Psammostiba jessoensis ( Brundin, 1943 ) Brundin, 1943

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 : 33

Psammostiba jessoensis ( Brundin, 1943) , comb. nov.

( Figs. 21­27 in Brundin 1943; Figs. 34 , F­N in Yosii & Sawada 1976; Figs. 53­63 , 65, 67 )

Atheta (Panalota) jessoensis Brundin, 1943: 22 .

Atheta (Psammostiba) jessoensis: Yosii & Sawada, 1976: 84 . Atheta (Psammostiba) jessoensis: Sawada, 1977: 173 .

Examined material: Russia: Maritime Territory (Primorskiy Kray): 20 specimens, Dalnegorsk Distr., env. of Rudnaya Pristan', "Smychka" Research Station, seashore, in seaweed (V.I.Gusarov), 11.ix.1987 ( SPSU).

Diagnosis. Psammostiba jessoensis can be recognized by smooth posterior margin of male tergum 8, and by the distinct shape of the aedeagus ( Figs. 34 , J­N: Yosii & Sawada 1976) and spermatheca ( Fig. 27 : Brundin 1943).

Psammostiba jessoensis differs from P. comparabilis and P. kenaii by lack of crenulation of the posterior margin of male tergum 8.

Distribution. Psammostiba jessoensis is known from Japan (northern Honshu and Hokkaido) and Russia (Maritime Territory).

Figures

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 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 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 53 ­ 57. Mouthparts of Psammostiba jessoensis (Brundin) (male from Rudnaya Pristan', Russia). 53 – labrum; 54 – epipharynx; 55 – left mandible, dorsal view; 56 – left mandible, ventral view; 57 – right mandible, dorsal view. Scale bar 0.2 mm.

FIGURES 58 ­ 61. Mouthparts of Psammostiba jessoensis (Brundin) (male from Rudnaya Pristan', Russia). 58 – prementum; 59 – hypopharynx; 60 – right maxilla, ventral view; 61 – mentum. Scale bar 0.1 mm (58 ­ 59, 61), 0.2 mm (60).

FIGURES 62 ­ 64. Details of Psammostiba jessoensis (Brundin) (62 ­ 63; female from Rudnaya Pristan', Russia) and P. comparabilis (Mäklin) (64; male from Homer, Alaska). 62 – pronotum; 63 – meso­ and metathorax, ventral view; 64 – right antenna. Scale bar 0.4 mm.

FIGURES 65 ­ 68. Details of Psammostiba jessoensis (Brundin) (65, 67; males from Rudnaya Pristan', Russia) and P. comparabilis (Mäklin) (66, 68; males from Homer, Alaska). 65 – right metatarsus; 66 – left metatarsal segment 5 and metapretarsus, dorsal view; 67 ­ 68 – everted internal sac, parameral view. SS – medial pair of sclerotized structures. Scale bar 0.2 mm.