Ergaula cf. capensis (Saussure, 1893)

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 : 45

Ergaula cf. capensis

Figs. 1A,B , 16C,D , 19G

Male characters. Wings: fully developed, tegmina with subcosta lobe; right tegmen specialised, without sharp edge at the borderline between the two differently structured areas, Fig. 19G .—Femur armament: femora of all legs with an apical spine.—Tibia armament: [3.6.1][7.6.3][10–11.6.5], Figs. 1A,B .—Subgenital plate: anterior apodemes inconspicuous, strong bristles on posterior half of the plate, with rather long styli, Fig. 16D .—Supraanal plate: short, rounded trapezoidal, indicated bilobed, Fig. 16C .—Cercal tricholiths: 1–3 per anulus, Fig. 18G .

Female: Wings variosly shortend, tegmina more strongly sclerotised than in the male, but otherwise similarly specialised.

Material studied: 1♂, Ethiopia, near Negele borana, Sidamo, 25.–27.IV.98, Werner leg. (prep. Bo 1179) ; 1 ♂, Kenya, near Voi , 28.–30.XI.1997, leg. Werner & Lizler (prep. Bo 1185) ; 1♂, N.- Rhodesia, Ndola , 1.XI.63., Hausmann (prep.: Bo 1178) ; 1♂, Tanzania, near Same , 11.XII.94, leg. Werner (prep.: Bo 1183) ; 3♂, Zambia, near Kabwe (Broken Hill), 10.XII.2001, leg. Werner & Lizler ; 1♂, Zambia, NW Prov., near Kabompo , 4.–7.XII.2001, leg. Werner ; 1♂, Zambia, NW Prov., near Mwinilunga , 120 km to Kabompo, leg. Werner & SMRZ; Zambia, near Monze , 11.XII.2001, leg. Werner & Lizler (prep.: Bo 1184) . ( ZSM).

Remarks. The specimens studied belong at least to two different species. So far, only E. capensis is known from Africa. An exact determination was not possible without type material. Comparison with some Oriental specimens did not show differences in the characters listed above.

Figures

FIGURE 1. Tibia and femur armament.A: Left fronttibia of Ergaula, view from distally on the posterio-ventral surface. Apical whorl (ap) with six spines (arabic numerals); notice the large gap between spines nos. 6 and 1. More proximal spines: One on the ventral (ve), three on the dorsal surface (do, Roman numerals, no. III partly hidden). B: Left midtibia of Ergaula in dorsoanterior view. Apical whorl with six spines in two well separated groups of three. More proximal spines: six on the dorsal and three on the ventral surface (not numbered). C: Apical half of the left midtibia of Polyphaga aegyptiaca in anterio-ventral view. Apical whorl with seven spines. Spine no. 7 is inserted ventrally close to spine no. 1. D,E: Left fronttibia (Ti) and -femur (Fe) of Polyphaga pellucida in anterio-dorsal (D) and posterio-dorsal view (E). Apical whorl with eight spines forming a continuous, curved row, with increasing distance from the apical margin between spine nos. 4 and 7, and turning back with no. 8. More proximal spines: One dorsal spine present. F: Left fronttibia of Polyphaga aegyptiaca in posterio-dorsal view.Apical whorl with seven spines in similar arrangement as in E. More proximal spines: Two dorsal spines present. G,H: Suggested homologisation of the spines forming the apical whorls of the fronttibia in the species P. pellucida (E) and P. aegyptiaca (F) with those of Ergaula (A). The additional spines (nos. I and II in G, or only no. II in F) are recruited from the dorsal series and inserted between nos. 5 and 6 of the apical whorl. Homologous pairs in whorls with 8 spines, E/G: 6/II, 7/I, 8/6; whorls with 7 spines, F/ H: 6/II, 7/6. I: Right fronttibia and -femur of Ergaula, ventral view, arrow points to the apical spine of the femur.—Explanation: The arrow in B and F points to the distad projecting edge of the apical margin of the tibia, immediately dorsally of spine no. 3.—Enlargements: Scale 0.5 mm.

FIGURE 16. Supraanal plate with praprocts (at the left, dorsal view) and subgenital plate (at the right, ventral view) of male.— Species: A,B: Homoeogamia mexicana, Bo 1181; C,D: Ergaula cf. capensis, Bo 1185; E,F: Therea cf. petiveriana, Bo 1377; G,H: Eucorydia dasytoides, Bo 1390.—Abbreviations: c cercus, p paraproct, s stylus.—Enlargements: Scale 1mm.

FIGURE 18. Cerci of male with tricholiths, ventral view.—Species: A: Euthyrrhapha pacifica, Cap Verden, Cv 35/7; B: Tiviella inconspicua, Bo 612; C: Homoeogamia mexicana, Bo 1180; D: Polyphagina algerica, Bo 1376; E: Arenivaga bolliana, Bo 1407; F: Eremoblatta subdiaphana, Bo 1415; G: Ergaula cf. capensis, Bo 1185; H: Therea cf. petiveriana Bo 1378; I: Polyphaga aegyptiaca, from Lesbos, ex. cult.; J: Anisogamia tamerlana, Bo 1401; K: Psammoblatta livida, Bo 1334.—Number of tricholiths per anulus: A: one or two (at the base few anuli); B–F: two; G,H: three; I–K: more than five.—Enlargements: Scale in B 0.1 mm, in all others 0.25 mm.

FIGURE 19. A–C. Cerci of male with tricholiths, ventral view, all species with more than five sensilla per anulus.—Species: A: Eupolyphaga spec. 2, Bo 1367; B: Heterogamisca bolivari, Syntype, Bo 1356; C: Mononychoblatta semenovi, Bo 1391; D: Heterogamisca cerverae, Bo 1404.—E–H. Right tegmen with specialisation for the fixation of the left tegmen at rest.— Species: E: Eucorydia dasytoides, from Formosa, Kosempo; F: Therea cf. petiveriana, from S-India, Shevaroy Hills; G: Ergaula cf. capenesis; H: Homoeogamia mexicana. The arrows pointto the positions where the borderline between the two different areas crosses the anal furrow; the whitish patches along the borderline in E are especially shiny parts of the specialised surface;af anal furrow; sa specialised area; us unspecialised area.—Enlargements: Scale 2.5 mm.