COLEOPTERA), FROM EAST MONTENEGRO, WITH NOTES ON ITS PHYLOGENY

A new genus and species of cave-dwelling leiodid beetles (Rozajella jovanvladimiri gen. n., sp. n.) has been diagnozed and described from the Pećina u Dubokom Potoku Cave, village of Donje Biševo, near Rožaje, Eastern Montenegro. This new genus clearly differs from all other close genera in the following correlative traits: body size; shape of head; presence of occipital carina, length of antennae; morphometric ratios and form of certain antennomeres; head/pronotum width ratio; pronotum length/width ratio; form of lateral pronotal margins; pronotal/elytral base length ratio; form of femora and protarsi; presence of apical rows of spines on tibiae; form of elytra; existence of elytral shoulders; length of elytral setae; form of median lobe and its apex; form of inner sac; length of basal bulbus; form of parameres and their apices; distribution of parameral setae; and distribution in the Balkan Peninsula. Rozajella gen. n. belongs to a separate phyletic lineage (série phylétique de “Leptodirus” sensu P e r r e a u 2000) which includes five other genera, Leptostagus Z. Karaman (from Macedonia), Petkovskiella Guéorguiev (from Macedonia), Astagobius Reitter (from Slovenia and Croatia), Albanodirus Giachino & Vailati (from Albania), and Leptodirus Schmidt (from Slovenia, Croatia, and Italy). The new genus is present in Eastern Montenegro only. The Rozajella-Leptostagus-Petkovskiella-Astagobius-Albanodirus-Leptodirus complex is probably of early Tertiary age, its species having originated during the Alpine Orogeny, which affected vast areas of the Balkan Peninsula, including the Dinarids, otherwise their terra typica.

analysis, a new genus and a new species -Rozajella jovanvladimiri gen.n., sp.n. -were established.The description of this new taxon is based on the study of six male and seven female specimens.The type series is deposited in the collection of the Institute of Zoology, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia (IZB 2000-13).

MATERIAL AND METHODS
Type specimens of analyzed leptodirine leiodids were catched under stones and from wet walls by hand in the posterior part of the Pećina u Dubokom Potoku Cave, village of Donje Biševo, near Rožaje, Eastern Montenegro.
The leiodid specimens were glued to separate paper labels and analyzed as dry samples.Both male and female genitalia were taken out from the insects and fixed on microscope slides in the medium consisted of canadabalsam and xylol.Description.-A leptodirine genus of medium dimensions, eyeless, pubescent (most evidently in elytra), with leptodiroid body, large subrectangular pronotum, inversely-ovate elytra, and antennae significantly shorter than the body length.
Head elongate, not retractile, with inconspicuous occipital carina; somewhat narrower than pronotum, basally slightly narrowing; mouth parts with dense, long pubescence.Penultimate labial palpomere long and widening distally; apical palpomere short.Temples somewhat concave; vertex almost flat.Temples bordered with a suture leading towards the anterior part of the head.Antennae inserted on the mid third of head, long, similar in both sexes, and protruding over mid-elytra (not reaching the elytron apex).Antennomere I wider and less than 1/3 shorter than antennomere II.Antennomere II moderately wide, longer than antennomere III, which is longer than antennomere IV.Antennomere V slightly shorter than antennomere VI; the both articles narrow.Antennomeres VII, IX, and X conus-like, widened distally; of these, antennomere VII is the longest, and antennomere X is the shortest.Antennomere VIII small, moderately widened distally, 1/3 shorter than antennomere II.Ultimate antennomere the longest, apically pointed.
Pronotum large, slightly longer than it is wide, with its maximum width slightly anterior to mid-pronotum level, subrectangular in shape; lateral sides rounded anteriorly, sinuate basally, with hind angles obtuse but evident; basal margin shorter than the base of elytra.Pterothorax not pedunculate.Mesosternal carina weakly expressed; metasternum not predominant.with an apical row of short spines; mesotibiae bearing a 7-fid inner apical spur, and metatibiae carrying an unifid apical thorn.Tarsal claws long and pointed apically.
Male abdominal sternite IX (urite) well-developed and subtriangular.Aedeagus small-sized, stout, and arcuate (in lateral view); median lobe with a triangularly pointed apex which is slightly curved ventrally in lateral view; basal bulbus large and rounded; parameres slightly shorter than the median lobe, dilated at apex, gradually attenuated apically in lateral view, slightly curved inwards in dorsal view, each furhished with three setae (two close-set apical and one pre-apical, respectively).Inner sac weakly sclerotized.
Distribution.-The genus Rozajella gen.n. is monotypic and comprises a single species: R. jovanvladimiri sp.n., inhabiting a cave locality in Eastern Montenegro.
The Rozajella-Leptostagus-Petkovskiella-Astagobius-Albanodirus-Leptodirus complex is probably of early Tertiary age, its species having originated during the Alpine Orogeny, which affected vast areas of the Balkan Peninsula, including the Dinarids, otherwise their terra typica.Rozajella gen.n. represents a relict form endemic to both Montenegro and the Balkan Peninsula.Diagnosis.-The species is presently the only species of the genus (see the "Diagnosis" of Rozajella gen.n.).
Pronotum large in size (Fig. 1), moderately elongate, slightly longer than it is wide (pronotum width/length ratio: 0.94), with its maximum width slightly anterior to mid-pronotum level, slightly constricted to the base; lateral sides rounded anteriorly, sinuate basally.Basal margin shorter than the base od elytra.Both anterior (more intense) and basal margin (slightly) convex.Disc convex, covered by dense, short, erect pubescence, and by densely distributed deep punctures.Pterothorax not pedunculate.Mesosternal carina weakly expressed; metasternum not predominant.
Legs long and slender, with femora thickened basally (Figs.1,2).Hind femora and tibiae almost straight.Tibiae without exterior bristles.Protibiae widened towards apex, with a semicircular apical comb, and a 7-fid inner apical spur each; meso-and metatibiae each with an apical row of short spines; mesotibiae bearing a 7-fid inner apical spur, and metatibiae carrying an unifid apical thorn.Tarsal claws long and pointed apically.Male protarsi 5-segmented, with two basal tarsomeres dilated, from which the tarsomere I narrower than the apex of protibia; female protarsi 4-segmented and narrow.Aedeagus (Figs. 3-5) small, stout; basal bulbus large and rounded.Median lobe in dorsal view (Fig. 3) moderately narrowing distally and apically triangularly pointed.Inner sac mostly colourless and unarmed, only two median bands present.Median lobe in lateral view distinctly arcuated (Fig. 4), with an median convexity dorsally, slightly elevated and acuminate at apex.Its apex slightly curved ventrally in lateral view.Parameres elongated, thin, slightly shorter than the median lobe, gradually attenuated apically in lateral view, slightly curved inwards in dorsal view, dilated at apex, each furnished with three straight acuminate setae (two close-set in apical position, one inner, in pre-apical position) (Figs. 3, 5), similar in size and length.
Bionomy and distribution.-This species was found under stones and on wet walls in the Pećina u Dubokom Potoku Cave, village of Donje Biševo, near Rožaje (Eastern Montenegro).The type habitat is in the posterior part of the cave, where stones are distributed over the floor.Apart from Rozajella jovanvladimiri gen.n., sp.n., Pećina u Dubokom Potoku Cave is also inhabited by some pselaphine rove beetles (Bryaxis sp.), pseudoscorpions (Neobisium ninae Ćurčić & Dimitrijević), diplurans, and collembolans, respectively (Pretner1977;Ć určić et al. 2007).The analyzed species represents an endemic and relict taxon of Tertiary origin and age.