Pasiphila rectangulata (Linnaeus)

Schmidt, Olga, 2020, The structure and musculature of male terminalia in the Palaearctic and Indo- Australian species of the eupitheciine genera Eupithecia Curtis, Gymnoscelis Mabille, and Pasiphila Meyrick (Lepidoptera: Geometridae: Larentiinae), Zootaxa 4896 (2), pp. 224-238 : 233

Pasiphila rectangulata (Linnaeus)

( Figs 11–12 )

The uncus is almost completely reduced, with its apical margin fused with the fine membranous, apically narrowing furrow on the dorsal side of the elongated membranous anal tube bearing a weakly setose subscaphium on the ventral surface. The tegumen is cupola-shaped, shorter than the vinculum. The muscles m1 are short, attached to the medio-lateral parts of the tegumen and run to the base of the reduced uncus. There are muscles attached dorsally in the distal area of the tegumen appearing similar to m1, but they run to the eighth abdominal segment. The muscles m2(10) run inside the anal tube. The ventral part of the tegumen is narrow and attached to the distal curve of the vinculum. The small muscles m3(2) connect the narrow ventral part of the tegumen to the most lateral part of the transtilla, close to the basal process of the costa valvae. The apices of the thin labides are not fused medially, the anterior arms of the labides run towards the juxta, and the base of the posterior arms is connected to the basal process of the costa valvae. The transtilla is band-like, shifted to the dorsal part of the armature and connected not only to the basal process of the costa valvae but also to the base of the posterior arm of the labides. The relatively long muscles m4 extend from the dorsal parts of the vinculum to the latero-medial parts of the transtilla. The muscles m5(7) connect the rather broad area close to the base of the costa valvae with the sacculus, whereas one bundle is connected to the vinculum, close to the saccus. The juxta is narrowed medially, the rather short, curved muscles m8(3) are attached to the medial area of the juxta and extend to the upper part of the saccus, close to the ventral margin of the juxta. The small sacs of coremata with long hairs are present at the lateral margin of the vinculum, close to the saccus. The aedeagus is rather short, with two horn-like spines of the anellus, with the rather large muscles m6(5) extending from the medial parts of the vinculum to the basal process of the aedeagus. The slightly curved but not twisted muscles m7(6) connect the ventral margin of the saccus with the distal part of the aedeagus.

Figures

FIGURES 11–12. Pasiphila rectangulata, male genitalia and muscles: 11. Armature (left valva partly removed, proximal part of the muscles m2(10) not shown). 12. Aedeagus.