Blatta aegyptiaca, (Linnaeus, 1758)

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 : 42

P. aegyptiaca (Linnaeus, 1758)

Tibia armament: [2.7.0][7.7.2][11.7.5] ( Fig. 1C,F ).

Material studied: Numerous ♂ from various regions.

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.