Cyrtognatha

Dimitrov, Dimitar & Hormiga, Gustavo, 2009, Revision And Cladistic Analysis Of The Orbweaving Spider Genus Cyrtognatha Keyserling, 1881 (Araneae, Tetragnathidae), Bulletin of the American Museum of Natural History 2009 (317), pp. 1-140 : 27-29

CYRTOGNATHA (MALES)

1. Caudal tubercle of the abdomen well developed (fig. 1A–C).................. 2

– Caudal tubercle very small or absent.... 7

2. Metine embolic apophysis distally finishing in a long (nearly as long as the distal embolus) lamina (fig. 9A–C)................ 3

– Metine embolic apophysis differently shaped.............................. 4

3. One of the three distal membranous processes of the basal apophysis of the conductor with a well-chitinized sharpened outgrowth (fig. 10A, C); tip of the paracymbium widened and elongated (fig. 10B)............................ C. eberhardi , n. sp.

– Basal apophysis of the conductor with three membranous processes without sharpened outgrowth (fig. 9C); tip of the paracymbium rounded (fig. 9B)....... C. atopica , n. sp.

4. Embolus ventrally with a big metine embolic apophysis (fig. 62A); metine embolic apophysis nearly straight and without distinguishable longitudinal fold in prolateral view; abdomen cylindrical with long caudal tubercle oriented longitudinally (fig. 63A–C)......................... C. nigrovittata

– Metine embolic apophysis with a well-developed membrane between it and the rest of the embolus, which has numerous folds; metine embolic apophysis with a well-developed longitudinal fold prolaterally (fig. 25A).. 5

5. Embolus widened subapically and with a semicircular subterminal outgrowth (fig.

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8. 25A–C); metine embolic apophysis with a well-developed longitudinal fold prolaterally, which runs through the whole length of the apophysis (fig. 25A)... C. pachygnathoides Distal part of the embolus (beyond the base of metine embolic apophysis) not widened..

................................. 6 Embolus with a membranous lamina reaching its tip (fig. 11A); metine embolic apophysis prolateral fold does not reach the base of metine embolic apophysis (fig. 11C); embolus tip in prolateral view not bended ventrally..

..................... C. quichua , n. sp. Membranous lamina on the embolus not reaching embolic tip (fig. 8A, B); metine embolic apophysis with prolateral fold starting from its base. 8C); embolus tip in prolateral view bent ventrally........ C. catia , n. sp. Chelicerae widely divergent (fig. 4B).... 8 Chelicerae moderately divergent (fig. 4A).. 16 Tip of the embolus bent prolaterally (fig. 22A)............ C. orphana , n. sp. – Tip of the embolus differently shaped... 9

9. Distal part of conductor basal apophysis wider than its base in prolateral view (fig. 16C)....................... 10

– Distal part of conductor basal apophysis narrower than its base in prolateral view (fig. 41C)....................... 12

10. Embolus with a conspicuous distal apophysis (DEA) (fig. 16A,B)..... C. morona , n. sp.

– Embolus without distal apophysis...... 11

11. Embolus with enlarged section (fig. 15A, B); basal apophysis of the conductor ends distally with a bifurcated flattened apophysis with short sharpened outgrowths (fig. 15C); embolus with well-developed metine embolic apophysis (fig. 15A–C).. C. waorani , n. sp.

– Embolus not enlarged (fig. 15A); basal apophysis bifurcated distally but rounded (fig. 15C); embolus without metine embolic apophysis and with a terminal membrane and ventral folds (fig. 15A–C)............................... C. paradoxa , n. sp.

12. Dorsal tooth of the chelicerae bifurcated (fig. 38B–E); continental Central America.. ................................ 13

– Dorsal tooth of the chelicerae not bifurcated; Greater Antilles.................. 14

13. Metine embolic apophysis very well developed (fig. 37A–C; embolus widened and with an extensive serrated membrane between its distal part and the metine embolic apophysis (figs. 37A, C, 39A, B, 39I)..... C. insolita

– Embolus without metine embolic apophysis (fig. 58A–C); embolus without serrated membrane (fig. 58C)............... C. bella

14. Apical apophysis of the conductor with two almost equally developed processes (fig. 52B); embolus without metine embolic apophysis and with a short membrane ventrally from its distal edge (fig. 52A, C); Jamaica..... C. bryantae

– Apical apophysis of the conductor with one process much bigger than the other (fig. 41A); embolus without membrane and metine embolic apophysis................. 15

15. Tip of the embolus curved prolaterally (fig. 31A); embolus as in fig. 31A–C; Hispaniola................... C. espanola

– Tip of the embolus pointing retrolaterally (fig. 47A, B); embolus as in fig. 47A–C; Cuba..................... C. simoni

16. Embolus with a well-developed triangular metine embolic apophysis apophysis ventrally (fig. 18A); embolus very wide subterminally and with a serrated membrane (fig. 18A– C).................. C. petila , n. sp.

– Embolus with a very small or without metine embolic apophysis; embolus without serrated membrane...................... 17

17. Distal part of the basal apophysis of the conductor wider than its base (fig. 17A, C); large portion of embolus with a distal membranous ridge; metine embolic apophysis very small (fig. 17A, B).. C. leviorum , n. sp.

– Distal part of the basal apophysis of the conductor narrower than its base (fig. 60C); embolus without metine embolic apophysis, and if membranous ridge is present it does not reach the embolic tip (fig. 60C)..... 18

18. Apical apophysis of the conductor with two with two processes of similar size (fig. 60B); embolus with a membrane ventrally near the narrower distal edge of the embolus (fig. 60A–C); St. Vincent Island..... C. serrata

– Apical apophysis of conductor with one distal process several times larger than the other (fig. 41A); embolus without membrane (fig. 41A–C); Hispaniola....... C. rucilla