Adota

Gusarov, Vladimir I., 2003, A revision of Nearctic species of the genera Adota Casey, 1910 and Psammostiba Yosii & Sawada, 1976 (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 185, pp. 1-35 : 8

Key to Nearctic species of Adota

1 Body matte. Posterior margin of male tergum 8 with three or four blunt projections ( Figs. 19 , 31 ). Median lobe of aedeagus with blunt apex ( Figs. 23­24 , 35­36 ). Spermatheca: Figs. 29­30 , 40­41 . Known from the Pacific coast of North America, from Alaska to California ( Fig. 52 ) ....................................................................................... 2

– Body glossy despite isodiametric microsculpture. Posterior margin of male tergum 8 straight ( Fig. 42 ). Median lobe of aedeagus with pointed apex ( Figs. 46­47 ). Spermatheca: Fig. 51 . Body length 2.4­2.6 mm. Known from the Gulf of California ( Fig. 52 ) ............................................................................ 3. Ad. colpophila Gusarov , sp. n.

2 Apex of median lobe almost as wide as basal part of median lobe ( Figs. 23­24 ). Posterior margin of male tergum 8 slightly emarginate medially ( Fig. 19 ). Spermatheca larger ( Figs. 29­30 ). Body length 2.5­3.2 mm ..............1. Ad. maritima (Mannerheim)

– Apex of median lobe narrower than basal part of median lobe ( Figs. 35­36 ). Posterior margin of male tergum 8 convex medially ( Fig. 31 ). Spermatheca smaller ( Figs. 40­ 41 ). Body length 2.2­2.8 mm ............................................. 2. Ad. gnypetoides (Casey)

Figures

FIGURE 52. Geographical distribution of Nearctic species of Adota.

FIGURES 19 ­ 22. Abdominal segment 8 of Adota maritima (Mannerheim) (males (19 ­ 20) and female (21 ­ 22) from Homer, Alaska). 19 – male tergum 8; 20 – male sternum 8; 21 – female tergum 8; 22 – female sternum 8. Scale bar 0.2 mm.

FIGURES 31 ­ 34. Abdominal segment 8 of Adota gnypetoides Casey (male (31 ­ 32) and female (33 ­ 34) from Bodega Head, California). 31 – male tergum 8; 32 – male sternum 8; 33 – female tergum 8; 34 – female sternum 8. Scale bar 0.2 mm.

FIGURES 23 ­ 30. Genitalia of Adota maritima (Mannerheim) (males (23 ­ 28) and female (29 ­ 30) from Homer, Alaska). 23 – median lobe, parameral view; 24 – apex of median lobe, parameral view; 25 – median lobe, lateral view; 26 – apex of median lobe, lateral view; 27 – copulatory piece, parameral view; 28 – apex of left paramere; 29 ­ 30 – spermatheca. Scale bar 0.1 mm (24, 26 ­ 28), 0.2 mm (23, 25, 29 ­ 30).

FIGURES 35 ­ 41. Genitalia of Adota gnypetoides Casey (male (35 ­ 39) and female (40 ­ 41) from Bodega Head, California). 35 – median lobe, parameral view; 36 – apex of median lobe, parameral view; 37 – median lobe, lateral view; 38 – apex of median lobe, lateral view; 39 – apex of left paramere; 40 ­ 41 – spermatheca. Scale bar 0.1 mm (36, 38 ­ 39), 0.2 mm (35, 37, 40 ­ 41).

FIGURES 42 ­ 45. Abdominal segment 8 of Adota colpophila Gusarov, sp. n. (male (42 ­ 43) and female (44 ­ 45) paratypes from Punta Chueca, Mexico). 42 – male tergum 8; 43 – male sternum 8; 44 – female tergum 8; 45 – female sternum 8. Scale bar 0.2 mm.

FIGURES 46 ­ 51. Genitalia of Adota colpophila Gusarov, sp. n. (male (46 ­ 50) and female (51) paratypes from Punta Chueca, Mexico). 46 – median lobe, parameral view; 47 – apex of median lobe, parameral view; 48 – median lobe, lateral view; 49 – apex of median lobe, lateral view; 50 – apex of left paramere; 51 – spermatheca. Scale bar 0.1 mm (47, 49 ­ 50), 0.2 mm (46, 48, 51).