Dimorphacanthella
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Name
Dimorphacanthella Potapov, Mikhail B., 2010 – Wikispecies link – Pensoft Profile
- Dimorphacanthella Potapov, Mikhail B., 2010, ZooKeys 73: 13-15.
Description
Description. Ocelli and pigment absent. Abd. V and Abd. VI fused. Integument regularly and slightly reticulated, without pits. Middle-sized and large individuals with four anal spines set in one transversal row on posterior edge of Abd. V (Figs 1, 10), small juveniles with only two inner anal spines on Abd. V (Fig. 2) (unexamined small juveniles for Dimorphacanthella mediaseta). Inner anal spines of all age stages derived from p1-setae. Setae a1 and p2 not modified to spines. Maxillary outer lobe with simple palp and 4 sublobal hairs. Prelabrum with 2 setae. In two known species labial palp lost five guards on papillae B, D, and E. Body chaetotaxy oligochaetotic. Unpaired median seta (p0) present on Abd. IV. Papilla of inner anal spine is supplied with a seta on dorsal side (absent in small juveniles). Macrosetae well differentiated, macrochaetotaxy of Th. II-Abd. III 1,1/2-3,2-3,2-3. Sensilla well differentiated, 2,1/1,1,1,2,4 (s) and 1,0/0,0,1 (ms) in number. Empodial appendage present, furca absent.
Distribution
Distribution: China (Shanghai, Ningxia).
Etymology
Etymology: The name of the new genus refers two morphs, juvenile and adult, having different number of anal spines in at least one species of the genus.
Taxon Treatment
- Potapov, Mikhail B.; Bu, Yun; Huang, Cheng-Wang; Gao, Yan; Luan, Yun-Xia; 2010: Generic switch-over during ontogenesis in Dimorphacanthella gen. n. (Collembola, Isotomidae) with barcoding evidence ZooKeys, 73: 13-15. doi
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