ALEOCHARINAE Fleming, 1821

Lee, Seung-Gyu & Ahn, Kee-Jeong, 2017, A taxonomic study of Korean Aloconota Thomson (Coleoptera: Staphylinidae: Aleocharinae) with descriptions of five new species, Journal of Natural History 51 (25 - 26), pp. 1531-1556 : 1532-1533

Subfamily ALEOCHARINAE Fleming, 1821

Tribe GEOSTIBINI Seevers, 1978

Genus Aloconota Thomson, 1858

Aloconota Thomson, 1858: 33 (Type species: Tachyusa immunita Erichson, 1840 ). Glossola Fowler, 1888: 66 (Type species: Homalota gregaria Erichson, 1839a ).

Terasota Casey, 1906: 337 (Type species: Terasota brunneipes Casey, 1906 ).

Diagnosis

Members of the genus Aloconota can be distinguished from other aleocharine genera by the combination of the following characters: body parallel-sided; α- sensillum of epipharynx reduced; labium with ligula expanded, dilated basally, divided into two lobes at base; prementum with two medial setae widely separated, lateral pseudopores absent; twin pores of labial palpomere one small; pronotum more or less narrow basally, less than c.1.1 times as wide as long; mesocoxal cavities narrowly separated; mesoventral process pointed at apex; metatarsomere 1 longer than 2 or about as long as 2 and 3 combined; empodial seta distinctly longer than claw; abdominal tergites III – V impressed in basal region; most male tergite VII with tubercles; posterior margin of male tergite VIII modified, with process ( Cameron 1939; Benick and Lohse 1974; Yosii and Sawada 1976; Ashe 2001).

Distribution

Worldwide.

Key to Korean species of the genus Aloconota

1. Body large,> 3.5 mm ....................................................................................................................... 2

– Body small, <3.5 mm ....................................................................................................................... 3 2. Antennomeres 8 – 10 elongate ................................................................................... A. elongata

– Antennomeres 8 – 10 quadrate to subquadrate ................................................. A. sulcifrons

3. Body relatively convex, dark brown to black; pronotum ( Figure 7 (b)) longitudinally impressed in median region, pubescence directed posteriorly in midline ...................... ................................................................................................................................. A. impressa sp. nov.

– Body relatively flattened, reddish brown to dark brown; pronotum not impressed in median region, pubescence directed anteriorly in midline ............................................. 4

4. Antennomeres 8 – 10 slightly elongate ( Figures 3 (a) and 5(a)); abdominal tergites III – V with one pair of anterior macrosetae; male abdominal tergite VII ( Figures 3 (c) and 5(c)) without tubercle; posterior margin of male abdominal tergite VIII not modified ( Figures 3 (d) and 5(d)) ...................................................................................................................... 5

– Antennomeres 8 – 10 transverse or quadrate ( Figures 9 (a) and 11(a)); abdominal tergites III – V with two pairs of anterior macrosetae; male abdominal tergite VII ( Figures 9 (c) and 11(c)) with tubercle; posterior margin of male abdominal tergite VIII modified ( Figures 9 (d) and 11(d)) ........................................................................................ 6

5. Eyes small, slightly shorter than temples; antennomere 11 monocolour; labial palpi less elongate ( Figure 2 (f)); mesoventral process distinctly shorter than isthmus .................................................... .................................................... A. brunnea sp. nov.

– Eyes large, distinctly longer than temples; antennomere 11 bicolour, paler at apex; labial palpi more elongate ( Figure 4 (f)); mesoventral process about as long as or longer than isthmus ...................................................................... A. hydrosmectoides sp. nov.

6. Eyes shorter than temples; male abdominal tergite VIII ( Figure 9 (d)) with two processes .................................................................................................... A. parviocularis sp. nov.

– Eyes about as long as or slightly longer than temples; male abdominal tergite VIII ( Figure 11 (d)) with four processes .................................................... A. tuberculata sp. nov.

Figures

Figure 2. Mouthparts of Aloconota brunnea sp. nov. (a) Labrum (dorsal aspect); (b) epipharynx (ventral aspect); (c) right mandible (dorsal aspect); (d) left mandible (ventral aspect); (e) left maxilla (ventral aspect); (f) labium (ventral aspect).

Figure 3. Aloconota brunnea sp. nov. (a) Antenna; (b) pronotum; (c) male abdominal tergite VII (dorsal aspect); (d) male abdominal tergite VIII (dorsal aspect); (e) median lobe of aedeagus (lateral aspect); (f) median lobe of aedeagus (ventral aspect); (g) paramere (lateral aspect); (h): spermatheca. Scales = 0.1 mm.

Figure 4. Mouthparts of Aloconota hydrosmectoides sp. nov. (a) Labrum (dorsal aspect); (b) epipharynx (ventral aspect); (c) right mandible (dorsal aspect); (d) left mandible (ventral aspect); (e) left maxilla (ventral aspect); (f) labium (ventral aspect).

Figure 7. Aloconota impressa sp. nov. (a) Antenna; (b) pronotum; (c) male abdominal tergite VII (dorsal aspect); (d) male abdominal tergite VIII (dorsal aspect); (e) median lobe of aedeagus (lateral aspect); (f) median lobe of aedeagus (ventral aspect); (g) paramere (lateral aspect); (h) spermatheca. Scales = 0.1 mm.

Figure 9. Aloconota parviocularis sp. nov. (a) Antenna; (b) pronotum; (c) male abdominal tergite VII (dorsal aspect); (d) male abdominal tergite VIII (dorsal aspect); (e) median lobe of aedeagus (lateral aspect); (f) median lobe of aedeagus (ventral aspect); (g) paramere (lateral aspect); (h) spermatheca. Scales = 0.1 mm.

Figure 11. Aloconota tuberculata sp. nov. (a) Antenna; (b) pronotum; (c) male abdominal tergite VII (dorsal aspect); (d) male abdominal tergite VIII (dorsal aspect); (e) median lobe of aedeagus (lateral aspect); (f) median lobe of aedeagus (ventral aspect); (g) paramere (lateral aspect); (h) spermatheca. Scales = 0.1 mm.