Julus

Evsyukov, Aleksandr, Golovatch, Sergei & Reip, Hans S., 2018, The millipede genus Julus Linnaeus, 1758 in the Caucasus (Diplopoda: Julida: Julidae), Zootaxa 4461 (1), pp. 89-117: 114

publication ID

https://doi.org/10.11646/zootaxa.4461.1.7

publication LSID

lsid:zoobank.org:pub:3FACE488-20DC-46A4-A511-026B7F2DBEA2

persistent identifier

http://treatment.plazi.org/id/610E87FB-930F-FF83-FF0D-F38BFA6519C7

treatment provided by

Plazi

scientific name

Julus
status

 

Key to Julus  species in the Caucasus region, based on male characters

1. Main process (mp) of male leg-pair 2 broadened at apex....................................................... 2

- Main process (mp) of male leg-pair 2 not broadened apically................................................... 4

2. Main process (mp) of leg-pair 2 long, with two outgrowths. Distofrontal one more or less large and thick. Caudal outgrowth small and short ( Figs 4G–I View Figure )...................................................................... J. kubanus 

- Main process (mp) of leg-pair 2 long, with one larger or smaller distocaudal outgrowth.............................. 3

3. Main process (mp) of leg-pair 2 long, with a ventral spike-like outgrowth ( Figs 4B–D View Figure ). Gonopodal promere (pr) wide, round at apex, with a triangular spike (t) in middle part ( Figs 8C–I View Figure ).......................................... J. colchicus 

- Main process (mp) long, with or without a small apical bulb, but always with a small caudal tooth or uncus at apex ( Figs 6A– D View Figure ). Gonopodal promere (pr) narrow, round at apex, with an elongated lateral lamella (la) ( Figs 11A–H View Figure ).......... J. lignaui 

4. Main process (mp) of leg-pair 2 curved laterally ( Figs 7A–B View Figure ). Gonopodal promere (pr) wide, with a lateral lamella (la) ( Fig. 12H View Figure )...................................................................................... J. subalpinus 

- Main process (mp) of leg-pair 2 long and straight............................................................ 5

5. Coxa (cx) of leg-pair 1 with a small or large lateral outgrowth.................................................. 6

- Coxa (cx) of leg-pair 1 without a lateral outgrowth........................................................... 7

6. Coxa (cx) of leg-pair 1 with a small lateral outgrowth ( Figs 3E–F View Figure ). Gonopodal promere (pr) relatively wide ( Figs 9A, 9C View Figure ).......................................................................................... J. jedryczkowskii 

- Coxa (cx) of leg-pair 1 with a large lateral outgrowth ( Fig. 3T View Figure ). Gonopodal promere (pr) narrow ( Fig. 13D View Figure )..................................................................................................... J. khostensis  sp. n.

7. Flagellum (fl) of gonopodal promere with a spike-like outgrowth and a small lamina in distal part ( Fig. 13A View Figure ). Promere (pr) wide, with two narrow lamellae: one apical (la1) and the other basal (la2) ( Fig. 13B View Figure )................. J. dagestanus  sp. n.

- Flagellum (fl) of gonopodal promere without outgrowths. Gonopodal promere with one lamella....................... 8

8. Gonopodal opisthomere (op) higher than lateral outgrowth (lo) ( Figs 14F View Figure ) Promere (pr) round at apex, with a wide lateral lamella (la) ( Figs 12A, 12E View Figure ).................................................................... J. lindholmi 

- Gonopodal opisthomere (op) lower than its lateral outgrowth (lo) ( Fig. 14A View Figure ). Promere (pr) with a lamella (la) in middle part, rounded and apically gently angular ( Fig. 8A View Figure )..................................................... J. alexandrae 

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Julida

Family

Julidae