Luridiblatta sp. B

Bohn, Horst, 2022, Revision of the genus Luridiblatta (Blaberoidea, Ectobiidae, Ectobiinae), Zootaxa 5215 (1), pp. 1-72 : 22-23

12. Luridiblatta sp. B

Fig. 35I

Material studied. LIBYA. 1♀, Mimuna bei Gharian, 20.IX.1906, leg. B.Klaptocz (completely two slides: Bo 1302). (M. Wien) .

Description. Size. Female. Length of pronotum: 2.05 mm (tegmina and metanotum not saved).

Colouration. Pronotum and mesonotum not deviating from the generalised pattern; abdominal tergites with three small dark patches (apart from the indistinct lateral ones), median patch of T1 T-shaped: narrowly triangular, laterally along the transversal ridge produced in a narrow stripe ( Fig. 35I ).

Relationship. The small size of the patches on the abdominal tergites and the shape of the median patch on T1 would allow the alignment to the beybienko- group; the absence of the submesal pair of patches on T2-6 is not contradictory, since these patches may also be weakly developed in other species of the group. But as long as the male sex is not known an exact positioing is not possible.

Determination key mainly for the males of the genus Luridiblatta

1 Transversal ridge of T6 complete, mesally with a short excurvation towards anteriorly ( Fig. 1A ); tegmina by far not reaching up to the abdominal end, apex fairly transversely cut ( Fig. 7H ) ( longitubulata -group)............................... 3

- Transversal ridge of T6 either incomplete, with a large mesal gap ( Fig. 1B ), or completely missing ( Fig. 1C,D ); tegmina at least almost reaching the abdominal end, apex variously shaped.................................................... 2

2 T6 strongly sclerotized, with strongly produced mesal part, transversal ridge with a wide mesal gap or missing at all ( Fig. 1B,C ); apex of tegmina obliquely rounded ( Figs. 19H , 34N ) or distinctly obliquely cut ( Fig. 22G ); genital hook with a quite normally broad shaft, diameter at middle length equals about a fifth of the total length ( Fig. 19A–N ) ( trivittata -group)..... 6

- T6 weakly sclerotized, without produced mesal part, but tergite as a whole curved or angularly bent towards anteriorly, transversal ridge completely missing ( Fig. 1D ); apex of tegmina symmetrically rounded ( Figs. 23F , 34L ); genital hook with an unusually broad shaft, diameter at middle length equals about a half of the total length ( Fig. 23J,K (beybienkoi- group).... 7

3 Glandular pouches very short, scarcely surpassing T7 ( Figs. 14B,C , 17A,B )...................................... 4

- Glandular pouches longer, usually considerably surpassing T7................................................. 5

4 Pit containing pairy vesiclelike structures ( Fig. 17B ), anterior pit wall without transversal crest, transparent window very small, usually hidden behind the vesicular structures, stabilising bracelet throughout rather slender ( Fig. 18A–H )......................................................................................... Luridiblatta vesiculosa sp. nov.

- Pit without vesiclelike structures, anterior pit wall with a ridgelike transversal crest laterally narrowing the well developed transparent windows, stabilising bracelet rather broad and often further broadening in its lower half ( Figs. 13F , 14A,B )................................................................................ Luridiblatta fenestrata sp. nov.

5 Glandular pouches usually much longer than length of T7 at its lateral border ( Fig. 10A–F ); anterior pit wall near the opening usually without hump ( Fig. 8A , but see 9G)..................................... Luridiblatta longitubulata sp. nov.

- Glandular pouches usually shorter than length of T7 at its lateral border ( Fig. 12A–F ); anterior pit wall usually with a pair of bulges protruding into the pit hole (“hump”, Fig. 11C )............................... Luridiblatta gibberosa sp. nov.

6 Transversal ridge of T6 only laterally present, large clavate bristles distributed only in the posterior half of the tergite ( Fig. 1B ); apex of tegmina obliquely rounded ( Fig. 19H )................................ Luridiblatta trivittata ( Serville, 1839)

- Transversal ridge of T6 completely missing, area covered with large clavate bristles laterally extended till near to the anterior border of the tergite ( Fig. 1C ); apex of tegmina obliquely cut ( Fig. 22G )................. Luridiblatta habbachii sp. nov.

