Oecetis pseudoamazonica, Martín, Paola Rueda, Gibon, Francois-Marie & Molina, Carlos Israel, 2011
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publication ID |
https://doi.org/ 10.5281/zenodo.277232 |
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DOI |
https://doi.org/10.5281/zenodo.6186099 |
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persistent identifier |
https://treatment.plazi.org/id/03C687EA-FFB9-FFD6-FF40-AA927189FA51 |
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treatment provided by |
Plazi |
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scientific name |
Oecetis pseudoamazonica |
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Key to the males of Oecetis View in CoL species from Mexico, Central and South America
It is recommended that the user of this identification key refer to the original descriptions of species to corroborate species determinations. Because some species of Oecetis show variations, identifications may be difficult using only an identification key. For example, in the O. avara Group, differences among O. avara , O. metlacensis , O. marquesi , O. elata and O. inconspicua are subtle. Furthermore, the structure of membranous tergum X can be difficult to recognize. All characters in this identification key are visible in the lateral view of the male genitalia, except for O. amazonica and O. pseudoamazonica n.sp., in which case characters of wings are used. Oecetis haitises Flint & Sykora (2004) , from Hispaniola ( Dominican Republic), is known only from the female holotype.
1 Phallic apparatus spherical, not curved; paramere spine long, sinuous ( Figs 1 View FIGURE 1 E–F).................................. 2
1’ Phallic apparatus cylindrical and generally curved ( Figs 2 E–F); paramere spine present or absent, but if present not long, sinu- ous ( Figs 2 E–F)....................................................................................... 6
2(1) Tergum X slightly broader at base and narrower at tip in dorsal view ( Figs 6 View FIGURE 6 C, 7C); inferior appendages each broad at base with elongate apical process longer than width of appendage in lateral view ( Figs 6 View FIGURE 6 B, 7B) and usually with dorsal process slen- der and nearly parallel with apical process ( Fig. 6 View FIGURE 6 B).......................................................... 3
2’ Tergum X with same width from base to tip ( Figs 1 View FIGURE 1 C, 11C); inferior appendages each broad at base with apical process shorter than width of appendage and with dorsal process shorter than wide and in nearly 90° angle with apical process ( Figs 1 View FIGURE 1 B, 11B).................................................................................................... 5
3(2) Length of each inferior appendage more than 3 times maximum width ( Bueno-Soria 1981, fig. 2).............................................................................................. O. pseudoinconspicua Bueno-Soria.
3’ Length of each inferior appendage no more than 2.5 two times maximum width ( Figs 6 View FIGURE 6 B, 7B)........................ 4
4(3’) Dorsal process of each inferior appendage slender, about as narrow as apical process in lateral view, projecting apicad ( Fig. 6 View FIGURE 6 B).................................................................................... O. excisa Ulmer. View in CoL
4’ Dorsal process of each inferior appendage broader than apical process, not projecting ( Fig. 7 B)... O. inconspicua (Walker) View in CoL .
5(2’) Each forewing with apical margin rounded, fork I petiolate, coloration pattern sharp, apically much darker than base ( Fig. 1 View FIGURE 1 A); acrotergite of segment IX clearly separated by well developed and straight antecosta from rest of segment IX ( Fig. 1 View FIGURE 1 C)........................................................................................ O. amazonica (Banks) View in CoL .
5’ Each forewing with apical margin acute, fork I sessile, coloration pattern with less contrast, apically darker than base but not contrasting as strongly ( Fig. 11 View FIGURE 11 A); acrotergite of segment IX forming anterior indentation in dorsum of segment IX behind weakly developed and curved antecosta ( Fig. 11 View FIGURE 11 C)................................ O. pseudoamazonica , new species.
