Dziriblatta (Dziriblatta) brevisacculata Bohn 2021, spec. nov.
Creators: name: Bohn, Horst
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Ectobiidae
Dziriblatta
Dziriblatta brevisacculata

description: 2. Dziriblatta (Dziriblatta) brevisacculata, spec. nov.
Figs. 2E, I, 3D–G, 4A–J, 5A–C, 27, 28, 29
Etymology. The species name refers to the short (Latin: brevis) pouch (Latin: saccus) lobes of the T7 gland of males, when compared to Dz. (Dz.) bolivari.
Material studied. Type material. SPAIN. Holotype, ♂, Prov. Málaga, Sierra Bermeja, btw. Mt. Reales & Pto. de Peñas Blancas, 1400 m, 4.V.1990, leg. B. & H.Bohn (completely on two slides: Sp 193a/2). (MNMS).
Additional material. SPAIN. 3♂, 2♀, 1O, Prov. Málaga, Serranía de Ronda, Cortijo de Montero (10 km SSW Ronda), 1000 m, 5.IV.1990, leg. B. & H.Bohn (slides: 3♂, Sp 186a/5,8,9); Prov. Málaga, Sierra Bermeja, btw. Estepona & Pto. de Peñas Blancas, 600 m: 3♂, 17♀, 1. V.1997 leg. B. & H.Bohn (slides: 3♂, Sp 192a/1-3) / 1♀, 23.III.2000, leg. T. Knebelsberger (Sp 192b); same locality and collectors as holotype: 2♀, 7. VI.1989 (Sp 193) / 3♂, ex L: 1♀, 4. V.1990 (slides: 2♂, Sp 193a/3,4) / 6♂, 10♀, 1L, 1. V.1997 (slides: 3♂, Sp 193b/1-3); 9♂, 13♀, 2O, Prov. Málaga, 4.5 km E Villanueva de Cauche (30 km N Málaga), 900 m, 30.IV.1997, leg. B. & H.Bohn (slides: 6♂, Sp 457/1–6); 14♂, 24♀, 1L, Prov. Málaga, btw. Ganeín & Algotocín (31 km SW Ronda), 750 m, 1. V.1997, leg. B. & H.Bohn (slides: 4♂, Sp 458/1–4); 1♂, Prov. Malaga, Serranía de Ronda, btw. Benadalid & Atajate (ca. 20 km SW Ronda), 750 m, 23.III.2000, leg. T. Knebelsberger (slide: ♂, Sp 488/1). (Coll. Bohn, ZSM).
Description. Size. Length of pronotum in holotype 2.18 mm, relative length of pouch lobes of T7 gland 58– 75% (mean 69.8%) (N22, Table 2).
Male structures. T7 gland similar to the preceding species, but pouch lobes much shorter; shape of pouch lobes very variable, mostly obtusely conical, with broadly rounded tip (Figs. 3E, F, 4D, 5A–C), rarely with a more narrowly rounded tip (Fig. 3D); long pit bristles not as strictly straight as in Dz. (Dz.) bolivari, at least tips slightly curved, and their bundles less dense, short pit bristles often rather strongly curled (Figs. 4F–H); lateral pit holes usually more deeply hollowed out, shape very variable, circular or more elongated, in the latter case often curved towards posteriorly (Figs. 5A–C). Glandular pores laterally on T2: present, but of variable number, mostly well developed (Fig. 2I) as in the preceding species, but partly as sparce as in the following two species (Figs. 2H, J).
Distribution. Spain, Andalusia, western part of the Cordillera Penibetica. One locality north of Malaga, other localities further west in the mountain ranges Serranía de Ronda and Sierra Bermeja, at elevations of 600–1400 m (Figs. 27, 28).
Remarks. Three of the 23 male specimens studied had pouch lobes with less broadly rounded tips, thus resembling Dz. (Dz.) bolivari in this respect and raising the question about how well the two species can be separated. However, all three specimens have very short pouch lobes (Sp 193a/4, Fig. 3D: 69%, Sp 457/1: 67%, Sp 457/6: 58%) with length values below the mean value (69.8%) of the specimens studied, confirming their affiliation to the new species. The use of the lobe length as a decisive criterion for the distinction of the two species appears justified since their ranges in this parameter, though rather near together, do not overlap. The rather strong differences in the colouration of the males also supports this assumption (see below).
There remains the need to treat one obviously aberrant specimen of the species (Sp 193a/1, Fig. 5A). It has an extremely long right pouch lobe (100%) with broadly rounded tip, its left lobe is slightly shorter and shows a kind of asymmetrical branching. The branching is interpreted to be the result of a severe developmental disturbance, which could also have influenced the development of the right lobe. The excessive length of the right lobe is, therefore, considered as an artifact and not included in the calculations concerning the length of the pouch lobes.
description: Published as part of Bohn, Horst, 2021, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) III. The species of the subgenus Dziriblatta, pp. 201-250 in Zootaxa 4964 (2) on page 204, DOI: 10.11646/zootaxa.4964.2.1, http://zenodo.org/record/4709177