brown, in some specimens somewhat darker anteriorly, sometimes narrowly infuscate around ocelli. Eyes red to dark brown. Antennal segments brown, basal two thirds of segment I and basal third of segment II paler, yellowish brown. Bucculae and labium yellowish brown. Pronotum and mesoscutellum yellowish to reddish brown, in some specimens pronotum anterolaterally dark brown; metanotal elevation (‘scutellum’) darker than pronotum, brown to dark brown. Propleura and meso- and metacoxal cavities yellowish to reddish brown, remaining portions of meso- and metathorax ventrally brown. Legs yellowish to pale brown. Clavus anteriorly milky white, in its posterior one to two thirds gradually becoming brown. Veins of corium yellowish to reddish brown, concolorous with disc of pronotum, only anteriorly infuscated with dark brown; corium between veins white. Membrane of brachypterous form completely brown ( Fig. 41 View FIGURES 40 – 45. 40 – 43 ), in macropterous form brown with conspicuous oval whitish central spot, and two indistinct paler spots anterolaterally ( Figs. 40, 42–43 View FIGURES 40 – 45. 40 – 43 ). Abdomen dark brown, pygophore slightly paler.

Vestiture. Pubescence on head, pronotum, sides of thorax, mesoscutellum and metanotal elevation (‘scutellum’) very short, in optical microscope indistinct (see Figs. 46–53 View FIGURES 46 – 53 ). Clavus completely bare ( Figs. 50–53 View FIGURES 46 – 53 ). Vein of corium with distinct, short and fine pale setae ( Figs. 46, 50 View FIGURES 46 – 53 ). Thorax and abdomen ventrally with dense silver pubescence. Antennae and legs with long pale hairs ( Figs. 48–49 View FIGURES 46 – 53 , 55–56 View FIGURES 54 – 56 ).

Structure. Body elongate ( Figs. 40–43 View FIGURES 40 – 45. 40 – 43 , 46–47 View FIGURES 46 – 53 ), about 2.3–2.6× longer than wide across humeral angles. Vertex with median sulcus not visible ( Figs. 48–49 View FIGURES 46 – 53 ). Bucculae low, ventrally straight, posteriorly conically produced ( Fig. 55 View FIGURES 54 – 56 ). Labium reaching anterior margin of metacoxae. Antennal segment I stoutest, cylindrical, slightly curved ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 , 48–49 View FIGURES 46 – 53 , 54–55 View FIGURES 54 – 56 ); segment II clavate ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 , 54 View FIGURES 54 – 56 ); segments III and IVa terete ( Figs. 4 2–43 View FIGURES 4 – 12 View FIGURES 1 – 3 View FIGURES 13 – 16 View FIGURES 17 – 22 View FIGURES 23 – 28. 23 – 24 View FIGURES 29 – 35 View FIGURES 36 – 39 View FIGURES 40 – 45. 40 – 43 , 54 View FIGURES 54 – 56 ); segment IVb narrowly fusiform ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 , 54 View FIGURES 54 – 56 ). Antennal segments from longest to shortest ( Fig. 54 View FIGURES 54 – 56 ): III> IVb ≥ I ≥ II ≥ IVa; segment I usually slightly longer than II (1.14×) and as long as compound eye ( Fig. 55 View FIGURES 54 – 56 ), rarely as long as II; segment IV fully divided into IVa and IVb ( Figs. 54, 56 View FIGURES 54 – 56 ). Pronotum ( Figs. 46–47, 50–51 View FIGURES 46 – 53 ) transverselly hexagonal, anterior collar narrow, middle transverse constriction deeper and humeral angles more arcuately produced in macropterous form (pronotum humeral width 0.69–0.79 mm; Figs. 46, 50 View FIGURES 46 – 53 ) than in brachypterous form (pronotum humeral width 0.59–0.67; Figs. 47, 51 View FIGURES 46 – 53 ). Metanotal elevation trapezoid; in macropterous form longer (2.8× wider than long), posteriorly with wide and deep U-shaped incision ( Fig. 52 View FIGURES 46 – 53 ), in brachypterous form shorter (3.1× wider than long), posteriorly widely truncate with only shallow U-shaped incision ( Fig. 53 View FIGURES 46 – 53 ); disc of metanotal elevation anteriorly depressed with more or less well developed median carina, posteriorly flat ( Figs. 52–53 View FIGURES 46 – 53 ), not turned upwards ( Fig. 54 View FIGURES 54 – 56 ). Metapleuron only slightly gibbose, metathorax therefore not wider than pronotum. Hemelytra of macropterous form reaching ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 , 46 View FIGURES 46 – 53 ) or nearly reaching ( Fig. 40 View FIGURES 40 – 45. 40 – 43 ) apex of abdomen. Hemelytra of brachypterous form reaching posterior margin of mediotergite IV (about midlength of abdomen), veins of corium reaching only midlength of mediotergite III ( Figs. 41 View FIGURES 40 – 45. 40 – 43 , 47 View FIGURES 46 – 53 ). Metafemora and metatibiae of both sexes straight, without long hairs ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 , 46 View FIGURES 46 – 53 , 54 View FIGURES 54 – 56 ). Mediotergites I and II with two thin, submedian, posteriad slightly diverging longitudinal keels. Male genitalia: Pygophore obovate in dorsal view ( Figs. 57–59 View FIGURES 57 – 64 ); proctiger short, posteriorly oval ( Fig. 62 View FIGURES 57 – 64 ), only slightly protruding from pygophore outline posteriorly ( Figs. 57–59 View FIGURES 57 – 64 ); paramere hook-shaped ( Figs. 60–61 View FIGURES 57 – 64 ); aedeagus as in Figs. 63–64 View FIGURES 57 – 64 .

