Eobroscus Kryzhanovskij, 1951

ROIG-JUÑENT, SERGIO, 2000, The Subtribes And Genera Of The Tribe Broscini (Coleoptera: Carabidae): Cladistic Analysis, Taxonomic Treatment, And Biogeographical Considerations, Bulletin of the American Museum of Natural History 2000 (1), pp. 1-90 : 28

Eobroscus Kryzhanovskij, 1951

Eobroscus Kryzhanovskij, 1951: 538 ; 1968: 98. Morvan, 1982: 77. Morita, 1990: 155; 1995: 7.

Eobroscus (Orobroscus) Morita, 1990: 159 (type species Eobroscus (Orobroscus) masumotoi Morita, 1990 by original designation).

TYPE SPECIES (by original designation): Eobroscus richteri Kryzhanovskij, 1951 (junior synonym of Broscus lutshniki Roubal, 1928 )

DIAGNOSIS: Ventral surface of head with two deep, transverse grooves on each side of gula; submentum with six setae.

DESCRIPTION: External morphology: Head with one supraorbital seta over each eye. Head with a deep transverse sulcus on neck constriction; antenna with antennomeres 1–2 glabrous, 3 with apical ring of setae, 4 setose on apical third; 5–11 setose throughout; ventral surface of head with two deep, transverse grooves at either side of the gula. Mandibles each with or without scrobal setae. Maxillar eustipes with two basal setae. Labium with six to eight setae on submentum; mentum with ventral surface almost plain; tooth of mentum simple, very slightly emarginate or widely rounded; prementum with glossal sclerite bisetose, ventral surface without longitudinal carina. Pronotum constricted apically, with two setae each side. Elytron with parascutellar striole joined to the apical portion of stria 1; parascutellar setae present, on basal portion of second stria; lateral umbilical series with three setae. Male foretarsomeres 1–3 or 1–2 and middle tarsomeres 1– 2 with adhesive vestiture of articulosetae ventrally.

Male genitalia: Median lobe with dorsal surface sclerotized on the basal third and basal orifice partially open dorsally; ventral surface with expansions (wings). Internal sac with sclerite X broad, with a marked constriction in the middle and two symmetric lateroapical projections; apical plate of spiculae without tooth. Left and right parameres setiferous,

HABITAT: The species of this genus live in mountain habitats (Morita, 1990, 1995).

GEOGRAPHICAL DISTRIBUTION: The genus Eobroscus occurs in Asia. The subgenus Eobroscus has a northern distribution, in Eastern Siberia, Northwestern China, and Japan, whereas the subgenus Orobroscus has a southern distribution, in Taiwan, Northern Vietnam, and Buthan.

MATERIAL EXAMINED: Eobroscus lutshniki (UASM) .

REMARKS: Eobroscus has four species grouped in two subgenera (Morita, 1990).