7 Genital hook: crest of claw short, triangular, without antlerlike processes ( Figs. 23K , 24D,E )........................................................................................... Luridiblatta quadrivittata ( Chopard, 1963)

- Genital hook: crest of claw large, with two rather broad antlerlike processes ( Fig. 25K,L )............................ 8

8 Mesal dark stripe of pronotum in both sexes rather broad and twice intermittent still further broadened, at the anterior end suddenly strongly narrowed ( Fig. 34G–K ); female tegmina apically weakly convex.......... Luridiblatta cyprica sp. nov.

- Mesal dark stripe of pronotum in both sexes rather narrow, towards anterior gradually further narrowing; female tegmina apically shallowly concave............................................................................. 9

9 T7: Anterior border of the pit opening wall towards laterally continuing into a narrow edge converging with the transversely running gutter, both ending at close distance near the lateral border of the tergite ( Fig. 33H–J ); glandular tubules rather massive, usually very well visible, towards apically broadening.................................. Luridiblatta graeca sp. nov.

- T7 without such an edge ( Fig. 33B–D ); tubules not massive, often hardly visible, towards apically not broadening.............................................................................. Luridiblatta beybienkoi ( Mařan, 1957)

Figures

FIGURE 1A–D. Structures of male T6 of Luridiblatta; overview pictures to show the differences between the three species groups of the genus: A: longitubulata-, B,C: trivittata-, D: beybienkoi-group. The figure shows an exemplary selection of species of the three groups; the remaining species are similaraly depicted on Figs. 5E,F and 6A–D.—Abbreviations: ab anterior border of the tergite; ad, pd anterior, posterior deepening; arrows point to the anterior bristle stripe; mi group of lightly coloured spots indicating the insertion of dorso-ventral muscles; tr transversal ridge, not present in C,D; pr, po pre-ridge, post-ridge area of tergite.—Identifications: A (Sp 45/2, holotype), B (Sz 7/4), C (Al 36/7, holotype), D (Is 23/1).

FIGURE 7A–N. Main structures of L. longitubulata.—A–G. Male tergites. A: T1–3; B: T4; C: T5; D: T6; E: T7 with glandular pouch gp, tubules tu, and pit pi; F,G: T8, (G) anterior part in higher magnification, showing the rough cuticular structures along the anterior border.—H,I. Left tegmen of male (H) and female (I).—J,K. Hind wing lobe l with part of metanotum mt of male (J) and female (K).—L–N. Male genital hook with shaft sh, apical process of shaft ap, velum ve, and claw cl with its crest cr.—Enlargements: Same scale for A–F, and for H,I.—Identifications: A–H (Sp 45/2, holotype), I (Sp 45/10), J (Sp 45/8), K (Sp 47/15), L (Sp 39/4), M,N (Sp 45/14).

FIGURE 8A–F. Structures and colouration of L. longitubulata (A–E) and L. vesiculosa (F).—A. T7 of male in more detail. Ventral fold (vf) dividing the posterior part of the tergite; ws, sp weakly, strongly sclerotised area of the tergite surface; glandular structures: tubules tu and pouches gp, the latter ending posteriorly in a narrow tailpiece tp; pit structures: ab, pb anterior, posterior border of the pit opening; anterior pit wall aw, in the upper part with a strongly sclerotised area sa; further below with the transparent windows w, the window frame wf, and the stabilising bracelet s; posterior wall of pit pw with a pair hemispherical bulges bu; bo bottom of pit in profile; the opponent arrows indicate the axis of the assumed turning of the pit after mounting.—B,C. Left male (B) and female (C) tegmen (anteriorly at the right, posterior border below; compare with Fig. 7H,I); bristles of the lightly coloured area between the dark longitudinal stripes not inserted in the center of a dark spot (arrowheads, compare with Fig. 24F–I).—D–F. Thoracal nota (pr pronotum, ms mesonotum, mt metanotum) and tegmina, male (D) and female (E) of L. longitubulata, female of L. vesiculosa (F).—Identifications: A,B (Sp 45/2, holotype), C (Sp 45/10), D (Sp 45/12), E (Sp 47/13), F (Ma 46/3).

