Endonura Cassagnau, 1979

Smolis, Adrian, Kuznetsova, Nataliya & Pasnik, Grzegorz, 2024, Phylogenetic analysis of Endonura Cassagnau, 1979 (Collembola, Neanuridae, Neanurinae), including descriptions of four new species, Arthropod Systematics & amp; Phylogeny 82, pp. 343-367 : 343

Genus Endonura Cassagnau, 1979

Neanura (Endonura) Cassagnau, 1979: 192.

Type species.

Achorutes tetrophtalmus Stach, 1929: 282.

Diagnosis.

0-2 + 0-2 eyes, pigmented or not. Colour of body blue, purple brown, white, never yellow or red. Dorsal tubercles present, well developed. Mouthparts feebly developed, maxilla styliform, mandible slender or rarely strong. Labral chaetotaxy: 4/2, 4; sometimes prelabral or labral chaetae reduced. Sensilla S on Ant. IV of similar size. Head with 10 or 12 tubercles. Tubercles Af and Cl separate or fused. Tubercles Di and De on head separate, sometimes Di not differentiated. Arrangement of chaetae Di and De on head of the „non-croisé” type ( Deharveng 1983). Tubercles L and So on head fused. S-chaetae present in typical arrangement and number; 22/11111 on each half tergite from th. II to abd. V. Abdomen IV with 8 tubercles: 2 Di, 2 De, 2 Dl and 2 L, or 5 tubercles: (Di+Di), 2 (De+Dl) and 2 L. Abdomen V with 3 tubercles: 2 (De+Dl+L) and (Di+Di) or 2 tubercles: 2 (Di+De+Dl+L). Tubercles Di on abd. V fused or separate. Tibiotarsal chaetotaxy 19, 19, 18. Claw with inner tooth or untoothed.