6 (1’) Segment IX with lateral processes elongated ( Fig. 13 View FIGURE 13 B; Flint 1981, figs 148–149).................................. 7
6’ Segment IX lateral processes not elongated ( Figs 2 B; Flint 1974, fig 273)........................................ 10
7(6) Segment IX with lateral processes as long as half of tergum X ( Denning 1951, fig. 1A)............. O. arizonica Denning. View in CoL
7’ Segment IX with lateral processes almost as long as tergum X, if not, longer than half as long as tergum X ( Fig. 13 View FIGURE 13 B)..... 8
8 (7’) Segment IX with lateral processes long, branched, arising more nearly dorsally from segment IX ( Denning & Sykora 1966, fig. 10).................................................................................. O. falicia Denning. View in CoL
8’ Segment IX with lateral process unbranched, arising laterally from segment IX ( Fig. 13 View FIGURE 13 B)........................... 9
9 (8’) Segment IX with lateral processes decurved at tip; tergum X with dorsal part long and slender, ventral part with broad base and narrow apex; inferior appendages narrow at base and slightly broader at tip ( Flint 1981, fig. 148)....... O. prolongata Flint. View in CoL
9’ Lateral processes of segment IX straight; tergum X with dorsal part short and ventral part broad and membranous; inferior appendages broad at base and narrowed at tip ( Fig. 13 View FIGURE 13 B).......................................... O. rafaeli Flint. View in CoL
10(6’) Inferior appendages each with dorsal preapical lobe rounded or digitate ( Figs 2 B, 4B, 8B).......................... 11
10’ Inferior appendages each with shallow dorsal preapical lobe or without dorsal preapical lobe ( Figs 3 View FIGURE 3 B, 5B)............. 25
11(10) Inferior appendages each with dorsal lobe bearing digitate projections in dorsal margin or with dorsal margin irregular with strong spines ( Figs 4 B, 8B)............................................................................ 12
11’ Inferior appendages each with dorsal lobe without digitate projections in dorsal margin, dorsal margin smooth ( Figs 2 B).. 15
12(11) Inferior appendages each with dorsal lobe curved, hook-shaped ( Bueno-Soria 1981, figs 8–9)....... O. silviae Bueno-Soria. View in CoL
12’ Inferior appendages each with dorsal lobe straight or rounded ( Figs 4 B, 8B)...................................... 13
13(12) Inferior appendages each with apical process apparently absent in lateral view, reduced to a small setose process before mid- line in ventral view ( Fig. 4 B)........................................................ O. chipiriri , new species.
13’ Inferior appendages each with apical process digitate in lateral view ( Fig. 8 View FIGURE 8 B)..................................... 14
14(13’) Inferior appendages each with dorsal process broadened, apically bearing digitate small subequal lobes; apical process curved ( Chen 1992, fig. 7.32A)................................................................ O. punctata (Navás) View in CoL .
14’ Inferior appendages each with dorsal process regularly broad from base to apex, apically bearing digitate small and broader lobes; apical process straight ( Fig. 8 View FIGURE 8 B)........................................................ O. knutsoni Flint. View in CoL
15(11’) Inferior appendages each with dorsal lobe high ( Fig. 2 B)..................................................... 16
15’ Inferior appendages each with dorsal lobe short ( Figs 9 View FIGURE 9 B, 10B, 14B)........................................... 22
16(15) Tergum X with dorsal process digitate or absent, shorter than inferior appendages ( Fig. 2 B).......................... 17
16’ Tergum X with dorsal process slender, longer than or as long as inferior appendages ( Flint 1974, fig. 271).............. 21
17(16) Tergum X with dorsal process ( Fig. 2 B)................................................................... 18
17’ Tergum X with dorsal process absent ( Denning & Sykora 1966, figs 9, 9A)...................................... 20
18 (17) Tergum X with ventral lobe inconspicuous, rounded at apex in lateral view ( Bueno-Soria 1981, fig. 5)...................
.............................................................................. O. metlacensis Bueno-Soria. View in CoL 18’ Ventral lobe of tergum X subtriangular in lateral view ( Figs 2 B, Smith & Lehmkuhl 1980, figs 1, 3)................... 19
19(18’) Inferior appendages each with apical process digitate ( Figs 2 B; Smith & Lehmkuhl 1980, fig. 3)......... O. avara (Banks) View in CoL .
19’ Inferior appendages each with apical process absent ( Smith & Lehmkuhl 1980, fig. 1).............. O. disjuncta (Banks) .
