Harvestmen ( Arachnida , Opiliones ) from Talysh , with description of a new genus and other taxonomical changes

From the Talysh region in Azerbaijan 14 species of harvestmen were recorded during the field investigations of the senior author. One genus and species were new for science and one new for the region. Two names have to be synonymized and one species transferred to other genus.


INTRODUCTION
The mountainous region Talysh is the south-eastern part of Azerbaijan between 38°24' and 39°22' N and 47°58' and 48°52' E, with total area 5370 km 2 .It adjoins on the North with Mugan Steppe, on the East -with Caspian Sea and on the South and West it forms the border with Iran.
Names of collectors are abbreviated as follows: Drs Elchin Guseinov (E.G.), Denis Kasatkin (D.K.), Yuri Marusik (Yu.M.) and the senior author (N.S.).Other abbreviations used in the text are: IZB (+ a catalogue number) -Zoological Institute of the National Academy of   Phalangium zuvandicum has been described on specimens with not fully developed characters (cheliceral "horns", body and eye mound armature) but penis structure has shown that they are identical with Ph. armatum.Therefore both names must be regarded as synonyms.We use the name Phalangium armatum because it has page priority and has been founded on specimens with better visible typical characters.This is a common phenomenon within the subfamily Phalangiinae, in genera with wide sex dimorphismus [e.g.Zachaeus C.L.K. (Šilhavý 1965), Phalangium L. (Martens 1978) or Rhampsinitus Sim.(Staręga 2009)].
The penis structure (Snegovaya 2007, ff. 6-9) shows that this species should be transferred to Rilaena Šilh.-it is typical for the subfamily Phalangiinae.

Rilaena lenkoranica
Diagnosis.Small-sized harvestman with soft, smooth body, only with a group of hardly visible denticles in front of eye mound.Eye mound small, round, with very small and thin setae.Chelicera small, basal segment with a unusual horizontal row of large denticles laterally and with some small denticles dorsally.Pedipalps short, without apophyses, covered only with setae.Legs short, with hairs, femora I ventrally with rows of small hair-tipped denticles.Penis short, shaft with characteristic subapical "spoon" dorsally, glans long, expanded in midpart, stylus long.
The most characteristic (but not diagnostic) character is a coloration of legs: alternating dark and light rings of nearly the same width.It is good visible on living specimens in the field and unique among the whole subfamily Phalangiinae.
Etymology.The genus is named after its type locality Lenkoran; the gender of the name is feminine.
Etymology.The species is named after its very characteristc nearly black coxae.