Calleida puncticollis

Casale, Achille & Shi, Hongliang, 2018, Revision of the Oriental species of Calleida Latreille (sensu lato). Part 1: Introduction, groups of species, and species of six species groups (Coleoptera: Carabidae: Lebiini), Zootaxa 4442 (1), pp. -1--1: 13

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Calleida puncticollis


2. Calleida puncticollis  species group

Diagnostic characters: With the character states of Calleida  (in the widest sense, see above), restricted or amplified as follows: small-sized species (L 6.8–8.2 mm). Head and pronotum brownish, elytra metallic green to cupreous, without reddish patch. Apical labial palpomeres markedly securiform in both male and female. Pronotal disc heavily punctate ( fig. 24 View Figure ). Abdominal sternum VII not notched at apex both in males and females ( figs. 3, 6 View Figure ), with eight setae in males, ten or more setae in females. Median lobe of aedeagus stout, endophallus without any chitinized copulatory pieces ( fig. 27 View Figure ).

Taxonomic note: Only one species, C. puncticollis  sp. n., is attributed to this group. This species is very rare in collections but recorded from several provinces in central and eastern China ( map 2 View Figure ). The systematic position of this species group is rather isolated in the Asiatic fauna because of the peculiar characters of endophallus.

The following peculiar characters isolate this group from all other known Asiatic Calleida  species known so far: abdominal sternum VII in male not notched, and endophallus without copulatory pieces. In all other Asiatic Calleida  , the male anal sternum is distinctly notched, and the endophallus has distinct chitinized copulatory pieces, composed of long flagellum or two short pieces. This is also the only Asiatic species with abdominal sternum VII with more than two apical setae in males (more than four in females) not included in the Calleida discoidalis  species group (see Key to the species groups), which will be treated in a separate contribution. However, the different external and male sexual characters mentioned above suggested that these two groups may not closely related at all.