20(17’) Inferior appendages each with apical process inconspicuous ( Denning & Sykora 1966, figs 9, 9A).................................................................................................... O. elata Denning & Sykora. View in CoL
20’ Inferior appendages each with apical process slender, digitate ( Bueno-Soria 1981, fig. 7)........ O. marquesi Bueno-Soria. View in CoL
21(16’) Inferior appendages each with dorsal process slender, apically blunt, curved; apical process arising ventrally and pointed cau- dad; basal area normal not inflated ( Flint 1974, fig. 271)......................................... O. bilobosa Flint. View in CoL
21’ Inferior appendages each with dorsal process shallow and rounded; apical process apparently absent; basal area broad and inflated ( Flint 1974, fig. 272)................................................................ O. inflata Flint. View in CoL
22(15’) Phallic apparatus elongated twice the length of inferior appendages ( Flint 1974, fig. 273)............. O. doesburgi Flint.
22’ Phallic apparatus short as long or shorter than inferior appendages ( Fig. 14 B)..................................... 23
23(22’) Tergum X with dorsal digitate lobe and ventral subtriangular lobe with ventroapical indentation ( Fig. 14 B).................................................................................................. O. traini , new species.
23’ Tergum X with dorsal lobe absent, ventral lobe variable but without ventroapical indentation ( Fig. 9 View FIGURE 9 B, 10B)............ 24
24(23’) Tergum X triangular in lateral view; inferior appendages each with apical process curved; margin between apical process and dorsal preapical process rounded ( Fig. 9 View FIGURE 9 B)............................................ O. oberdorffi , new species.
24’ Tergum X suddenly narrowed from midlength to tip; inferior appendages each with apical process straight; margin between apical process and dorsal preapical process angulated ( Fig. 10 B)................................. O. paranensis Flint. View in CoL
25(10’) Tergum X divided into a dorsal unique lobe and paired ventral lobes ( Fig. 3 View FIGURE 3 B).................................... 26
25’ Tergum X constituted only by paired lobe ( Figs 5 B, 12B).................................................... 31
26(25) Tergum X with ventral paired lobes subtriangular ( Fig. 3 View FIGURE 3 B)................................................... 27
26’ Tergum X with ventral paired lobes rounded or digitate ( Flint, 1974, fig. 269)................................... 30
27(26) Inferior appendages subtriangular, broad at base and narrowed at tip, twice as long as wide ( Botosaneanu 1977, fig. 108).................................................................................. O. maspeluda Botosaneanu. View in CoL
27’ Inferior appendages elongated, slightly broad at base and narrowed at tip 3 or more times as long as wide ( Fig. 3 View FIGURE 3 B)...... 28
28(27’) Tergum X with dorsal process half as long as ventral paired lobe; inferior appendages each with truncated apex ( Fig. 3 View FIGURE 3 B)................................................................................ O. carlibanezae , new species.
28’ Tergum X with dorsal lobe as long as ventral paired lobe; inferior appendages with acute or rounded apex ( Flint 1967a, figs 108, 109)........................................................................................... 29
29(28’) Dorsal lobe of tergum X slightly broader at apex; inferior appendages each with apical process slightly downcurved, narrowed at tip with acute apex ( Flint 1967a, figs 108, 109)........................................... O. peruviana (Banks) View in CoL .
29’ Dorsal lobe of tergum X digitate; inferior appendages with apical process directed dorsally, not narrowed at tip with rounded apex ( Denning 1947, fig. 1A).............................................................. O. pratti Denning. View in CoL
30(26’) Ventral lobe(s) of tergum X rounded; inferior appendages narrowed at tip with rounded apex ( Flint, 1974, fig. 269)................................................................................................ O. scoparia Flint. View in CoL
30’ Ventral lobe of tergum X slender; inferior appendages narrowed at the tip with acute apex ( Ross 1944, fig. 822A)........................................................................................... O. cinerascens (Hagen) View in CoL .
31(25’) Tergum X fused with preanal appendages ( Flint 1974, fig. 267)................................... O. connata Flint. View in CoL
31’ Tergum X not fused with preanal appendages ( Figs 5 B, 12B).................................................. 32
32(31’) Inferior appendages each with same with from base to tip ( Flint 1983, fig. 250)........................ O. iguazu Flint. View in CoL
32’ Inferior appendages each broad at base and narrowed from midlength to tip ( Figs 5 B, 12B).......................... 33
33(32’) Tergum X broad at base and narrowed at tip, with digitate apical areal en lateral view ( Fig. 5 B). O. dominguezi , new species.
33’ Tergum X broad from base to tip with rounded apex ( Fig. 12 B).............................. O. punctipennis (Ulmer) View in CoL .
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