Patritiodemus brusai ( Dellape & Montemayor, 2009) Dellapé & Melo, 2022

Dellape, Pablo M. & Melo, Maria C., 2022, Four new species of Ischnodemus (Hemiptera, Heteroptera, Blissidae) and additional records from Argentina, Deutsche Entomologische Zeitschrift 69 (2), pp. 283-295 : 283

Patritiodemus brusai ( Dellape & Montemayor, 2009) comb. nov.

Lsid link.

http://lsid.speciesfile.org/urn:lsid:Lygaeoidea.speciesfile.org:TaxonName:491523.

Remarks.

Dellapé and Montemayor (2009) related Ischnodemus brusai with I. proprius Slater, 1966 and I. transitius Slater & Wilcox, 1969. These two species show a completely pruinose pronotum and large eyes and were interpreted by Slater and Wilcox (1969) as closely related species with obscure relationships with the rest of the species in the genus, being transitional with Patritiodemus species. The generic limits among these two genera are not clearly established. Slater and Ahmad (1969) described the genus Patritiodemus as closely allied to Ischnodemus , and some years later, Slater (1979), in analyzing the generic phylogenetic relationships, expressed that both Cavelerius Distant, 1903 and Patritiodemus could conceivably be included in Ischnodemus and that the establishment of Patritiodemus was possibly premature.

Additional phylogenetic studies will be necessary to better define the generic limits. The presence of pedunculate eyes, a short labium not attaining forecoxae, an entirely dull pronotum, and the color pattern of hemelytra with a dark suffusion along the central area in Patritiodemus brusai comb. nov. indicate that the genus Patritiodemus is the best placement for this species.