Orotettix (Ronderos & Carbonell, 1994)

Pocco, Martina E., Minutolo, Carolina, Dinghi, Pablo A., Lange, Carlos E., Confalonieri, Viviana A. & Cigliano, María Marta, 2015, Species delimitation in the Andean grasshopper genus Orotettix Ronderos & Carbonell (Orthoptera: Melanoplinae): an integrative approach combining morphological, molecular and biogeographical data, Zoological Journal of the Linnean Society 174 (4), pp. 733-759 : 759

KEY TO THE SPECIES OF OROTETTIX

1. Pronotum with lateral carinae clearly indicated ( Fig. 6F )........................................................... O. hortensis

1′. Pronotum with lateral carinae slightly indicated or obsolete.....................................................................2

2. Male cerci short, parallel to epiproct ( Fig. 8F )........................................................................................3

2′. Male cerci longer, sharply ( Fig. 7F ) or slightly curved over the epiproct ( Fig. 7H ).........................................5

3. Male cerci not surpassing the tip of epiproct ( Fig. 8H ); sheath of aedeagus with prominent dorsal hump ( Fig. 10J ). ........................................................................................................................................... O. laevis

3′. Male cerci barely surpassing the tip of epiproct ( Fig. 8F ); sheath of aedeagus with slightly prominent dorsal hump ( Fig. 10D ) ........................................................................................................................................4

4. Hind tibiae greenish or orange ( Fig. 6G ); apical valves of aedeagus wider; sheath of aedeagus long, covering most of the apical valves, with mid-dorsal apical lobes prominent ( Fig. 10E )......................................... O. ceballosi

4′. Hind tibiae reddish-brown ( Fig. 6H ); apical valves of aedeagus slender; sheath of aedeagus shorter, covering 2/3 of the apical valves, with mid-dorsal apical lobes less prominent ( Fig. 10H ) ........ O. paucartambensis sp. nov.

5. Apical valves of aedeagus with distal half incurved ( Fig. 10N ); mid dorsal apical lobes of sheath of aedeagus covering most of the apical valves in lateral view ( Fig. 10M ) .......................................... O. colcaensis sp. nov.

5′. Apical valves of aedeagus with distal half straight with incurved or divergent apex; mid-dorsal apical lobes of sheath of aedeagus covering 2/3 or less of the apical valves in lateral view ................................................ 6

6. Apical valves of aedeagus strongly widening at the subtriangular distal portion, slightly divergent in dorsal view ( Fig. 9K )..........................................................................................................................................7

6′. Apical valves of aedeagus with distal portion as wide as proximal portion, slightly curved inwards, overlapping at apex ( Fig. 9B )...................................................................................................................................9

7. Male cerci dorsally curved in an acute angle, with conical apex ( Fig. 7F ); apical valves of aedeagus with distal portion forked shape ( Fig. 9H ); hind tibiae orange-red ( Fig. 6C )..................................... O. dichrous sp. nov.

7′. Male cerci slightly curved over the epiproct, with acute or compressed apex; distal portion of apical valves of aedeagus wide, sub-triangular shaped; hind tibiae orange-red or greenish................................................................8

8. Male cerci with acute apex ( Fig. 7G ); sub-triangular distal portion of apical valves of aedeagus with straight apical edge ( Fig. 9K ); hind tibiae greenish ( Fig. 6D )............................................................. O. astreptos sp. nov.

8′. Male cerci with compressed apex ( Fig. 7I ); sub-triangular distal portion of apical valves of aedeagus with lunate apical edge ( Fig. 9N ); hind tibiae orange-red ( Fig. 6E )................................................... O. lunatus sp. nov.

9. Male cerci narrowly curved over epiproct, with compressed apex ( Fig. 7B ) ................................... O. andeanus

9′. Male cerci slender, widely curved inwards, with acute apex ( Fig. 7D )........................................... O. carrascoi

Figures

Figure 6 Orotettix males, species as indicated. A–J, habitus. Scale bars: 5 mm. Numbers indicate characters and states used in the phylogenetic analyses.

Figure 7 Orotettix males, species as indicated. A, C, E, G, I, distal abdominal segments, lateral view; B, D, F, H, J, distal abdominal segments, dorsal view. Numbers indicate characters and states used in the phylogenetic analyses.

Figure 8 Orotettix males, species as indicated. A, C, E, G, I, distal abdominal segments, lateral view; B, D, F, H, J, distal abdominal segments, dorsal view. Numbers indicate characters and states used in the phylogenetic analyses.

Figure 9 Orotettix males. Phallic complex, species as indicated. A, D, G, J, M, distal portion of aedeagal valves, lateral view; B, E, H, K, N, distal portion of aedeagal valves, dorsal view; C, F, I, L, O, epiphallus, dorsal view. Numbers indicate characters and states used in the phylogenetic analyses.

Figure 10 Orotettix males. Phallic complex, species as indicated. A, D, G, J, M, distal portion of aedeagal valves, lateral view; B, E, H, K, N, distal portion of aedeagal valves, dorsal view; C, F, I, L, O, epiphallus, dorsal view. Numbers indicate characters and states used in the phylogenetic analyses.