Trogulus
Trogulus is a genus of Opiliones in the family Trogulidae. Harvestmen in the genus have large, elongated and flattened bodies and a two-segmented tarsus segment on leg II, which distinguishes them from other genera in the family Trogulidae. The legs tend to be short compared to most harvestmen. External morphology tends to be very uniform across species in the genus, making differentiation of species difficult. Species occur in a range of habitats, but are most common in forests where their primary prey, snails, are abundant. Trogulus contains the largest known harvestman by body length, ''Trogulus torosus.''
The genus Trogulus is divided into seven species groups–groupings of allopatric species with morphological similarities:T. gypseus SGT. tricarinatus SGT. coriziformis SGT. torosus SGT. hirtus SGT. nepaeformis SGT. squamatus SG
However, genetic analysis indicates that two of the seven species groups listed above are not monophyletic. The T. torosus species group with the monophyletic T. hirtus species group nested within it and the T. gypseus species group which contains the monophyletic T. tricarinatus species group are both paraphyletic.
Species
Trogulus contains the following species:Trogulus aquaticus Simon, 1879Trogulus balearicus Schönhofer & Martens, 2008Trogulus banaticus Avram, 1971Trogulus cisalpinus Chemini & Martens, 1988Trogulus closanicus Avram, 1971Trogulus coreiformis Koch, 1839Trogulus coriziformis Koch, 1839Trogulus cristatus Simon, 1879Trogulus falcipenis Komposch, 2000Trogulus graecus Dahl, 1903Trogulus gypseus Simon, 1879Trogulus hirtus Dahl, 1903Trogulus huberi Schönhofer & Martens, 2008Trogulus karamanorum Schönhofer & Martens, 2009Trogulus longipes Haupt, 1956Trogulus lusitanicus Giltay, 1932Trogulus lygaeiformis Koch, 1839Trogulus martensi Chemini, 1983Trogulus megaligrava Schönhofer, Karaman & Martens, 2013Trogulus melitensis Schönhofer & Martens, 2009Trogulus nepaeformis Scopoli, 1763Trogulus oltenicus Avram, 1971Trogulus ozimeci Schönhofer, Karaman & Martens, 2013Trogulus pharensis Schönhofer & Martens, 2009Trogulus prietoi Schönhofer & Martens, 2008Trogulus pulverulentus Koch, 1856Trogulus pyrenaicus Schönhofer & Martens, 2008Trogulus rossicus Šilhavý, 1968Trogulus setosissimus Roewer, 1940Trogulus squamatus Koch, 1839Trogulus templetonii Westwood, 1833Trogulus tenuitarsus Schönhofer, Karaman & Martens, 2013Trogulus thaleri Schönhofer & Martens, 2009Trogulus tingiformis Koch, 1847Trogulus torosus Simon, 1885Trogulus tricarinatus Linnaeus, 1767Trogulus uncinatus Gruber, 1969