Strophosoma (Neliocarus) sus

Gosik, Rafal, Sprick, Peter & Czerewko, Katarzyna, 2017, Morphology of the larvae of three Central European Strophosoma Billberg, 1820 (Coleoptera, Curculionidae, Entiminae) species, Deutsche Entomologische Zeitschrift 64 (1), pp. 27-42 : 33-34

Strophosoma (Neliocarus) sus Figs 5, 6, 29-33, 34, 35-39, 43

Body.

Elongated, yellowish, abdominal segment VIII dark yellow. Setae medium long to very short. Each side of prothorax (Fig. 29) with 10 prns, two setae placed below spiracle. Meso- and metathorax (Fig. 29) each with one medium-length prs and 4 pds: first, second and fourth medium, third long. Each pedal area with 6 pda, variable in length. Eps1, 2 on abdominal segments I-VII different in length (Figs 29-31). Abd. segments I-VII each with 5 pds: first, second and fourth short, third and fifth very long. Abd. VIII with 4 pds and 2 very short ss1, 2 (Figs 31-33).

Head.

Dark yellow to dark brown, slightly flattened bilaterally (Fig. 34). Antennal basal membranous article with two basiconic sensillae (Fig. 35). Labrum (Fig. 36) approximately twice as wide as long; anterior margin slightly sinuate; als rod-shaped. Surface of epipharynx (between labral rods) densely covered by conical asperities. Labral rods strongly elongate. Clypeus (Fig. 35) 2.6 times as wide as long; anterior margin straight. Mandible (Fig. 37) with protruding cutting edge placed in the middle; mbs very short. Both maxillary palpomeres equal in length, but basal one wider than distal; maxilla with 6 dms and 4 vms, all capilliform (Fig. 39). Praelabium rounded, with a pair of relatively long ligs; basal and distal palpomeres almost equal in size and shape; pslb2 3 times longer than remaining pslb.