Mesopsallus Wagner, 1970

Konstantinov, Fedor V., 2023, Plant bugs with swollen antennae: a morphology-based phylogenetic analysis of Heterocapillus Wagner, 1960 and related genera (Hemiptera: Miridae: Phylinae), Arthropod Systematics & amp; Phylogeny 81, pp. 845-879 : 845

5.9. Mesopsallus Wagner, 1970 stat. nov.

Figs 3E, F , 5J-M , 6D-F , 7A, D, E, G, I , 9 F-N , 12A

Mesopsallus Wagner, 1970: 302 (as a subgenus of Psallus )

Type species.

Lygaeus ambiguus ( Fallén, 1807)

Diagnosis.

Recognized by the following combination of characters: dorsum with apically serrate or acuminate silver scales and simple setae (Fig. 6D-F ); vesica J-shaped, formed by two straps separated by membrane (Fig. 9F-N ); secondary gonopore large, round, and distinctly sculptured, located almost at the apex of the vesica; apical blade of vesica short and straight; dorsal labiate plate with distinctly elongate, apically rounded sclerotized rings (Fig. 12A ).

Most similar to many Psallus spp. in the general appearance, body proportions, and vestiture composed of a mixture of whitish scalelike setae and simple setae but differing from that genus in the vesica structure.

Species composition.

Mesopsallus ambiguus ( Fallén, 1807) - broadly distributed in Europe, East to Komi and Bashkortostan republics of Russia, South to Turkey, Transcaucasia, and Northern Iran.

Mesopsallus amygdali (Wagner, 1960) comb. nov. - Iran.

Mesopsallus fagi (Drapolyuk, 1990) comb. nov. - Azerbaijan.

Mesopsallus holomelas (Reuter, 1906) - Sichuan, China.

Mesopsallus mali ( Meyer-Dür, 1843) comb. nov. - Europe, East to Nizhegorod Prov. and Bashkortostan Rep. of Russia, South to Israel, Turkey, Transcaucasia, and Northern Iran.

Mesopsallus pici (Reuter, 1899) comb. nov. - Morocco, Algeria, Tunisia.

Mesopsallus rhodani (Fieber, 1861) comb. nov. - From Germany, France and Italy in the West to Ukraine, Romania and Turkey in the East.

Mesopsallus samdzijonicus (Josifov, 1983) - North Korea.

Mesopsallus tibialis (Reuter, 1894) - Spain.

Mesopsallus validus (Reuter, 1901) comb. nov. - Algeria.

Figures

Figure 3. Dorsal habitus of species included in the phylogenetic analysis. A Atractotomus amygdali ♂; B A. rhodani ♂; C A. magnicornis ♂; D A. magnicornis ♀; E Mesopsallus mali ♂; F M. mali ♀; G Salicarus genistae ♂; H S. genistae ♀; I Heterocapillus tigripes ♂; J H. tigripes ♀; K Salicarus cavinotum ♂; L S. cavinotum ♀; M Mesopsallus pici ♀; N Mesopsallius ambiguus ♂; O Atractotomus parvulus, holotype ♀; P Atractotomus parvulus ♂, a specimen described as a male of Heterocapillus schmiedeknechti (Wagner 1973 a). Scale bar in A valid for all pictures.

Figure 5. Head and pronotum in dorsal view. A Campylomma pusillum ♂; B Campylomma atlanticum ♂; C Lobicris basalis ♀; D Salicarus roseri ♀; E S. roseri ♂; F Psallus (Phylidea) validicornis ♂; G P. (P.) validicornis ♀; H Heterocapillus tigripes ♂; I H. tigripes ♀; J Mesopsallus amygdali ♂; K M. amygdali ♀; L Mesopsallus pici ♀; M Salicarus nitidus ♂; N S. nitidus ♀; O Abietocapsus dissimilis ♂; P A. dissimilis ♀.

Figure 6. Vestiture. A - F Hemelytron in dorsal view: A Salicarus halimodendri ♂; B Abietocapsus dissimilis ♂; C Heterocapillus genistae ♀; D Mesopsallus ambiguus ♂; E Mesopsallus mali ♂; F Mesopsallus pici ♀. G - H Head and pronotum in lateral view: G Heterocapillus tigripes ♂; H Salicarus perpusillus ♂.

Figure. 7. SEM images of selected structures. A Mesopsallus ambiguus, head and pronotum in lateral view ♂; B Salicarus roseri, head and pronotum in lateral view ♂; C Mesopsallus ambiguus, head in lateral view ♂; D Mesopsallus ambiguus, abdomen in lateral view ♂; E Mesopsallus ambiguus, vestiture of hemelytron ♂; F Salicarus fulvicornis, vestiture of hemelytron ♂; G Mesopsallus ambiguus, metathoracic pretarsus in lateral view ♂; H Salicarus fulvicornis, metathoracic claw in lateral view ♂; I Mesopsallus mali, metathoracic pretarsus in lateral view ♀; J Lobicris basalis, metathoracic preatrsus in lateral view ♂; K Salicarus roseri, metathoracic pretarsus in lateral view ♀; L Heterocapillus tigripes, metathoracic pretarsus in ventral view ♂.

Figure 9. Male genitalia. A - E Psallus (Phylidea) validicornis, vesica: A apex of vesica in lateral view, magnified, B - C: vesica in ventral and lateral views. D, E: holotype of P. (Psallus P.) Psallus niger, vesica in ventral and lateral views. F - N: vesica of Mesopsallus spp: F M. ambiguus; G - H M. mali in lateral and ventral views; I, J M. rhodani in left and right lateral views; K, L M. pici in lateral and ventral views; M, N M. amygdali in lateral and ventral views. O, P Psallus (Phylidea) validicornis, holotype of P. niger: O right paramere, P apex of phallotheca. Q - T Salicarus spp., vesica in lateral view: Q S. cavinotum; R S. nitidus; S S. genistae; T S. perpusillus.

Figure 12. Female genitalia. A Mesopsallus ambiguus, vestibulum. B Psallus (Phylidea) validicornis, dorsal labiate plate. C Salicarus genistae, vestibulum. D-F Salicarus roseri: D dorsal labiate plate; E sclerotized ring, magnified; F vestibulum.