Measurements (mm). Brachypterous form. Male / female (n = 2 / 1). Body length: 1.51–1.74 / 1.66. Pronotum: anterior width: 0.34–0.36 / 0.36, humeral width: 0.59–0.67 / 0.65. Lengths of antennal segments: I: 0.14 / 0.14, II: 0.12–0.14 / 0.14, III:–/ 0.18, IVa:–/ 0.12, IVb:–/ 0.14. Length of metafemur: 0.44 / 0.5, metatibia: 0.52 / 0.55, metatarsus: 0.18 / –.

Macropterous form. Male / female (n = 3 / 4; median (minimum–maximum)). Body length: 1.66 (1.60–1.68) / 1.80 (1.78–1.82). Pronotum: anterior width: 0.36 (0.34–0.36) / 0.38 (0.36–0.38), humeral width: 0.71 (0.69–0.71) / 0.77 (0.75–0.79). Lengths of antennal segments: I: 0.14 (0.14–0.16) / 0.14 (0.14–0.16), II: 0.12 (0.12–0.14) / 0.13 (0.12–0.14), III: 0.20 (0.20–0.20) / 0.20 (0.20–0.22), IVa: 0.12 (0.12–0.12) / 0.12 (0.10–0.14), IVb: 0.16 (0.16– 0.16) / 0.16 (0.16–0.16). Length of metafemur: 0.50 (0.46–0.50) / 0.48 (0.48–0.50), metatibia: 0.55 (0.53–0.57) / 0.55 (0.55–0.59), metatarsus: 0.16 (0.16–0.16) / 0.16 (0.16–0.20).

Systematic placement and differential diagnosis. The complete subdivision of antennal segment IV into two (IVa and IVb—see Fig. 56 View FIGURES 54 – 56 ) as well as other characters relating it to H. ruficeps , justify the transfer of Hebrus fulvinervis to the subgenus Hebrusella as defined by Poisson (1944).

Hebrus fulvinervis View in CoL seems closely related to Euro-Siberian H. ruficeps View in CoL , both sharing the dimorphism of hemelytra development and antennal segment I as long as or only slightly longer than segment II ( Jordan 1954, Stichel 1955, Benedek 1969). All African species of the subgenus Hebrusella are known only in the macropterous form.

However, H. fulvinervis View in CoL differs from H. ruficeps View in CoL by being slightly larger (macropterous form 1.60–1.82 mm, brachypterous form 1.51–1.74 mm) (in H. ruficeps View in CoL 1.20–1.70 mm) (e.g. Benedek 1969, Savage 1989); macropterous specimens are more frequent than brachypterous specimens (in H. ruficeps View in CoL the macropterous form is rare) ( Benedek 1969), the hemelytra of macropterous form usually reaches the end of the abdomen ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 ) (in H. ruficeps View in CoL the hemelytra of the macropterous form reaches only mediotergite VII) ( Benedek 1969); the shortwinged form is brachypterous with the hemelytra reaching the posterior margin of mediotergite IV ( Fig. 41 View FIGURES 40 – 45. 40 – 43 ) (micropterous in H. ruficeps View in CoL , with the hemelytra reaching only to the anterior margin of mediotergite II—Fig. 44) ( Horváth 1929, Benedek 1969); the veins of the corium are yellowish brown ( Figs. 42–43 View FIGURES 40 – 45. 40 – 43 ) (in H. ruficeps View in CoL the veins of the corium are dark reddish brown or dark brown—Fig. 45) ( Stichel 1955); and antennal segment IVb is only slightly (1.17–1.33) longer than IVa (in H. ruficeps View in CoL antennal segment IVb is more than twice longer than IVa) ( Jordan 1954).

Habitat. According to the locality database of the MMBC, the specimen from Gotse Delchev was collected on the left bank of Mesta River, most probably in a muddy habitat surrounded by Salix spp. and Alnus glutinosa (sunny weather, temperature 25–38°C, 10:30–15:00) (I. Malenovský, pers. comm.).

Distribution ( Fig. 65 View FIGURES 65 ). Europe: Bosnia Herzegovina: Ilidža (= Ilidze) [43°49′51″N 18°17′56″E] ( Lindberg 1922, as H. ruficeps ; Benedek 1970), Sarajevo [43°51′27″N 18°24′45″E], Jablanica (= Jablanitza) [43°39′27″N 17°45′38″E] ( Horváth 1929); Bulgaria: Gotse Delchev [41°34′21″N 23°43′43″E], Sandanski [41°33′34″N 23°16′23″E] (this paper); Romania: Sibiu county: Sibiu (= Cibinium, Nagyszeben) [45°47′54″N 24°07′32″E], Hunedoara county: Râu de Mori (= Malomvíz) [45°29′48″N 22°51′15″E], Suceava county: Crucea (= Cruce) [47°21′03″N 25°36′29″E] ( Horváth 1929). New species for Bulgaria.

HNHM

Hungarian Natural History Museum (Termeszettudomanyi Muzeum)

NMPC

National Museum Prague

MMBC

Moravske Muzeum [Moravian Museum]

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Hebridae

Genus

Hebrus

Loc

Hebrus fulvinervis Horváth, 1929

Kment, Petr, Jindra, Zdeněk & Berchi, Gavril Marius 2016
2016
Loc

Hebrus fulvinervis:

Andersen 1995: 80
Benedek 1970: 43
Benedek 1969: 83
Stichel 1956: 162
Stichel 1955: 150
1955
Loc

fulvinervis

Wagner 1957: 202
Jordan 1954: 603
1954
Loc

Hebrus fulvinervis Horváth, 1929 : 313

Horvath 1929: 313
1929
Loc

Hebrus ruficeps

Lindberg 1922: 16
1922
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