Procas Stephens, 1831

Thompson, Richard T., 2006, A revision of the weevil genus Procas Stephens (Coleoptera: Curculionoidea: Erirhinidae), Zootaxa 1234 (1), pp. 1-63 : 11-13

publication ID	https://doi.org/ 10.11646/zootaxa.1234.1.1
publication LSID	lsid:zoobank.org:pub:8D608A41-09CD-4626-935E-26BF20AB7587
DOI	https://doi.org/10.5281/zenodo.5067080
persistent identifier	https://treatment.plazi.org/id/039787D5-FFBE-FFC0-1526-FA98BA78FDEE
treatment provided by	Felipe
scientific name	Procas Stephens, 1831
status

Treatment

Key to species of Procas Stephens, 1831

1 Antennal funicle segment 3 less than half as long as segment 1; elytra usually with 1–3 white spots at top of declivity; setae on female sternite 8 small (c. 0.03 mm long). NonEuropean ............................................................................................................... 2

Antennal funicle segment 3 at least half as long as segment 1; elytral declivity never with white spots; setae on female sternite 8 large (<0.1 mm long). Europe, North Africa, Middle East ....................................................................................................... 3

2 Antennal funicle segment 7 transverse; male sternite 8 with processes parallel or weakly diverging, merging with broad median column and often fused together in basal half or more of their lengths ( Figs 96–99 View FIGURES 86–99 ); female sternite 8 with pigmented area expanded apically (posteriorly)( Figs 41–43 View FIGURES 39–43 ); spematheca with glandlobe variable in shape, gland variable in size ( Figs 68–73 View FIGURES 65–73 ). North America ............................... lecontei

Antennal funicle segment 7 quadrate; male sternite 8 with processes elongate, strongly diverging, distinct from slender tapering median column ( Figs 92–95 View FIGURES 86–99 ); female sternite 8 with pigmented area expanded basally (anteriorly)( Figs 39, 40 View FIGURES 39–43 ); spermatheca with glandlobe usually tapering and weakly expanded at apex, gland small (c. 0.2 mm long)( Figs 65–67 View FIGURES 65–73 ). Russian Far East, Japan, NE China, Korea..................... biguttatus

3 Pronotum, on either side of midline, with a variable and ill defined area of low, setiferous granules, often obscured by their setae ( Figs 13, 14 View FIGURES 9–14 ); head usually with small frontal pit; antennal funicle segment 2 usually only slightly longer than 3; male sternite 8 with processes more or less curved ( Figs 83–85 View FIGURES 74–85 ); female sternite 8 with pigmented areas distinctly separate ( Figs 21–23 View FIGURES 21–26 ); spermatheca with glandlobe more or less cylindrical and slightly expanded at apex ( Figs 44–47 View FIGURES 44–50 ). (Scutellum often covered with white setae (appearing white); clothing setae rather coarse (sometimes markedly so).) United Kingdom, NW Spain ........................................................................ granulicollis

Pronotum more or less uniformly punctate on disc (sometimes with setiferous granules near sides)( Figs 11, 12 View FIGURES 9–14 ); head usually without a frontal pit; antennal funicle segment 2 usually distinctly longer than 3; male sternite 8 with processes more or less straight ( Figs 74–82 View FIGURES 74–85 ); female sternite 8 with pigmented areas fused or narrowly separated ( Figs 24–38 View FIGURES 21–26 View FIGURES 27–34 View FIGURES 35–38 ); spermatheca with glandlobe variable but not expanded at apex ........... 4

4 Rostrum finely and evenly punctate, seldom with any trace of a median carina but usually with a very fine linear carinula near apex ( Fig. 9 View FIGURES 9–14 ); sides of rostrum widening smoothly at antennal insertions (in dorsal view); elytral setae mostly very small and recumbent, with a few (sometimes very few) much larger scattered semierect white setae, especially on declivity; punctures on sides of prothorax (above fore coxae) and on metepisterna containing simple linear setae; male sternite 8 with short processes (<0.1 mm long)( Figs 88–91 View FIGURES 86–99 ); female sternite 8 broad, somewhat straightsided and angular anteriorly, spiculum broad ( Figs 35–38 View FIGURES 35–38 ). (Tibiae 2 and 3 with prominent circlet of white setae at base; spermatheca with glandlobe small, strongly reflexed ( Figs 59–64 View FIGURES 59–64 ).) North Africa, Atlantic and Mediterranean islands, Greece (?). ...................... ........................................................................................................................ armillatus

Rostrum with coarser, ovate punctures, their interspaces tending to form longitudinal rugulae, with a partial median carina but no preapical carinula ( Fig. 10 View FIGURES 9–14 ), sides widening somewhat abruptly at antennal insertions; elytral setae larger and more nearly uniform in size; setae in punctures on sides of prothorax and on metepisterna, in part, bifid or multifid; male sternite 8 with long processes (0.1–0.2 mm)( Figs 74–82 View FIGURES 74–85 , 86, 87 View FIGURES 86–99 ); female sternite 8 ovate, spiculum slender ( Figs 24–34 View FIGURES 21–26 View FIGURES 27–34 ) ........................................ 5

5 Male sternite 8 with processes strongly divergent (sometimes almost in a line), their pigmented elements close together at narrow apex of median column, which they enter ( Figs 86, 87 View FIGURES 86–99 ); spermatheca with glandlobe very strongly reflexed ( Fig. 48 View FIGURES 44–50 ). (Tibiae 2 and 3 with indistinct circlet of white setae at base.). Spain............................. michaelis

Male sternite 8 with processes usually less strongly divergent, their pigmented elements clearly separate at broad apex of median column, which they seldom enter ( Figs 74–82 View FIGURES 74–85 ); spermatheca with glandlobe only weakly reflexed ( Figs 51–58 View FIGURES 51–58 ).... [ picipes View in CoL ] 6

6 Tibiae 2 and 3 with distinct circlet of white setae at base, separated from pale clothing setae of tibia by a dark gap. W Europe ............................................................. p. picipes View in CoL

Tibiae 2 and 3 without, or with indistinct circlet of white setae at base ....................... 7

7 Tibiae 2 and 3 with indistinct circlet of white setae at base, separated from pale clothing setae of tibia by a dark gap. Ukraine, Caucasus, E Turkey....................... p. steveni

Tibiae 2 and 3 without any circlet of white setae at base, tibia more or less uniformly covered with pale brownishwhite setae (sometimes with dark area on dorsal edge of tibia, near base). Middle East, Kurdistan ....................................................p. levantinus