Cyllodini, Everts, 1898

Lawrence, John F. & Kirejtshuk, Alexander G., 2019, Review of the Australian Cyllodini (Coleoptera: Nitidulidae: Nitidulinae), with descriptions of new taxa, and notes on the genus Macleayania (Nitidulini), Zootaxa 4544 (3), pp. 301-334 : 305

publication ID

https://doi.org/10.11646/zootaxa.4544.3.1

publication LSID

lsid:zoobank.org:pub:051BB1F9-4EA6-421E-BA90-933A50547076

DOI

https://doi.org/10.5281/zenodo.5930232

persistent identifier

https://treatment.plazi.org/id/039987F0-F752-8044-52F0-FF1DDC82CAB6

treatment provided by

Plazi

scientific name

Cyllodini
status

 

Key to genera of Cyllodini occurring in Australia

1. Mesoventrite with anterior edge strongly oblique, almost vertical, so that most of its surface, including a median carina, is higher (in ventral view, projecting towards the observer) than mesocoxae or metaventrite; metanepisternum less than 3× as long as wide and more or less parallel-sided; mandibular apex unidentate and simple (without serrations or spines); pronotum at least slightly wider than combined elytra ( Figs 1, 3 View FIGURES 1–11 ); elytra shorter than their combined widths; elytral punctures not forming distinct rows; length at least 4.5 mm; gonocoxites narrowly elongate, parallel-sided and subcontiguous, with distinct, elongate, parallel-sided, apical gonostyli ( Fig. 59 View FIGURES 59–69 ); northern NSW & southern QLD; associated with Opuntia cacti..................................................................................................... Camptodes Erichson

- Mesoventrite with anterior edge flat or weakly carinate and any change in elevation occurring only at posterior end; metanepisternum more than 3.5× as long as wide and distinctly narrowed posteriorly ( Fig. 14 View FIGURES 12–23 ); pronotum not wider than combined elytra ( Figs 2, 4 View FIGURES 1–11 ); mandibular apex, IF unidentate, THEN armed with serrations or spines; IF length greater than 4 mm, elytra distinctly longer than wide; ovipositor never with elongate, parallel-sided, apical gonostyli; associated with various fungi..... 2

2 (1). Labrum wider than clypeus, consisting of a pair of diverging, rounded lobes flanking a deep notch widest at its opening, narrowing posteriorly and almost reaching the labral base; outer apical angle of protibia with distinct tooth; length always greater than 3.5 mm; associated with the fruiting bodies of Phallales ................................. Gymnocychramus Lea

- Labrum never as above, widest at base and not wider than clypeus, its apex usually with small median cleft with parallel sides; outer apical angle of protibia without distinct tooth; length never greater than 3.5 mm; associated with the non-woody fruiting bodies of Basidiomycetes (mushrooms).................................................................... 3

3 (2). Mesoventrite with anterior edge on a distinctly different plane than metaventrite, its posterior end more or less vertical and emarginate forming a pair of mesothoracic lobes flanking the truncate anterior edge of metaventrite and visible in ventral view ( Figs 50–51 View FIGURES 50–58 ); posterior edges of mesocoxal cavities not joined by curved line extending across anterior process of metaventrite.................................................................................................... 4

- Mesoventrite with anterior edge on the same plane as or a slightly different plane than metaventrite, its posterior end emarginate but horizontal or only slightly oblique ( Figs 52–53 View FIGURES 50–58 ); posterior edges of mesocoxal cavities joined by curved line extending across anterior process of metaventrite ( Figs. 52–53 View FIGURES 50–58 ).......................................................... 5

4(3). Upper portion of body strongly convex ( Fig. 10 View FIGURES 1–11 ); lateral margins of elytra not visible from above ( Fig. 2 View FIGURES 1–11 ); frontoclypeal suture absent; vertexal line present at sides; mandible unidentate with dorsal and ventral serrations; all basal tarsomeres lobed; abdominal ventrite 1 without postcoxal lines.................................................. Cyllodes Erichson

- Upper portion of body only slightly convex ( Fig. 9 View FIGURES 1–11 ); lateral margins of elytra visible for their entire lengths from above ( Fig. 5 View FIGURES 1–11 ); frontoclypeal suture present (sometimes weakly indicated externally); vertexal line absent; mandible bidentate with dorsal lobe serrate; no basal tarsomeres lobed; abdominal ventrite 1 with postcoxal lines................ Cyllopallodes , gen. nov.

5(3). Prosternum in front of coxa very short, less than 0.3× as long as mid length of a coxal cavity; mesal portion of prosternum with median carina extending beyond middle of prosternal process; anterior portion of mesoventrite ( Fig. 52 View FIGURES 50–58 ) with a pair of procoxal rests divided by a pair of posteriorly diverging carinae; metaventrite with short discrimen; axillary spaces absent; outer edge of mesotibia ( Fig. 56 View FIGURES 50–58 ) evenly curved and usuallly widest just beyond middle; ovipositor ( Fig. 43 View FIGURES 43–49 ) with broadly truncate apex.............................................................................. Coxollodes Kirejtshuk

- Prosternum about 0.5× as long as mid length of coxal cavity, without or with weak median carina and sometimes with acute anterior projection; anterior portion of mesoventrite ( Fig. 53 View FIGURES 50–58 ) with short longitudinal carina and no procoxal rests; metaventrite without discrimen; axillary spaces ( Fig. 54 View FIGURES 50–58 ) usually well developed; outer edge of mesotibia in Australian species ( Figs 57–58 View FIGURES 50–58 ) subapically angulate; ovipositor with acute apex ( Figs 48–49 View FIGURES 43–49 ).................................... Pallodes Erichson

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera