Trichadenotecnum acutolingum, Yoshizawa & Aldrete & Mockford, 2008
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2008.00398.x |
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DOI |
https://doi.org/10.5281/zenodo.5492546 |
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persistent identifier |
https://treatment.plazi.org/id/7E7087BE-FFBB-BB34-FF16-FABE6854F93D |
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treatment provided by |
Felipe |
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scientific name |
Trichadenotecnum acutolingum |
| status |
sp. nov. |
TRICHADENOTECNUM ACUTOLINGUM View in CoL SP. NOV.
Material examined: Holotype. Male, Mexico: Nuevo León, Galeana, Cerro Potosí , 3090 m, 29.viii.1979, ANGA & M.C. Herrera ( UNAM) . Paratypes. 3 females, same data as holotype ( UNAM) .
Etymology: The specific epithet is taken from the latin acutus (= pointed) + lingua (= tongue), refering to the apically pointed hypandrial median tongue of this species.
Description: Male. Head. White in ground colour; vertical and orbital markings dark brown; coronal suture black; frontal suture dorsally bordered with pale brown band broadened externally; frons with two pairs of dark brown bands, internal pair darker; ventral half of gena dark brown; eye black, small, IO/D = 1.5; ocelli white, ocellar field black; antennal socket bordered with dark brown band; postclypeus with c. eight rows of blackish brown spots, fused with each other ventrally forming a large marking, ventrolateral corner white; anteclypeus dark brown. Antenna brown, pedicel and scape darker. Mouth parts brown.
Thorax. Prothorax brown. Meso- and metathorax mostly dark brown except membranous region white; mesonotum with white region medially, dorsal surface of anterior lobe and anterior region of lateral lobes of mesoscutum paler.
Legs. Brown; distal half of fore femur and tibiae of all legs paler; middle and hind coxae and hind femur dark brown.
Forewing ( Fig. 5B View Figure 5 ). Moderately spotted. Spots in cell a 1 distinct, distal spot larger. Opposing spots in cell r distinct but anterior one small, widely separated from each other. Proximal band faint, darker and distinct in cell CuP, just below fork of M + Cu and along vein M. Distal band faint but distinct. Spot on roof of cell m 3 small. Submarginal spots hardly distinct, spot in cell r 5 larger and distinct, spots in cells m 1 and m 2 distinct. Marginal clouds indistinct. Hindwing. Hyaline, cell CuP with faint sparse spots; veins brown.
Key to species of the desolatum group (Many unidentified specimens are not keyed out and thus will incorrectly fall into identified species. Refer to species diagnoses and illustrations of wing markings and genital structures for exact identification of species.)
1. Males ............................................................................................................................................ 6
– Females ......................................................................................................................................... 2
2. Anterior margin of body of subgenital plate apparently hollowed, with broad but relatively shallow (not or slightly exceeding middle of body of subgenital plate) membranous notch medially ( Fig. 7A View Figure 7 )....................................3
– Anterior margin of body of subgenital plate almost straight, with relatively deep (far exceeding middle of body of subgenital plate) and narrow membranous notch medially ( Fig. 15A View Figure 15 )........................... T. latipenne View in CoL sp. nov.
3. Egg guide of subgenital plate nearly parallel sided at apex, with almost straight apical margin ( Fig. 7A View Figure 7 ) ....... 4
– Egg guide of subgenital plate gradually narrowing apically, with rounded apical margin ( Fig. 9A View Figure 9 ) ...................................................................................................... T. acutolingum View in CoL sp. nov.
4. Egg guide with broad pale pigmented area medially ( Fig. 10A View Figure 10 ) ................................................................5
– Egg guide with narrow longitudinal pale pigmented area medially ( Fig. 12A View Figure 12 ) ........... T. longilingum View in CoL sp. nov.
