Podistra Motschulsky, 1839

KAZANTSEV, SERGEY V., 2023, Do the Palaearctic subgenera of Podistra Motschulsky, 1839 really occur in North America: description of P. (Pidostria), subgen. nov. (Coleoptera: Cantharidae), Zootaxa 5263 (3), pp. 389-400 : 396

Key to the subgenera of Podistra Motschulsky, 1839

1. - Ultimate maxillary and ultimate labial palpomeres relatively small, labial palpomere about as long as wide ( Fig. 2A ); elytral pubescence dual ( Fig. 1A ); protarsal claw dent broad and oval, mesotarsal claw dent absent ( Figs 2C, D )................................................................................................... Pidostria subgen. nov.

- Ultimate maxillary and labial palpomeres prominent, both considerably longer than wide ( Fig. 2B ); elytral pubescence uniform ( Fig. 1B–F ); protarsal claw dent, if present, narrow; tarsal claw dents, if developed, present both in pro- and mesotarsus ( Figs 2F, G );............................................................................................. 2

2. - Laterophyses widened and flattened towards apex ( Figs 4E–F , 5B–D )................................ Podistra s. str.

- Laterophyses narrowed towards apex ( Figs 3E–F , 4A–D )..................................................... 3

3. - Anterior pro- and mesotarsal claws in male with a small narrow dent at base ( Figs 2C, D ); laterophyses with a swollen formation at apex ( Fig. 3G, F )............................................................................... Absidia

- All claws simple in both sexes; laterophyses apically not swollen ( Figs 4C, D ).......................... Hemipodistra

Figures

FIGURE 1. General appearance of Podistra species, males.A—P. (Pidostria) insipida; B—P. (Absidia) schoenherri (Moscow Oblast); C—P. (s. str.) alpina (Dagestan); D—P. (Hemipodistra) birnbacheri (Obir, Austria); E—P. (s. str.) unicolor (Abkhasia); F—P. (s. str.) prolixa (Morteratsch V., Switzerland). Scales 1.0 mm. (B, C and E from Kazantsev, 2022).

FIGURE 3. Aedeagi of Podistra. A–D—P. (Pidostria) insipida, ventral, dorsal, lateral and apical views (in D median piece removed); E–H—same, P. (Absidia) schoenherri. Scales 0.5 mm.

FIGURE 4. Aedeagi of Podistra. A–D—P. (Hemipodistra) birnbacheri, ventral, dorsal, lateral and ventro-apical views; E–H— same, P. (Pseudoabsidia) prolixa. Scales 0.5 mm.

FIGURE 5. Aedeagi and their details of Podistra. A—P. (Absidia) schoenherri, laterophyses; B – same, P. (s. str.) piceolineata; C, D—P. (s. str.) alpina, aedeagus, ventral and apical views; E, F—same, P. (s. str.) iugosa; G, H—same, P. (s. str.) belousovi; I, J—same, P. (s. str.) circassicola; K—P.(Pidostria) insipida, maxillary palp; L—same, labial palp; M—P. (Absidia) schoenherri, maxillary palp; N—same, labial palp. Scales 0.5 mm. (A, B from Kazantsev, 1998; C, D from Kazantsev, 2001; E–H from Kazantsev, 2010; I, J, from Ganglbauer, 1922)

FIGURE2. Detailsof Podistraspecies,males.A—P.(Pidostria) insipida,head,ventral view;B—same,P.(Absidia) schoenherri; C—P. (Pidostria) insipida, terminal tarsomeres of protarsus; D—same, of mesotarsus; E—same, of metatarsus; F—P. (Absidia) schoenherri, terminal tarsomeres of protarsus; G—same, of mesotarsus; H—same, of metatarsus; I—P. (s. str.) prolixa, lateral pronotal bordering; J—same, P. (s. str.) piceolineata; K—same, P. (s. str.) alpina.