Eucinetus Germar, 1818

Lawrence, John F., 2019, New species of Eucinetus and Noteucinetus from Australia (Coleoptera: Scirtoidea: Eucinetidae), Zootaxa 4668 (2), pp. 151-182 : 155

publication ID	https://doi.org/ 10.11646/zootaxa.4668.2.1
publication LSID	lsid:zoobank.org:pub:DDEB92E2-3F1B-463F-B68C-4C3E282279FF
DOI	https://doi.org/10.5281/zenodo.5933589
persistent identifier	https://treatment.plazi.org/id/E52C87D7-3D3F-FF9D-FF74-4A51290AFA7C
treatment provided by	Plazi
scientific name	Eucinetus Germar, 1818
status

Treatment

Eucinetus Germar, 1818 View in CoL View at ENA

Eucinetus Germar 1818: 255 View in CoL . Type species: Scaphidium haemorrhoidale Germar, 1818 .

Hamaxobium Duftschmid 1825: 79 . Type species: Hamaxobium haemorrhoum Duftschmid, 1825 .

Apeosina Broun 1881: 692 . Type species: Apeosina stewarti Broun, 1881 .

Cryptomera Broun 1893: 1358 . Type species: Cryptomera nigra Broun, 1893 .

Diagnosis. Species of Eucinetus differ from those of Noteucinetus in the more elongate body with a somewhat less convex upper surface, elytra with transverse strigulae ( Figs 77–88 View FIGURES 73–88 ), slightly incrassate to subserrate antennae ( Figs 4, 10 View FIGURES 1–12 , 14, 18, 22 View FIGURES 13–23 , 25 View FIGURES 24–33 , 36 View FIGURES 34–51 ), lateral arms of metendosternite forming an angle of less than 45 degrees with apical muscle discs not circular ( Fig. 94 View FIGURES 89–103 ), prosternal process not widened apically, mesoventrite with slender cavity and notched posterior edge ( Fig. 101 View FIGURES 89–103 ), hind wings either fully developed or absent, sternite IX in male elongate with rounded apex and slender basal strut ( Figs 114–116 View FIGURES 104–118 ) and parameres as long as or slightly longer than penis ( Figs 128–139 View FIGURES 119–132 View FIGURES 133–148 ). The Holarctic genus Nycteus may be distinguished from both Eucinetus and Noteucinetus by the elongate head with antennal insertions and antennal grooves completely exposed, the U-shaped frontoclypeal suture and the anterolateral angle of the mesepimeron acute. In both Eucinetus and Noteucinetus , the head is much shorter and broader with antennal insertions and antennal grooves more or less concealed ( Figs 34–35 View FIGURES 34–51 ), the frontoclypeal suture is straight and transverse with a distinct angle at each end and the anterolateral angle of the mesepimeron is never sharply acute.

Note. Eucinetus is a widely distributed genus with 21 described species from North to South America, Eurasia, Africa, Sri Lanka, Malaysia and New Zealand; it is likely, however, that numerous other species remain to be described from various regions. The Australian fauna is diverse and only partially described in the present treatment. Four winged species are described here, although Eucinetus lorien and Eucinetus similis may represent geographic variants, and specimens of Eucinetus lorien from the type locality in NSW ( Figs 46 View FIGURES 34–51 , 58 View FIGURES 52–72 , 133 View FIGURES 133–148 ) differ slightly from those from northern QLD ( Figs 48 View FIGURES 34–51 , 57 View FIGURES 52–72 , 132 View FIGURES 119–132 ). There are almost certainly more wingless species to be described, especially from southern coastal and montane NSW, but these will have to await a more thorough study.