Heterogamodes (Heterogamisca) jeffreyana Bohn & Sciberras, 2021, 1929

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 : 23-24

No. 6. Heterogamodes (Heterogamisca) jeffreyana Bohn & Sciberras, 2021

Figs. 2B–D , 5C,D , 20B

Diagnosis. Very similar to H. longipilosa , distinguished by differences in shape and colouration of the tegmina and differences in leg structures.

Material studied. Holotype, 1♂, Maltese Archipelago, Gozo, Fungusrock, 8.IV.2006, leg. A, Sciberras (prep.: Bo 1328). ( ZSM).

Description of male. Size. Length of pronotum: 4.1 mm; length of tegmina: 14.5 mm.

Colouration. The animal is preserved in alcohol. Head with vertex dark brown, face lighter brown and further lightening towards the labrum. Pronotum as in H. bolivari , but colour of dark posterior area more uniform. Tegmina in the basal third and towards the anterior border almost transparent with distinct dark venation and darker marbling, in the more apical parts uniformly pale brownish; costalfield whitish transparent, dark brown stripe along the basal part of the subcosta, anal furrow transparent, considerably broadening towards its ending at the posterior border of the tegmen ( Fig. 20B ). Remaining body straw-coloured.

Head. Eyes and ocelli equidistant, distance equal to the diameter of the ocelli; interocellar depression in one plain turning over to the interantennal area; in the transition zone with a pair of very small but unusually deep foveolae.

Pronotum. Anterior border mesally with a distinct sinusoidal projection, lateral border moderately truncate, distinct only at the anterior corners.

Wings. Relatively short. Tegmina in the apical half considerably narrowing to a well rounded apex situated far anteriorly, anterior border in the apical two thirds rather straight; with about 19 veinal branches in the discoidal field ( Fig. 20B ).

Other characters. Hindfemora: along the ventral edges with numerous tiny spinules ( Fig. 2C,D ).—Tibia armament: [1.8.0][6.8. 1][9.7.4] 1, dorsal spines of hindtibia in two groups à 6 and 3, ventral spines in two groups à 2, spines of the proximal pair inserted immediately side by side; hindtibia proximally with rather short bristles ( Fig. 2B ), not reaching the length of the tibial spines.—Subgenital plate: Fig. 5C .—Right phallomere: Fig. 5D .

Female: unknown.

Figures

FIGURE 2. Leg structures. A–E: Distinguishing features between the species Heterogamisca longipilosa, Holotype: A, proximal part of left hindtibia, E left hindfemur, both mirror images,—and H. jeffreyana, Holotype: B, proximal part of right hindtibia, C right hindfemur, arrows delimit the area shown in higher enlargement in D. Notice the longer bristles on the tibia of H. longipilosa, and the tiny spinules along the anterio-ventral edge of the hindfemur in H. jeffreyana, which are missing in the other species. F: Right hindtibia of the female of Nymphrytria mirabilis (specimen from Erg er Raoui, view on the anterior surface), showing the row of five large spines along the ventral edge of the broadened tibia, row formed by four ventral (ve) and one apical spine (a). At the bottom parts of the leg from the other side are visible. G: Left midtibia of the same specimen (view on anterio-dorsal surface), the seven dorsal spines (do) arranged in two longitudinal rows, the row at the right is completed by one apical spine.—Further abbreviations: Fe femur, Ti tibia, Ta tarsus.—Enlargements: Scale in D 0.2 mm, in all others 0.5 mm.

FIGURE 5. Subgenital plate (at the left, ventral view) and posterior part of the right phallomere (at the right, standard view) of male.—Species: A,B: Heterogamisca longipilosa. (A) Holotype, Bo 1329; (B) Paratype, Bo 1358, dents of R2 sclerite isolated; C,D: H. jeffreyana, Holotype, Bo 1328; E,F: H. sulcata, Holotype, Bo 1417; G,H: Heterogamisca arenarum, Type, Bo 1430.— Phallomere type: Type 1 in all corresponding figures.—Explanations: R1M, R2, R3 sclerites of the right phallomere, MD main dent of R2, ue its upper etage; tr tubercular ridge.—Enlargements: Scale 0.25 mm.

FIGURE 20. Left tegmen of male.—Species: A: Heterogamisca adelungi, Holotype; B: H. jeffreyana, Holotype; C: H. bolivari, Syntype (same specimen as used for prep. Bo1359); D: H. bifoveolata, Lectotype; E: H. longipilosa, Holotype; F: H. brevipennis, Holotype; G: H. cerverae (same specimen as used for prep. Bo 1365). The tegmina are photographed from microscopical preparations with transmitted light; the black netlike markings in the costal field are in reallity intransparent whitish deposits.—Enlargements: Scale 3 mm, same for all figures.