Dziriblatta (Macaroblatta) dendroglandulosa, Bohn, 2019

Bohn, Horst, 2019, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) from North Africa, Spain, and the Macaronesian islands. I. The nine subgenera of the genus, Zootaxa 4610 (1), pp. 1-73 : 30-31

Dziriblatta (Macaroblatta) dendroglandulosa , spec. nov.

Figs. 18 E–H, J, 19A–Q, 20D, 23E.

Etymology. The species name refers to the treelike (tree in Greek: dendron) ramification of the male T7 gland (in Latin: glandus).

Diagnosis. Among the Macaronesian species the only one with branched male T7 glandular pouches, and among the species with long tegmina in the male the only without prolonged latero-posterior corners on T7.

Material studied.

Type material. Canaries. Holotype, 1♂, Fuerteventura, Mt. Jandía (N Morro del Jable), Pico de la Zarza , 750 m, 17.I.1995, leg. H.Bohn (completely on 2 slides: Ca 99/1). (C. Bohn, ZMS)

Additional Material. Canaries. 1♂, Fuerteventura, Cumbre Jandia , 15.II.1977, leg. M.Báez (slide: Bo 223) ; 1♀, Fuerteventura, Cumbre Jandia , 10.V.74, leg. A.Machado. ( ULCI) .— 1♀, Fuerteventura, Jandia, Morro de Cavadero , 700 m, 4.I.90., leg. M.Báez, H.Enghoff, #2631 (slide: Bo 139). ( ZMUC) .— 2♂, 5♀, 1L, Fuerteventura, Mt. Jandia (N Morro del Jable ), Morro del Cavadero , 700 m, 16.I.1995, leg. H.Bohn (slides: ♂, Ca 98/1,2; ♀, Ca 98/3) ; 4♂, 4♀; ex L: 2♂, 1♀, 6L, same data as holotype (slides: ♂, Ca 99/3,5; ♀, Ca 99/2). (C. Bohn , ZSM) .

Description. Size. Male. Length of tegmina 4.74–5.28 mm (mean: 4.93 mm), length of pronotum 1.98–2.14 mm (mean 2.05 mm). Female. Length of pronotum 2.18– 2,34 mm (mean 2.25 mm). N = 4–6.

Wings. Male. Tegmina long, almost reaching the abdominal end, apex asymmetrically rounded, with indistinct venation ( Fig. 19H ); hindwings reduced, but well set off, scarcely longer than metanotum. Female. Tegmina lobiform, rounded broadly triangular, slightly surpassing the mesonotum; hindwings missing ( Figs. 19I, N ).

Male structures. Tergites. T5-6 laterally at the anterior border with an extended but shallow excavation ( Figs. 19B, C ), mesally with a ventral deflection, especially strongly realized in the latter, thus forming a kind of a shallow gutter on the dorsal surface of the abdomen. T7 ( Figs. 18 F–H, 19D). Anterior border mesally produced, preglandular margin laterally very extended and well set off from the lateral parts of the anterior margin of T7, latero-posterior corners not produced, transversal ridge only partly indicated. Glandular pit large but shallow, extending over the mesal and anterior half of the tergite; bottom forming an anteriorly declining plane laterally and anteriorly bordered by a thin wall increasing in height towards anteriorly; bottom of pit mesally with a low longitudinal ridge, on both sides of the ridge at two different levels with a circular hole. Two separate anterior pouches present, consisting of branched tubes increasing in diameter towards their opening on both sides of the longitudinal ridge near the anterior border of the pit. Tubes near the opening interiorly with long bristles, with their straight and unspecialized tip partly reaching into the pit. Glandular pores in high density on the preglandular margin of T7 ( Fig.18G ), much less dense also on T9. Spatular bristles present on T3–7 ( Figs. 18E, J ). Posterior border of T10 mesally with a rather wide excavation ( Figs. 19G , 20 D ). S9 ( Fig. 19K ). Right latero-posterior corner produced, obliquely cut, left corner broadly rounded, posterior border in between slightly concave, left and right border almost parallel, the left slightly convex, the right slightly concave, towards the anterior lobe angularly produced. Hook ( Figs. 19J, L ). Apical end of shaft on the left with a rounded bump, trough rather deep, scarcely narrowing towards basally; neck short with a rather long well sclerotized ribbonlike velum; claw more or less regularly curved, with pointed tip; beak extremely long, occupying about half of the claw length, keel at the external margin of the claw heightened to a triangular sail.

