Deois (Deois) mourei

Foieri, Alvaro, Marino De Remes Lenicov, Ana M. & Virla, Eduardo G., 2016, Description of the immature stages and new host plant records of Deois (Deois) mourei (Berg) (Hemiptera: Cercopidae), a species newly recorded from Argentina and Paraguay, Zootaxa 4161 (3), pp. 419-428 : 425

Key to the nymphal instars of D. (D.) mourei

1. Metatibiae and basal metatarsomere with 2 apical spines, respectively ( Fig. 11 ). Wingpads not evident. Antennal flagellum with 4 flagellomeres ( Fig. 6 ).................................................................... first instar

- Metatibiae with 4 or more apical spines, basal metatarsomere with more than 3 apical spines. Wingpads evident. Antennal flagellum with 4 or more flagellomeres...................................................................... 2

2. Metatibiae and basal metatarsomere with 4 and 3 apical spines, respectively ( Fig. 12 ). Wingpads slightly evident................................................................................................... second instar

- Metatibiae with 7 or more apical spines, basal metatarsomere with 4 or more apical spines; wingpads reaching the first abdominal segment......................................................................................... 3

3. Metatibiae and basal metatarsomere with 7 and 4 apical spines, respectively ( Fig. 13 ). Meso and metanotum slightly projected laterally ( Fig. 3 ).............................................................................. third instar

- Metatibiae with 11 or more apical black-tipped spines, without or with one lateral spine; metatarsi with 2 or 3 tarsomeres, basal metatarsomere with 6 or more apical spines. Antennal flagellum with more than 4 flagellomeres....................... 4

4. Metatibiae with 11 apical black-tipped spines and without lateral spines, basal metatarsomere with 6 apical spines and two spines in the middle of the plantar surface at level the second tarsomere ( Fig. 14 ). Antennal flagellum with 5 flagellomeres ( Fig. 9 ).................................................................................... fourth instar

- Metatibiae with 13 apical black-tipped spines, with one lateral spine, metatarsi with 3 tarsomeres: basal tarsomere with 9 apical spines, second tarsomere with 2 apical spines ( Fig. 15 ). Antennal flagellum with 6 flagellomeres ( Fig. 10 )... fifth instar

Figures

FIGURES 11 – 15. Apical portion of tibiae and tarsi of immature stages of Deois (Deois) mourei (11) First instar. (12) Second instar. (13) Third instar. (14) Fourth instar. (15) Fifth instar. Scale bar = 1 mm.

FIGURES 6 – 10. Antennae of Deois (Deois) mourei nymphal instars. (6) First instar. (7) Second instar. (8) Third instar. (9) Fourth instar. (10) Fifth instar. Scale bar = 1 mm.

FIGURES 1 – 5. Immature stages of Deois (Deois) mourei in dorsal view: (1) First instar, (2) Second instar, (3) Third instar. (4) Fourth instar. (5) Fifth instar. Scale bar = 1 mm.