FIGURE 10A–F. Male T7 in L. longitubulata from various locations in Morocco to show the variability in the length and shape of the glandular pouch gp; pi glandular pit; hu hump and adjacent ec excavation of the anterior pit wall.—Identifications:A (Ma 17/14), B (Ma 8/2), C (Ma 13/1), D (Ma 12/1), E (Ma 20a/1), F (Ma 33/1).

FIGURE 11A–L. Main structures of L. gibberosa.—A–E. Male tergites. A: Tergites 1–6; B,C: T7; (B) outline: glandular pouch gp and pit pi; (C) more detailed: ab, pb anterior, posterior border of pit opening; anterior pit wall aw with strongly sclerotised area sa, stabilising bracelet s, window w, hump hu, and excavation ec; posterior pit wall pw with hemispherical bulge bu; D,E: T8, (E) anterior part in higher magnification, showing the rough cuticular structures along the anterior border.—F,G. Left tegmen of male (F) and female (G).—H,I. Hind wing lobe (l) with part of metanotum (mt) of male (H) and female (I).—J–L. Male hook with shaft sh and its apical process ap, surpassing the claw cl and its crest cr, velum not visible.—Enlargements: Same scale for A,B,D, for F,G, and for J,K.—Identifications: A–E,F (Ma 14/6, holotype), G (Ma 14/16), H,K,L (Ma 14/10), I (Ma 14/15), J (Ma 14/11), K,L (Ma 14/10).

FIGURE 12A–H. Structures of L. gibberosa.—A–F. Male T7, showing the variously sized glandular pouches gp and different aspects of the pit structures: ab, bp anterior, posterior border of opening; hu hump on the anterior pit wall aw; bu hemispherical bulge on the posterior pit wall pw; bo bottom of pit (profile).—G,H. Left male (G) and female (H) tegmen (anteriorly at the right, posterior border below), bristles of the lightly coloured area between the dark longitudinal stripes not inserted in the center of a dark spot (arrowheads, compare with Fig. 24F–I).—Identifications: A (Ma 14/4), B (Ma 14/1), C (Ma 14/5), D,G (Ma 14/10), E (Ma 15/1), F (Ma 61a/1), H (Ma 14/16).

FIGURE 13A–N. Main structures of L. fenestrata.—A–G. Male tergites.A: T2–4; B: T5; C: T6; D,F: T7; (D) outline: glandular pit (pi); (F) more detailed: anterior pit wall aw with sa strongly sclerotised area; s stabilising bracelet, tc transversal crest, w transparent window; posterior pit wall pw with hemispherical bulge bu; E,G: T8, (G) anterior part in higher magnification, showing the rough cuticula along the anterior border.—H,I. Left tegmen of male (H) and female (I).—J, K. Hindwing lobe (l) with part of mt metanotum of male (J) and female (K).—L–N. Male hook with sh shaft and its apical process ap, ve velum, cl claw with triangular cr crest; the arrow points to remnants of the sheath into which the hook can be retracted, also still covering for most part hook in N.—Enlargements: Same scale for A–E, and for H,I.—Identifications: A–H (Ma 16/19, holotype), I (Ma 16/31), J (Ma 16/21), K (Ma 16/4), L (Ma 16/24), M (Ma 16/26), N (Ma 16/25).

FIGURE 14A–C. Male T7 of L. fenestrata with differently developed glandular structures. Abbreviations: ab, pb anterior, posterior border of pit; aw anterior pit wall with s stabilising bracelet, sa strongly sclerotised area, tc transversal crest (in C covered by pw), w transparent window, and wf window frame; pw posterior pit wall with hemispherical bulges bu (in A,B strongly sclerotised); gp glandular pouches; tu tubules (in B on both sides of the label).—Enlargements: Same scale in A–C.— Identifications:A (Ma 16/19, holotype), B (Ma 16/20), C (Ma 16/8).

FIGURE 17A–C. Male structures of T7 in L. vesiculosa (specimen Ma 1/4). A: Complete T7; B,C: central area at higher magnification, focus stacking in B throughout the whole object, in C not deeper than to the pit opening.—Abbreviations: ab, pb anterior, posterior border of pit opening; anterior pit wall aw, with the strongly sclerotised area sa, the two edges of the excavation ed, the stabilising bracelet s, and the transüparent window w; posterior pit wall pw with a pair of large bulges bu; gp glandular pouches; tu tubules; vs vesicular structures; ts surface cuticula of the tergite reaching up to the posterior border of the pit opening; vf ventral fold of T7.

FIGURE 18A–J. Structures of L. vesiculosa.—A–H. Central region of the male T7 with glandular pit showing the high variability in the shape of the posterior pit wall pw and the vesicular structures vs. A: holotype, superficial focus stacking; B: another specimen with deep focus stacking; C–H: three specimens, each with deep (C,E,G) and superficial (D,F,H) focus stacking.—Further abbreviations: ab, pb anterior, posterior border of pit opening; bu bulges of posterior pit wall; ed edge of the excavation; gp glandular pouch; s stabilising bracelet; sa strongly sclerotised area.—I,J: Left male (G) and female (H) tegmen (anteriorly at the right, posterior border below), bristles of the lightly coloured area between the dark longitudinal stripes not inserted in the center of a dark spot (arrowheads, compare with Fig. 24F–I).—Enlargements: Same scale forA–H.— Identifications:A,I (Ma 5/8, holotype), B (Ma 3/3), C,D (Ma 6 /4), E,F (Ma 40/1), G,H (Ma 37/1), J (Ma 5/7).

FIGURE 19A–N. Main structures of L. trivittata.—A–G. Male tergites. A: T1–4; B: T5; C: T6; D: T7 with gp glandular pouches, tu tubules, and pit pi (for more details see Fig. 21C,D); E,G: T8, (G) with anterior part in higher enlargement to show the rough sclerotisation at the anterior border; F: T9, with lateral lobes (ll).—H,I. Left tegmen of male (H) and female (I).—J,K. Hindwing lobe l with part of metanotum mt of male (J) and female (K), arrows point to the excavated apices.—L–N. Male genital hook, with sh shaft, ve velum, ap apical process, cl claw and its crest cr; arrow points to a rather strong bulging out of the shaft opposite the base of the claw.—Enlargements: Same scale in A–F and in H,I.—Identifications:A–C,E–G,M,N (Sz 7/4), D,L (It 34/3), H (Sz 7/10), I (7/8), J (Sz 2/2), K (Sz 9/5).

FIGURE 22A–M. Male structures of L. habbachii and of L. spec. A.—A–H,L. L. habbachii, male holotype. A: T2,3; B: T4; C: T5; D: T6; E: T7 with glandular pit pi and pouches gp, the latter not well stretched; F: pit in more detail: ab, pb anterior, posterior border of pit opening; aw, pw anterior, posterior pit wall, the first with the strongly scerotised area sa, and a slight posterior excavation ec, the latter with apair of hemispherical bulges bu; G,H:left tegmen, (G) lightlycoloured area beween the arrows shown in (H) in more detail: bristles lost, but circular bases still visible; they are not positioned in the center of a dark spot (arrowhead); L: pronotum.—I–K,M. Luridiblatta sp. A. I–K: tegmina; (I) left tegmen, lightly coloured area between arrows shown in (J) in more detail, (K) respective aerea from the right tegmen: some of the bristle bases in the center of a—though only weakly—dark spot; M: pronotum.—Enlargements: Same scale in A–E.—Identifications:A–H,L (Al 36/7, holotype), I–K, M (Bo 1298)

FIGURE 23A–K. Main structures of L. quadrivittata.—A–E. Male tergites. A: T1–5; B: T6; C: T7, with glandular pouches gp, tubules tu, pit pi, and gutter gu; D,E: T8, (E) anterior part in more detail, rough cuticular structures along the anterior border only far laterally (arrow).—F,G. Left tegmen of male (F) and female (G).—H,I. Hindwing lobe l, with part of metanotum mt of male (H) and female (I).—J,K. Male genital hook, with sh shaft, ve velum, cl claw, cr crest (for more details see Fig. 24D,E).—Enlargements: Same scale for A–D, for F,G, and for J,K.—Identifications: A,C (Is 13/1), B,D,F (Is 23/1), E,K (Is 12/1), G (Is 23/3), H (Is 10/1), I (Is 11/3), J (Is 11/1).

