Otiorhynchus GERMAR, 1822

Gosik, Rafał & Sprick, Peter, 2013, Morphology and identification of the pupae of several species of soil-dwelling broad-nosed weevils from Central Europe (Coleoptera, Curculionidae, Entiminae), Zootaxa 3731 (4), pp. 445-472 : 469

Key to the pupae of selected species of the genus Otiorhynchus GERMAR, 1822

(updated from Gosik & Sprick (2012))

Based on descriptions of: O. ovatus , O. rotundus , O. rugosostriatus (Scherf 1964) ; O. armadillo , O. aurifer , O. crataegi , O. meridionalis , O. porcatus , O. salicicola , O. sulcatus (Gosik & Sprick 2012) ; O. dieckmanni and O. tenebricosus form lugdunensis (present paper).

Included in this key are all available, sufficient descriptions (and/or detailed illustrations) of genera present in the Western Palaearctic region.

1. Apical setae (as1 and as2) almost of equal length............................................................. 2

- Apical seta (as1) more than 3 times shorter than as2 or absent................................................... 8

2. Rostrum, mouthparts and abdomen without setae............................ O. (Pocodalemes) crataegi Germar, 1824

- Setae on rostrum and abdomen well visible................................................................. 3

3. Rostrum with 2 pairs of setae............................................. O. (Pendragon) ovatus (Linnaeus, 1758)

- Rostrum with 3 pairs of setae............................................................................ 4

4. Os1 3 times shorter than vs or absent, body length (usually) over 9 mm .......... O. (Dorymerus) sulcatus (Fabricius, 1775)

- Orbital setae (os1) almost as big as vertical setae (vs), body length (usually) under 9 mm ............................. 5

5. Sos absent....................................................... O. (Zustalestus) rugosostriatus (Goeze, 1777)

- Superorbital setae (sos) present........................................................................... 6

6. Pls absent............................................................. O. (Proremus) rotundus Marseul, 1872

- Posterolateral setae (pls) present..........................................................................7

7. Body length under 5 mm. Head and rostrum with 2 pairs: pas1-2 and os1-2; pronotal setae different in shape and length............................................................................ O. (Lolatismus) porcatus (Herbst, 1795)

- Body length over 6 mm. Head and rostrum with a pair of pas1 and os1; all pronotal setae with curved apical parts, almost equal in length ( Fig. 40 )................................................ O. (Arammichnus) dieckmanni Magnano, 1979

8. Pseudocerci strongly curved out......................................... O. (Otiorhynchus) aurifer Boheman, 1843

- Pseudocerci curved inward............................................................................... 9

9. Ab. VII and VIII with 5 pairs of dorsal setae, almost equal in length, distributed along the posterior margin.............. 10

- Ab. VII and VIII with 6 pairs of dorsal setae, almost equal in length, distributed along the posterior margin............. 11

10. Macrosetae of head, rostrum and pronotum with curved apical parts; dorsal setae on abdominal segments I–VI very short, spine-like......................................................... .. O. (Otiorhynchus) salicicola Heyden, 1908

- Macrosetae of head, rostrum and pronotum straight (without curved apical parts); dorsal setae on abdominal segments I–VI elongate ( Figs 35–37 )................... O. (Otiorhynchus) tenebricosus (Herbst, 1784) form lugdunensis Boheman, 1843

11. Ocelli oval.......................................................... O. (Otiorhynchus) armadillo (Rossi, 1792)

- Ocelli narrow, reniform........................................... O. (Otiorhynchus) meridionalis Gyllenhal, 1834

Figures

FIGURES 38 – 41. Peritelus sphaeroides (pupa, habitus and chaetotaxy): 38 — ventral view of female; 39 — ventral view of male; 40 — dorsal view; 41 — lateral view (abbreviations: rs — rostral setae, pas — postantennal s., os — orbital s., vs — vertical s., as — apical s., ls — lateral s., ds — discal s., pls — posterolateral s., fes — femoral s., d — dorsal s., l — lateral s., v — ventral s., pcpseudocerci).

FIGURES 35 – 37. O. tenebricosus form lugdunensis (pupa, habitus and chaetotaxy): 35 — ventral view; 36 — dorsal view; 37 — lateral view (abbreviations: es — epistomal setae, mts — mandibular theca s., rs — rostral s., pas — postantennal s., os — orbital s., sos — superorbital s., vs — vertical s., as — apical s., ls — lateral s., ds — discal s., pls — posterolateral s., fes — femoral s., d — dorsal s., l — lateral s., v — ventral s., pc—pseudocerci).