5. Body of subgenital plate (excluding postero-lateral extension) shorter than egg guide, postero-lateral part strongly extended posteriorly ( Fig. 10A View Figure 10 ) ....................................................................... T. magnolingum View in CoL sp. nov.
– Body of subgenital plate longer than egg guide, postero-lateral part weakly extended posteriorly ( Fig. 7A View Figure 7 ) ........................................................................................................ T. desolatum (Chapman) View in CoL
6. Hypandrial right process shorter than or almost equal in length to left process ( Fig. 6C View Figure 6 ) .............................8
– Hypandrial right process longer than left process ( Fig. 8E View Figure 8 ) ..................................................................... 7
7. Hypandrial right process conical; hypandrial median tongue constricted medially, apical margin clearly bilobed ( Fig. 8E View Figure 8 )..................................................................................................... T. magnolingum View in CoL sp. nov.
– Hypandrial right process lamellate; hypandrial median tongue almost parallel sided, apical margin almost straight ( Fig. 13B View Figure 13 )............................................................................................. T. carinatum View in CoL sp. nov.
8. Apex of hypandrial median tongue with sharp triangular notch medially ( Fig. 6C View Figure 6 ) .................................... 10
– Apex of hypandrial median tongue with dull hollow ( Figs 11B View Figure 11 , 13E View Figure 13 )......................................................... 9
9. Hypandrial median tongue long and narrow, more than 4¥ longer than basal width ( Fig. 11 View Figure 11 ) ......................... ................................................................................................................... T. longilingum View in CoL sp. nov.
– Hypandrial median tongue short and broad, less than 3¥ longer than basal width ( Fig. 13E View Figure 13 ) ......................... ......................................................................................................................... T. tuitense View in CoL sp. nov.
10. Apex of hypandrial median tongue broad, clearly bilobed ( Fig. 6C View Figure 6 )..........................................................11
– Apex of hypandrial median tongue narrow, almost pointed, with small notch medially ( Fig. 8B View Figure 8 )...................... .................................................................................................................. T. acutolingum View in CoL sp. nov.
11. Epiproct lobe long, as long as or longer than basal width ( Fig. 6B View Figure 6 ) .........................................................12
– Epiproct lobe short, shorter than basal width ( Fig. 14D View Figure 14 )............................................ T. latipenne View in CoL sp. nov.
12. Hypandrial median tongue constricted medially ( Fig. 14B View Figure 14 ) .......................................... T. sparsum View in CoL sp. nov.
– Hypandrial median tongue parallel sided or gradually narrowing apically ( Fig. 6C View Figure 6 ) .... T. desolatum (Chapman) View in CoL
Abdomen. White, with sparse blackish brown spots. Terminalia. Clunial arm long and broad, distal end straight with short triangular extension dorsally. Epiproct lobe ( Fig. 8A View Figure 8 ) long and broad, slightly shorter than basal width, gradually narrowing to rounded dorsal margin. Hypandrium ( Fig. 8B View Figure 8 ): left process conical, strongly projected posteriorly, slightly curved; right process triangular, dorsally with longitudinal trench; median tongue with broad base, then narrowing to basal fourth, almost parallel sided from basal quarter to distal one-sixth then strongly narrowing to apex, tip with small notch. Phallosome ( Fig. 8C View Figure 8 ): pseudoparameres short and broad, expanded laterally, broadly separated. Phallobase narrowing anteriorly, with truncated anterior end.
Length. B 3.2; FW 5.8; HW 4.4.
Female. Colour and general morphology almost as in male; eye IO/D = 2.6. Genitalia: Egg guide of subgenital plate broad ( Fig. 9A View Figure 9 ), apically rounded, broader than length, body of subgenital plate with slightly hollowed anterior margin and with rather broad and shallow median membranous notch. Internal plate as in Figure 9B View Figure 9 .
Length. B 3.7; FW 4.8–5.0; HW 3.6–3.7.
Distribution: Mexico.
| UNAM |
Universidad Nacional Autonoma de Mexico |
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