Review of the Australian Cyllodini (Coleoptera: Nitidulidae: Nitidulinae), with descriptions of new taxa, and notes on the genus Macleayania (Nitidulini) Author Lawrence, John F. Author Kirejtshuk, Alexander G. text Zootaxa 2019 2019-01-14 4544 3 301 334 journal article 27668 10.11646/zootaxa.4544.3.1 db9559f4-2f76-4e07-8ae5-03f0f8e5ad3a 1175-5326 2618373 051BB1F9-4EA6-421E-BA90-933A50547076 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 ); 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 ); 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 ); pronotum not wider than combined elytra ( Figs 2, 4 ); 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 ); 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 ); posterior edges of mesocoxal cavities joined by curved line extending across anterior process of metaventrite ( Figs. 52–53 ).......................................................... 5 4(3). Upper portion of body strongly convex ( Fig. 10 ); lateral margins of elytra not visible from above ( Fig. 2 ); 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 ); lateral margins of elytra visible for their entire lengths from above ( Fig. 5 ); 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 ) 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 ) evenly curved and usuallly widest just beyond middle; ovipositor ( Fig. 43 ) 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 ) with short longitudinal carina and no procoxal rests; metaventrite without discrimen; axillary spaces ( Fig. 54 ) usually well developed; outer edge of mesotibia in Australian species ( Figs 57–58 ) subapically angulate; ovipositor with acute apex ( Figs 48–49 ).................................... Pallodes Erichson