FIGURE 24A–I. Structures of species of the beybienkoi-group.—A–E. Male structures of L. quadrivittata. A: T7 with glandular pouches gp; B,C: pit structures in more detail, focus stacking in B superficial, in C deeper. Abbreviations: ap, pb anterior, posterior border of pit opening; aw, pw anterior, posterior pit wall; bo pit bottom (profile); bu bulge; gu gutter; s stabilising bracelet; “sa” position of the strongly sclerotised area in the species of the first two species groups; tf transversal folds; ts surface cuticula of the tergite. D,E: apical part of the hook, in D focus on the apical process of the shaft ap, in E on the tip tc of the claw cl, cr crest.—F,G and H,I: Left male (F,H) and female (G,I) tegmina (anteriorly at the right, posterior border below) of L. quadrivittata (F,G) and L. beybienkoi (H,I): each bristle of the lightly coloured area between the dark longitudinal stripes inserted in the center of a dark spot (arrowheads).—Identifications: A–C,F (Is 23/1), D,E (Is 11/1), G (Is 23/3), H (Is 14/2), I (Is 18/2).

FIGURE 25A–L. Main structures of L. cyprica.—A–F. Male tergites. A: T1–4; B: T5; C: T6; D: T7, with glandular pouches gp, and pit pi; E,F: T8, (F) anterior part in more detail, rough cuticular structures along the anterior border only far laterally (arrow).—G,H. Left tegmen of male (G) and female (H).—I,J. Hindwing lobe l with part of metanotum mt of male (I) and female (J).—K,L. Male hook, with shaft sh, its apical process ap, velum ve, claw cl with crest cr, the latter with two strong antlerlike processes an.—Enlargements: Same scale forA–E, for G,H, and for K,L.—Identifications:A–G,I (Cy 18/1, holotype), H (Cy 16/2), J (Cy 29/3), K (Cy 27/1), L (Cy 17/1).

FIGURE 33 A–J. Left side of male T7 in the species of the beybienkoi-group. In all species the lateral angles of the pit opening are drawn out to a rather narrow gutter gu almost reaching the lateral border of the tergite. In L. graeca the anterior border of the pit opening continues laterally into a narrow edge ed converging with the gutter and approaching it closely near the lateral border of the tergite.—Further abbreviations: ab, pb anterior, posterior border of the pit opening; aw, pw anterior, posterior pit wall; gp glandular pouch; tu glandular tubule.—Identifications: A (Is 11/1), B (Ty 3/1), C (Is 21/1), D (Ty 1/1), E (Cy xx/1), F (Cy 18/1, holotype), G (Cy 21/1), H (Gr 1/5), I (Kr 23/2, holotype), J (Kr 10/5).

FIGURE 34 A–O. Pronotum (A–K), resp. pronotum, mesonotum and tegmina (L–O) of the Luridiblatta species designated on the corresponding figures.—Enlargements: Length of scale in all specimens 0,5 mm.—Identifications: A (Sp 45/2, holotype), B (Ma 14/6, holotype), C (Ma 5/8, holotype), D (Is 11/1), E (Is 13/4), F (Kr 23/2, holotype), G (Cy 18/1, holotype), H (Cy 23/1), I (Cy 24/1), J (Cy 29/3), K (Cy 29/2), L (Kr 20/2), M (Is 22/3), N (Sz 7/4), O (Sz 9/5).

FIGURE 35 A–I. Colouration of female tergites in Luridiblatta species.—A–C. Longitubulata-group (comparable colouration also in L. gibberosa).—D. Trivittata-group (colouration of the female of L. habbachii not kown).—E–H. Beybienkoi-group (similar colouration also in L. beybienkoi).—Abbreviations of the dark patches: m mesal, sm submesal, l lateral, sl sublateral, ts transversal stripe; arrows point to the mesal patch of T1 showing characteristic differences between the first two and the third species group.—Identifications: A (Sp 47/15), B (Ma 3/20), C (Ma 16/Y), D (Sa 21/17), E (Is 13/4), F (Gr 1/8), G (Cy 25/3), H (Cy 30/3), I (Bo 1302).