Deutonura Cassagnau, 1979

Deharveng, Louis, Mouloud, Salah Ait & Bedos, Anne, 2015, A new species of Deutonura (Collembola: Neanuridae: Neanurinae) from Algeria, with revised diagnosis of the genus and key to western Palaearctic species, Zootaxa 4000 (4), pp. 464-472 : 465

Deutonura Cassagnau, 1979

Generotype: Achorutes phlegraeus ( Caroli, 1912) sensu Gama, 1964 .

Deutonura was proposed and characterised by Cassagnau in 1979 as a subgenus of Neanura in a seminal work on the taxonomy of Neanuridae . Subsequently, one species originally placed in the subgenus, Neanura (Deutonura) austriaca Gama, 1963 was transferred to the new genus Sensillanura Deharveng, 1981 . Later Deharveng (1982a) upgraded the subgenus to generic level, and three of its species were transferred to two new genera ( Deharveng 1982b): N. (D.) nana Cassagnau & Péja, 1979 to Albanura Deharveng, 1982 , and N. (D.) catalana Deharveng, 1979 and N. (D.) najtae Deharveng, 1979 to Catalanura Deharveng, 1982 . However, Deharveng did not update the diagnosis of the genus Deutonura at that time. Meanwhile, progress in the taxonomy of Neanurinae detected new morphological characters useful for generic characterisation. Here we integrate the changes in the new diagnosis given below.

Diagnosis of Deutonura . Body colour blue to grey or white, yellow in D. centralis ( Gama, 1964) . Eyes 2+2, usually pigmented, rarely absent. Abdominal segments subequal in length. Mouthparts reduced, maxilla styliform, mandible tridentate (dubiously bidentate in D. igilica Dallai, 1983 ). Labium without x-papillae. Labral formula 2,4 when recorded (with one exception – D. conjuncta ( Stach, 1926) has 0, 4; Smolis 2008b). Chaetotaxy of body and appendages not polychaetotic. Dorsal macrochaetae thickened, always differentiated and more or less densely serrated, never ciliated. Macrochaetae Di 1 long and usually curved on Abd. V. All dorsal tubercles developed on head. Antennal and frontal tubercles never individualised, grouped in a tubercle AF. Tubercle AF never fused with both CL and Oc in the central area of head. Tubercles Di and De fused on head. Line Di 1- De 1 not crossed by line Di 2- De 2 on posterior area of head. Chaetae A, B, C, O when present always included in the antenno-frontal tubercle. All tubercles ( Di, De, DL, L) differentiated and independent on post-cephalic segments from Th. I to Abd. III. Tubercle Di fused on axis on Abd. V and rarely on Abd. IV, but never fused with De. Furcal remnant without microchaetae except in D. yoshiiana and in D. conjuncta ( Smolis 2008b) (unknown in several species). More or less developed cryptopygy in many species. Abd. VI bilobed.