Colouration. Variable. Male ( Figs. 19 A–G, H, M). Tegmina transparent, with a broad, towards the apex narrowing dark (brown) band, legs and antennae ochre, margins of thoracal nota transparent, remaining parts of nota either completely dark, or variously lightened to ochre, often a broad horseshoe-shaped dark marking remaining, or nota completely ochre; tergites usually completely dark, occasionally with only weak transversal lightenings at the level of the transversal ridge. Female ( Figs. 19I, N, O ). Tegmina transparent, posteriorly with a large dark marking, colouration of nota similar as in male, abdominal tergites anteriorly dark, posteriorly ochre, sternites dark with broad ochreous lateral margins.

Distribution. Restricted to the highest mountain of Fuerteventura (Mt. Jandia), situated on the Peninsula of Jandia in the SW of the island.

Figures

Fig. 18A–J. Male structures. A–D, I: Sulcoblatta obscura. A: T7 glandular pit and pouches, eo edge of pit opening, b bottom of pit, r ridge, bp branched pouch lobe, tp tailpipe of the latter, ps bag-shaped pouch lobe; B: left half of T6, f cuticular folds, e lateral edge, rg rain gutter below the edge, ml mesal limitation of the gutter, shining through; C: rain gutter in still higher enlargement, 90° turned anticlockwise; D: T6 with spatular bristles; I: apical part of hook, ve velum, PC. E–H, J: Macaroblatta dendroglandulosa. E: T4 with spatular bristles; F–H: anterior region of T7 with glandular structures, tg branches of right (F) or left (G) tubular gland, respectively, o site where the secretions of the glands enter the pit, b bottom of pit with four small holes (h), r longitudinal ridge, w wall bordering the pit anteriorly and laterally, pm preglandular margin with numerous glandular pores; J: spatular bristle of T6, SEM – Enlargements: Same scale for C–E,G and for F,H. – Identifications: A,C, D,I (Ma 189/1), B (Ma 189/13), E–G (Ca 99/1), H (slide: Bo 223), J (Ca 99/3).

Fig. 19A–Q. Outline of the structures of Macaroblatta dendroglandulosa. Male: A–H, J–M. A: T1–4; B: T5; C: T6, arrows in B,C point to a broad lateral excavation of the anterior margin of the tergite; D: T7, with a gland consisting of a pair of branched tubules (tg) and a broad shallow pit (between arrows) with four small holes (compare Fig. 18F); E: T8; F: T9; G: T10 with excavated posterior border (arrow), ap medio-anterior arm of left paraproct; H: left tegmen; J,L: hook, k keel along the external margin of the claw, t trough; K: S9, ea endophallic apodeme, cs cleft sclerite, R'3 sclerite, no scale sclerite present; M: pronotum and basal parts of tegmina. Female: I, N–Q. I: left tegmen; N: thoracal nota; O: T5; P: dorsal genital complex, bd, bv dorsal, ventral basivalvular sclerites, sp spermathcal sclerite; Q: ventral genital complex. – Enlargements: Same scale for A–G, for K,L, for N,O, and for P,Q. – Identifications: A–F,H (Ca 99/1), G,M (Ca 98/1), J,L (Ca 98/2), K (slide: Bo 223), I,O–Q (Ca 99/2), N (slide: Bo 139). Notice that colouration of tergites (A–F) – in vivo almost black – is rather strongly bleached during preparation.

Fig. 20A–L. Male structures of Macaroblatta species. A,B: T7 with gland structures of M. cf. infumata (A) and M. brullei (B), p pouch, pi pit structures, pm preglandular margin. C–F: posterior part of T10, ventral view, notice different shape of posterior margin, with knoblike processes (arrows) and/or excavations; C: M. brullei, D: M. dendroglandulosa, E: M. spec. B, from Gomera, F: M. pallidula. G,H: S9, no scale sclerites present, aa anterior apodeme, the unusual shortness of the right one in H is an artefact possibly caused by injury, ea endophallic apodeme, cs cleft sclerite, R'3 sclerite, s right stylus, arrows point the position of the reduced left stylus; G: M. spec. I, from Hierro, H: M. spec. E, from La Palma. I–L: hook, t trough, ve velum, LM pictures in K,L, PC pictures in I,J; I,K: M. brullei, L,J: M. cf. infumata. – Enlargements: Same scale in G,H. – Identifications: A,J,L (Md 8a/3), B (slide: Bo 150), C (slide: Bo 131), D (Ca 89/1), E (Ca 20/1), F (Ca 22/1), G (Ca 56/1), H (Ca 41/4), I,K (Ca 10/1).