Triaenodes (Morse & Yang, 1993)

Holzenthal, Ralph W. & Contents, Trond Andersen Table Of, 2004, The caddisfly genus Triaenodes in the Neotropics (Trichoptera: Leptoceridae), Zootaxa 511 (1), pp. 1-80 : 39-41

publication ID	https://doi.org/ 10.11646/zootaxa.511.1.1
DOI	https://doi.org/10.5281/zenodo.5567239
persistent identifier	https://treatment.plazi.org/id/D07687C5-FFBE-FF81-2732-096C5C507341
treatment provided by	Felipe
scientific name	Triaenodes
status

Treatment

Key to males of Neotropical Triaenodes View in CoL

1. Inferior appendage with apicoventral projection ( Fig. 5A View FIGURE 5 ).................................... 2 Inferior appendage without apicoventral projection ( Fig. 14A View FIGURE 14 )........................... 20

2(1). Dorsomesal process of tergum X digitate ( Fig. 6A View FIGURE 6 ), spatulate ( Fig. 14A View FIGURE 14 ), conical ( Fig. 5A View FIGURE 5 ), or a small setose protuberance ( Fig. 29A View FIGURE 29 ) ............................................. 3 Dorsomesal process of tergum X bifid ( Figs. 8A–B View FIGURE 8 , 9A–B View FIGURE 9 ) or completely divided ( Fig. 17A–B View FIGURE 17 )......................................................................................................... 18

3(2). Apex of tergum X, in dorsal view, rounded ( Fig. 5B View FIGURE 5 ), truncate ( Fig. 28B View FIGURE 28 ), or excavated medially ( Figs. 7B View FIGURE 7 , 8B View FIGURE 8 )................................................................................. 4 Apex of tergum X,in dorsal view, narrow, attenuate, upturned ( Figs. 21A View FIGURE 21 , 26A View FIGURE 26 , 29A View FIGURE 29 ) .............................................................................................................................. 15

4(3). Dorsomesal process of tergum X digitate............................................................... 5 Dorsomesal process of tergum X conical ( Fig. 5 View FIGURE 5 ) ......... Triaenodes abruptus Flint View in CoL

5(4). Apex of tergum X shallowly ( Figs. 6B View FIGURE 6 , 7B View FIGURE 7 ) or deeply excavate medially ( Figs. 8B View FIGURE 8 , 9B View FIGURE 9 ) .......................................................................................................................... 6 Apex of tergum X rounded ( Fig. 5B View FIGURE 5 ) or truncate medially ( Fig. 28B View FIGURE 28 ) .............. 11

6(5). Apex of tergum X shallowly excavate medially ( Figs. 6B View FIGURE 6 , 7B View FIGURE 7 )............................. 7 Apex of tergum X deeply excavate medially ( Fig. 27 View FIGURE 27 )......... Triaenodes tico n. sp.

7(6). Segment X with lateral flange ( Figs. 6A View FIGURE 6 , 13A View FIGURE 13 ) ..................................................... 8 Segment X without lateral flange ( Fig. 15 View FIGURE 15 ) ................... Triaenodes hodgesi n. sp.

8(7). Recurved process of inferior appendage narrow, tapering throughout its length ( Fig. 5A View FIGURE 5 ); without subapicoventral projection; dorsomesal process of tergum X long ( Fig. 7A View FIGURE 7 ) ........................................................................................................ 9 Recurved process of inferior appendage broad, flat along most of its length, with subapicoventral projection; dorsomesal process of tergum X short ( Fig. 6 View FIGURE 6 ) ............ ..................................................................................... Triaenodes acanthus n. sp.

9(8). Dorsomesal process of tergum X less than or about half length of tergum X; apex of phalicata without cleft, acute ( Figs. 11 View FIGURE 11 , 12 View FIGURE 12 ) ........... Triaenodes delicatus Navás Dorsomesal View in CoL process of tergum X extending to or beyond apex of tergum X ( Figs. 7A View FIGURE 7 , 13A View FIGURE 13 ); apex of phalicata with cleft.................................................................. 10

10(9). Phalicata straight; apex of phalicata with broad cleft, apicolateral projections bifid ( Fig. 13 View FIGURE 13 ) ...................................................................... Triaenodes flintorum n. sp. Phalicata curved; apex of phalicata with deep narrow cleft ( Fig. 7 View FIGURE 7 ) ........................ ..................................................................................... Triaenodes anomalus Flint View in CoL

11(5). Segment X with lateral flange ( Fig. 18A, B View FIGURE 18 ); dorsomesal process of tergum X long ( Fig. 10A View FIGURE 10 ) ............................................................................................................. 12 Segment X without lateral flange; dorsomesal process of tergum X short ( Fig. 23 View FIGURE 23 ) ....................................................................... Triaenodes peruanus Flint & Reyes View in CoL 12(11). Parameres deeply bifid ( Fig. 28 View FIGURE 28 ) ................................ Triaenodes tuxtlensis n. sp. Parameres not deeply bifid ( Figs. 11D View FIGURE 11 , 18D View FIGURE 18 ) ....................................................... 13

13(12). Dorsomesal process of tergum X less than or about half length of tergum X ...... 14 Dorsomesal process of tergum X extending beyond apex of tergum X ( Fig. 10 View FIGURE 10 ) .... ............................................................................... Triaenodes cuyotenango n. sp.

