Alexidia Reitter, 1880

Genus Alexidia Reitter, 1880 View in CoL

Figs 2M, O–P View Fig , 6–13 View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig

Alexidia Reitter, 1880: 43 View in CoL . Type species: Alexidia rogenhoferi Reitter, 1880 View in CoL ; by monotypy.

Alexidia View in CoL comprises four known species, all of them distributed in the Neotropical Region. Only A. plaumanni Löbl & Leschen, 2003a View in CoL is reported from Brazil (state of Santa Catarina). During my field trips, two species of Alexidia View in CoL were discovered and are described here: (1) A. convivalis sp. nov. represented by 19 specimens, and (2) A. solitaria sp. nov. represented by a single female. No more specimens belonging to this genus were collected.

General description

Body large, oval.

HEAD. Labral setae present. Mandible apically bidentate ( Fig. 7B–C View Fig ). Maxillary palp aciculate ( Fig. 7D View Fig ). Galea wide, with radulate brush ( Fig. 7D View Fig ). Inner and basal setae of lacinia absent ( Fig. 7D View Fig ). Setae on adoral surface of hypopharynx spinose ( Fig. 7E–F View Fig ). Last labial palpomere curved ( Fig. 7E–F View Fig ). Submaxillary ducts present ( Fig. 7G View Fig ). Gular suture not reaching submentum. Frontoclypeal suture present ( Figs 6H View Fig , 12E View Fig ). Antennomeres III and IV elongate; VII–X with a long basal stalk ( Figs 6J–K View Fig , 12F View Fig ).

PROTHORAX. Prothoracic corbiculum present ( Fig. 7L View Fig ). Hypomeron visible in lateral view; apex subacute and not extending beyond pronotum ( Figs 6B View Fig , 12B View Fig ).

MESOTHORAX. Mesoventral lines impunctate and connected to mesocoxal cavity ( Fig. 8D View Fig ). Median and secondary lines absent. Prepectus present. Scutellum concealed in dorsal view ( Fig. 8A–B View Fig ). Mesoventral process paxillate ( Fig. 8G View Fig ). Meso- and metaventrite not fused ( Fig. 8D View Fig ).

METATHORAX. Submesocoxal lines arcuate ( Figs 8F View Fig , 12D View Fig ). Metaventral setose patch absent ( Fig. 8E View Fig ). Intercoxal plates present.

WINGS. Elytra lacking apical serrations ( Figs 9H View Fig , 12H View Fig ); basal and lateral striae present ( Fig. 8A View Fig ).

LEGS. Profemoral ctenidium absent. Mesotibiae with a single inner apical spine ( Fig. 9E View Fig ).

ABDOMEN. Submetacoxal bead meeting in middle; punctate ( Fig. 8E View Fig ). Submetacoxal area absent.

MALES. Aedeagal sclerites tripartite ( Fig. 10E–J View Fig ) ( Löbl & Leschen 2003b; Leschen & Löbl 2005).