Clypeolus signatus (Broun), 1982

Brown, Samuel D. J., Leschen, Richard A. B. & Groenteman, Ronny, 2025, A new species of the New Zealand endemic weevil genus Clypeolus Broun (Coleoptera: Curculionidae: Cryptorhynchinae), found attacking an invasive weed, white horehound (Marrubium vulgare L. Lamiales: Lamiaceae), Zootaxa 5717 (4), pp. 544-570 : 562

Clypeolus signatus (Broun)

( Figures 69–77 )

Acalles signatus Broun, 1880: 491 (non Blanchard, 1851: 411). Type locality: Auckland .

Clypeolus signatus (Broun) Kuschel, 1982: 276 .

= Acalles xanthostictus Broun, 1893: 1237 (Synonymised by Kuschel, 1982: 276). Type locality: Mokohinau Islands .

= Acalles flynni Broun, 1914a: 131 (Synonymised by Kuschel, 1982: 276). Type locality: Great Barrier Island .

Diagnosis: Dorsum with abundant erect narrow setae in addition to appressed scales; fascicles absent. Lateral pale patches often strongly contrasting against darker-coloured scales surrounding it, but colour highly variable, including through age, wear and cleanliness. Conspicuous bright macula at apex of elytra around the junction of interstriae 5 and 8 almost always visible. Femoral teeth minute.

Distribution: North Island: ND (including the Poor Knights Is and Mokohinau Is), AK (including Noises Is, Waiheke I., Tiritiri Matangi I.), CL (Including Little Barrier I., Mercury Is, Ohena Is), BP.

Remarks: Specimens of this species have been collected from leaf litter and pitfall traps. It was collected frequently in Lynfield, Auckland, where an association with sedges was noted ( Kuschel 1990), with specimens being reared from the decaying culms of tatangi ( Gahnia lacera ).

Figures

FIGURES 69–77. Clypeolus signatus (Broun), type specimens of synonyms. Acalles signatus Broun, 1880, holotype: 69, dorsal view; 70, lateral view; 71, labels. Acalles xanthostictus Broun, 1893, lectotype: 72, dorsal view; 73, lateral view; 74, labels. Acalles flynni Broun, 1914, holotype: 75, dorsal view; 76, lateral view; 77, labels. Figures not at the same scale.