14(13). Phalicata straight; apex of phalicata with broad cleft, apicolateral projections bifid ( Fig. 18 View FIGURE 18 ) .................................................................... Triaenodes mexicanus n. sp. Phalicata curved; apex of phalicata without cleft, acute ( Figs. 11 View FIGURE 11 , 12 View FIGURE 12 ) .................... .................................................................................... Triaenodes delicatus Navás View in CoL

15(3). Dorsomesal process of tergum X digitate............................................................. 16 Dorsomesal process of tergum X a small setose protuberance ( Fig. 29 View FIGURE 29 ).................. ......................................................................................... Triaenodes woldai n. sp.

16(15). Segment X with lateral flange; recurved process of inferior appendage narrow, tapering throughout its length; dorsomesal process of tergum X less than or about half length of tergum X......................................................................................... 17 Segment X without lateral flange; recurved process of inferior appendage broad, flat along most of its length; dorsomesal process of tergum X extending to or beyond apex of tergum X ( Fig. 21 View FIGURE 21 )...................... Triaenodes nicaraguensis n. sp.

17(16). Basolateral margins of segment X broad, expanded laterally; dorsomesal process of tergum X short; phalicata straight ( Fig. 24 View FIGURE 24 ) ..................... Triaenodes tajo n. sp. Basolateral margins of segment X not expanded, base of segment X more parallel sided; dorsomesal process of tergum X long; phalicata curved ( Figs. 11 View FIGURE 11 , 12 View FIGURE 12 ) ......... .................................................................................... Triaenodes delicatus Navás View in CoL

18(2). Dorsomesal process of tergum X bifid, but not completely divided to base; phalicata straight........................................................................................................... 19 Dorsomesal process of tergum X completely divided to base; phalicata curved ( Fig. 17 View FIGURE 17 ) ......................................................................... Triaenodes kilambe n. sp.

19(18). Dorsomesal process of tergum X with apical setae, but not on papillate processes; preanal appendage broad basally, long, at least twice as long as wide; phalicata narrow ( Fig. 9 View FIGURE 9 ) .............................................................. Triaenodes clauseni n. sp. Dorsomesal process of tergum X with apical setae on papillate processes; preanal appendage constricted basally, short, about as long as wide; phalicata wide ( Fig. 8 View FIGURE 8 ) ....................................................................................... Triaenodes chirripo n. sp.

20(1). Dorsomesal process of tergum X digitate or spatulate; apex of apicomesal lobe of inferior appendage not curved caudad.................................................................. 21 Dorsomesal process of tergum X bifid; apex of apicomesal lobe of inferior appendage curved caudad ( Fig. 16 View FIGURE 16 ) .............................. Triaenodes hornitos n. sp.

21(20). Apex of tergum X excavated medially ................................................................. 22 Apex of tergum X narrow, attenuate, strongly upturned ( Fig. 26 View FIGURE 26 ) ........................... ......................................................................................... Triaenodes tapanti n. sp.

22(21). Dorsomesal process of tergum X digitate............................................................. 23 Dorsomesal process of tergum X spatulate........................................................... 25

23(22). Segment X with lateral flange; recurved process of inferior appendage broad, flat along most of its length, with apex hooklike, with subbasal flange ( Fig. 19 View FIGURE 19 ) .......... ....................................................................................... Triaenodes moncho n. sp. Segment X without lateral flange; recurved process of inferior appendage narrow, tapering throughout its length, apex not hooklike, without subbasal flange ........ 24

24(23). Preanal appendage short, about as long as wide; dorsomesal process of tergum X long; apicolateral margins of tergum X without microtrichia (or not evident); apex of phalicata with cleft ( Fig. 25 View FIGURE 25 ) ................................. Triaenodes talamanca n. sp. Preanal appendage long, at least twice as long as wide; dorsomesal process of tergum X short; apicolateral margins of tergum X with microtrichia; apex of phalicata without cleft, acute ( Fig. 22 View FIGURE 22 ) ............................. Triaenodes oaxacensis n. sp.

25(22). Phallus with two parameres; dorsomesal process of tergum X long, extending to or beyond apex of tergum X; preanal appendage very short, shorter than wide ( Fig. 14 View FIGURE 14 ) ................................................................................. Triaenodes guadaloupe n. sp. Phallus with three parameres; dorsomesal process of tergum X short, less than or about half length of tergum X; preanal appendage long, at least twice as long as wide ( Fig. 20 View FIGURE 20 ).................................................................... Triaenodes morai n. sp.