Lepidocyrtus lignorum

Winkler, Daniel, 2016, A new species of Lepidocyrtus (Collembola, Entomobryidae) from the Börzsöny Mountains, Hungary, Zootaxa 4150 (4), pp. 388-400 : 398

Key to species of the Lepidocyrtus lignorum group

The Lepidocyrtus lignorum group conceived by Mateos (2011) is characterised by the presence of scales on the antennae and legs and by the formula of dorsal macrochaetae R0R1R2/00/0101+3 (dorsal head macrochaeta So present or absent). Up to now the group was formed by L. barbulus Mateos, 2011 , L. instratus Handschin, 1924 , L. juliae Mateos, 2011 , L. lignorum ( Fabricius, 1793) , L. peisonis Traser & Christian, 1992 , L. ruber Schött, 1902 , L. tellecheae Arbea & Jordana, 1990 , L. uzeli Rusek, 1985 , L. vexillosus Loksa & Bogojević, 1967 and L. violaceus ( Geoffroy, 1762) . Presented here is the key Mateos (2011, 2016) created for the Lepidocyrtus lignorum group, including the new species L. traseri sp. nov. and correcting the erratum in the point 11 (point 8 in Mateos 2011) regarding the relative position of macrochaeta F2 to E3 on Abd. IV of L. tellecheae and L. barbulus (Eduardo Mateos pers. com.).

1 Unguiculus acuminate................................................................................. 2

- Unguiculus truncate................................................................................. 12

2 Mesothorax strongly projecting, body with pigment on Th. III to Abd. III expanding to Th. II and Abd. IV in the more densely pigmented specimens, unguis basal pair teeth at less than 45% of the inner edge, unguis tooth at less than 55% of the inner edge.......................................... L. instratus Handschin, 1924 ( Austria, Italy, Slovakia, Switzerland)

- Mesothorax slightly or not projecting over the head, body with or without pigment, unguis basal pair teeth at more than 45% of the inner edge, unguis tooth at more than 65% of the inner edge................................................ 3

3 Body with pigment................................................................................... 4

- Body unpigmented.................................................................................. 10

4 Labium with more than two M and more than one R setae, apex of the third row of labral setae simple....................................................................... L. barbulus Mateos, 2011 (pigmented form) (Greece: Naxos)

- Labium with two M and one R setae, apex of the third row of labral setae branched................................. 5

5 Body uniformly pigmented.............................................................................. 6

- Body with only several segments with pigment............................................................. 7 6 Body dark blue pigmented, labral papillae with three denticles........................... L. violaceus ( Geoffroy, 1762) ( Austria, Belgium, Britain, Bulgaria, Czech Republic, Denmark, France, Germany, Hungary, Ireland, Italy, Rep. of Moldova, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Switzerland, Ukraine, introduced in Australia)