Cephaloleia impressa Uhmann, 1930

Sekerka, Lukáš, 2017, Taxonomic changes within Imatidiini and Hybosispini (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 351-380 : 360

Cephaloleia impressa Uhmann, 1930

( Figs 5–6 )

Cephalolia impressa Uhmann, 1930a: 36 (original description). Demothispa clermonti Pic, 1934: 2 (original description), syn. nov.

Type localities. Cephalolia impressa : ‘ Brasilien: Saõ Pauloʼ. Demothispa clermonti : ‘ Brésil: Hansaʼ.

Type material examined. Cephalolia impressa : HOLOTYPE: ♂, glued, ‘ SAÕ PAULO | BRAS. MRÁZ LGT. | MUS. PRAGENSE [w, p, cb, bf] || Collect. | Spaeth [w, p, cb] || HOLOTYPE [r, t, s] || Cephalolia | impressa n. sp. | Det.Uhmann 28.[w, hw by Uhmann, cb]ʼ ( NHMW). Demothispa clermonti : HOLOTYPE: ♂, glued, ‘Hansa | S.Catharina-Brésil | Coll.J.Clermont [w, p, s] || type [y, hw by Pic, s] || TYPE [r, p, cb] || Clermonti | n sp [w, hw by Pic, s]’ ( MNHN).

Remarks. Recently I had opportunity to compare types of Cephaloleia impressa ( Fig. 5 ) and Demothispa clermonti ( Fig. 6 ) and found that they are conspecific. The holotype of D. clermonti has slightly paler colouration thus its punctation appears coarser while the holotype of C. impressa has elytra deep pitch black and thus the punctation appears somewhat finer. Otherwise the two specimens have identical shape, size and proportions therefore I synonymize D. clermonti with C. impressa .

Cephaloleia impressa belongs to a peculiar species-group with two more species – C. basalis ( Weise, 1910) and C. jataiensis ( Pic, 1923) . All three share small size of body (length 3.5–4.1 mm), quite convex elytra with lateral constriction in the basal 1/3 of the disc, and minutely but distinctly serrate apico-lateral margins of elytra (at magnification 40×). Cephaloleia basalis and C. impressa share the same short shape and convexity of body while C. jataiensis is less convex and more elongate. All three species can be distinguished using the key below C. jataiensis .

Distribution. Brazil: Santa Catarina ( PIC 1934) and Saõ Paulo ( UHMANN 1930a).

Figures

Figs. 1–8. 1 – Cephaloleia apertura (Staines, 2013) (holotype, 4.3 mm); 2 – Cephaloleia atripes (Pic, 1926) (holotype, 5.1 mm); 3 – Cephaloleia fernandoi (Bondar, 1940) (paratype, LSPC, 6.3 mm); 4 – Cephaloleia opaca Baly, 1859 (Rio de Janeiro: Trinidad, LSPC, 6.0 mm); 5 – Cephaloleia impressa Uhmann, 1930 (holotype, 3.5 mm); 6 – Demothispa clermonti Pic, 1934 (holotype, 3.5 mm); 7 – Cephaloleia jataiensis (Pic, 1923) (holotype, 4.2 mm); 14 – Xenispa aeneipennis (Baly, 1859) (holotype, 3.7 mm).