Psammoblatta minuta ( Bey-Bienko, 1935 ) Bohn, 2024

Bohn, Horst, 2024, The spine armament of the legs as an important means for the characterisation of the genera of Corydiinae and their relationships (Blattodea, Corydiidae), Zootaxa 5482 (1), pp. 1-79 : 38

No. 41. Psammoblatta minuta ( Bey-Bienko, 1935) , comb. nov. Figs. 3B , 13H,G

Heterogamodes minuta Bey-Bienko, 1935: 128 , figs. 7–9.

Arenivaga (Psammoblatta) minuta : Bey-Bienko 1950: 313; Princis 1962: 63.

Malecharacters. Wings:tegminawithoutsubcostalobe.—Tibiaarmament:ofthetypespecimen[1.8.0][7.7.1][11.7.5], dorsal spines of hindtibia fairly evenly distributed. Bey-Bienko obviously observed some variability in the armament of the hindtibia among the three specimens he studied; his formula [1.8.0][7.7.1][10–11.7.4–5] is taken over in Tab. 1 .—Tarsal arolia: absent.—Subgenital plate: Fig. 13G .—Right phallomere: Figs. 3B , 13H .

Female: Bey-Bienko 1935, 129.

Material studied: Type, 1♂, Turkmenistan, Vicinity of Ashkhabad , 23.IX.1930 (prep.: Bo 1400). (M. St. Petersburg) .

Figures

FIGURE 3. The right phallomere and its parts. A: Complete right phallomere of Type 1 in standard view, seen from the left (inner face) towards the right (outer face); the position of the other two axes of the body are indicated by the labels ant(erior)— post(erior) and dors(al)—ventr(al). The three sclerites of the phallomere are R1M, R2, and R3. The largest dent of R2 is called main dent (MD), in this case stepped in two etages, upper etage (ue). R1M with a tubercular ridge (tr), the two arrows point to an edge where R1M and R2 articulate. B: Most posterior part of Type 6 phallomere in ventral view, showing the frontside of R1M and the backside of the main dent, with its vertical arm (va) in focus, the horizontal arm (ha) out of focus. C,D: Isolated R1M sclerite, with the sclerotised part (sc) at the left, in D (Type 1) with a tubercular ridge (tr), the membraneous part at the right, in C (Type 2) with a gutterlike deepening (g), arrows indicate where R1M articulates with R2. E–G. Phallomeres in ventral view showing the backside of the main dent, R1M with a ridge (r). E: Phallomere Type 1/2, r of R1M as in Type 2 without tubercular elevations, ue in outline rounded as in Type 1, but with a small lobelike projection (l) recalling the pointed tip of Type 2. F,G: Type 3 phallomeres, main dent with a deep incision (arrow).—Species: A: Heterogamisca arenarum, Type; B: Psammoblatta minuta, Type; C: Mollidentoblatta persica, Holotype; D: Heterogamisca longipilosa, Holotype; E: Atuberculoblatta intermedia, B 1416; F: Fissidentoblatta afghana, Paratype; G: F. polyphagella, Holotype.—Enlargements: Scale in B 0.1 mm, in all others 0.25 mm.

FIGURE 13. Subgenital plate (at the left, ventral view) and posterior part of the right phallomere (at the right, standard view) of male.—Species: A: Nymphrytria mirabilis, detail from Fig. 12G; B: Leiopteroblatta monodi, Holotype, in fairly ventral view; C,D: Psammoblatta livida. (C) Bo 1334; (D) Bo 1395; E,F: P. longipes, Holotype, Bo 1422; G,H: P. minuta, Type, Bo 1400.— Phallomere types: B: Type 5b; D,F,H: Type 6.—Explanations: R1M, R2, R3 sclerites of the right phallomere, MD main dent of R2, not stepped, in D, F appearing divided by a short incision between its horizontal (ha) and vertical arm (va).—Enlargements: Scale in B 0.1 mm, in all others 0.25 mm.