Trigava peruensis Song, O'Brien & Bartlett, 2024
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publication ID |
https://dx.doi.org/10.3897/zookeys.1188.89881 |
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publication LSID |
lsid:zoobank.org:pub:0009E896-5A8F-4522-BE77-B5A25995122F |
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persistent identifier |
https://treatment.plazi.org/id/F2AA6095-E279-4772-A1B8-CE3F0B2774F3 |
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taxon LSID |
lsid:zoobank.org:act:F2AA6095-E279-4772-A1B8-CE3F0B2774F3 |
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treatment provided by |
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scientific name |
Trigava peruensis Song, O'Brien & Bartlett |
| status |
sp. nov. |
Trigava peruensis Song, O'Brien & Bartlett sp. nov.
Figs 1E View Figure 1 , 2E View Figure 2 , 6A-J View Figure 6
Type locality.
Peru, Department of Cuzco, Cosñipata Valley.
Type material.
Holotype ♂, Peru: "Peru, Dep Cuzco, Cosnipata-Ebene, 1000 m, XI-XII-[19]00, S.V. Garlepp leg." (MFNB; dry-mounted, pinned).
Diagnosis.
Trigava peruensis sp. nov. is externally similar to T. brachycephala , but can be separated from the latter by the gonostyles with the dorsal process elongate and the hook-like process placed more basally and curved apicad (dorsal process short and hook-like process placed submedially and curved basad in T. brachycephala ), and the ventral lobes of the aedeagus with long spines (without long spines in T. brachycephala ). It can be distinguished from T. recurva by the shorter cephalic process curved upward about 90° in front of the eyes (the longer head curved upward about 60° in front of eyes in T. recurva ) and the ventral lobes of the aedeagus weakly trilobed (nearly cross-shaped in T. recurva ).
Description.
Measurements (in mm; 1♂). Body length from apex of head to tip of tegmina: 11.7; head length (includes: apex of cephalic process to constricted and curved part + from curved part to base of eyes): 0.3+1.1; head width including eyes: 1.6; tegmen length: 9.7.
Coloration. Head stramineous green, lateral carinae of vertex and frons reddish brown, intermediate carinae of frons in front of eyes black to reddish brown, lateral areas in front of eyes green. Pronotum and mesonotum stramineous green, upper lateral carinae of pronotum green. Tegmina and hindwings with membrane hyaline, costal margin dark brown, veins green to greenish yellow, pterostigmal area greenish ochraceous. Legs yellowish brown, base, apex and apical spines of tibiae fuscous. Abdomen dorsally and ventrally greenish ochraceous.
Structure. Head with cephalic process short, in lateral view (Fig. 6B View Figure 6 ), curved upward nearly 90° in front of eyes. Vertex (Fig. 6A View Figure 6 ) broad, with ratio of length at midline to width between eyes (1.1-1.2):1. Frons (Fig. 6C View Figure 6 ) flat, relatively broad, with ratio of length at midline to maximum width 2.2:1, intermediate and median carinae obscure.
Male genitalia. Pygofer in lateral view (Fig. 6E View Figure 6 ) with ratio of ventral to dorsal width about 2.0:1; posterior margin produced angulately near middle. Gonostyles (Fig. 6F View Figure 6 ) large and broad, dorsal process elongate, triangular, acute apically, more or less incurved and directed dorsoanteriad; hook-like process placed sub-basally, below dorsal process, curved apicad (Fig. 6G View Figure 6 ). Aedeagus (Fig. 6H-J View Figure 6 ) large and stout, endosomal processes curved dorsoanteriad; phallobase sclerotized and pigmented at lateral sides, membranous and slightly inflated dorsally and ventrally: dorsal lobes small, V-shaped at apex, directed posteriad; a pair of lateral lobes large and elongate, thumb-like, tapering apicad, apex with a large long spine, directed posterolaterad; ventral lobes large, weakly trilobed, base protruded laterad, with a large long spine, apex produced in a long triangular lobe, without spine, directed posteriad. Segment X (Fig. 6D, E View Figure 6 ), in dorsal view, with lateral margins more or less convex near middle, with ratio of length to width near middle about 2.1:1.
Female. Unknown.
Etymology.
The new species is named for its occurrence in Peru. The specific epithet ' Trigava peruensis ' is to be treated as a Latinized adjective in nominative singular.
Distribution.
Southeastern Peru.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.