Trigonoschema Crispolon & Soulier-Perkins, 2021
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publication ID |
https://doi.org/ 10.5852/ejt.2021.778.1571 |
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publication LSID |
lsid:zoobank.org:pub:7A844BA1-CBC8-437D-8110-E1C598778057 |
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DOI |
https://doi.org/10.5281/zenodo.5706017 |
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persistent identifier |
https://treatment.plazi.org/id/C8299091-60D3-49B4-852F-2145956D7FE9 |
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taxon LSID |
lsid:zoobank.org:act:C8299091-60D3-49B4-852F-2145956D7FE9 |
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treatment provided by |
Felipe |
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scientific name |
Trigonoschema Crispolon & Soulier-Perkins |
| status |
gen. nov. |
Trigonoschema Crispolon & Soulier-Perkins gen. nov.
urn:lsid:zoobank.org:act:C8299091-60D3-49B4-852F-2145956D7FE9
Figs 12–16 View Fig View Fig View Fig View Fig View Fig
Type species
Trigonoschema manoborum sp. nov. here designated.
Diagnosis
In dorsal view, teardrop shaped and apex of tegmen not visible due to folding. In lateral view, very steeply declivous pronotum and crown of the head, nearly form a right angle with the rest of the dorsum in profile.
Etymology
When observed in dorsal view, the general shape of the habitus fits in a triangle even if a closer observation would lead to describe it as teardrop shaped. The name is built using two greek words “trigonos” for triangular and “schema” for shape. It is neutral.
Description
BODY. Length 9.5–12.5 mm (tegmen included), width 4–5 mm.
GENERAL SHAPE. Not dorso-ventrally flattened, in lateral view total length around 3 times height ( Figs 2B View Fig , 12–16A View Fig View Fig View Fig View Fig View Fig ). Ocelli small, distance between eyes 9–10.5 times ocellus diameter ( Figs 1 View Fig , 12–16B View Fig View Fig View Fig View Fig View Fig ). Distance between ocellus and compound eye less than 4 times ocellus diameter (( Figs 1 View Fig , 12–16B View Fig View Fig View Fig View Fig View Fig ). Distance between ocelli 1.5 ocellus diameter ( Figs 1 View Fig , 12–16B View Fig View Fig View Fig View Fig View Fig ). Postclypeus with longitudinal furrow, swollen laterally and slightly ovoid shape in frontal view, widest part close to frons, not receding and prior to anteclypeus where it bends rounded in lateral view, with wide longitudinal furrow ( Figs 1 View Fig , 12–16B View Fig View Fig View Fig View Fig View Fig ). Pronotum curving around 45º angle ( Figs 2B View Fig , 12–16A View Fig View Fig View Fig View Fig View Fig ). Tegmen translucid without concave apical cells. Apical curve of tegmen rarely visible in dorsal view, tegmen folded in such a way that widest part of habitus is before midlength of tegmen ( Figs 12–16C View Fig View Fig View Fig View Fig View Fig ).
MALE TERMINALIA. Subgenital plates without fine appendage ( Fig. 12F View Fig ), if present shorter than main plate, not forming an acute angle shape with the main plate ( Figs 14 View Fig , 16F View Fig ). Paramere globose, lateral margin of paramere with protrusion, on the ventral margin on the sub apex with angular protrusion ornamented with set of setae ( Figs 12 View Fig , 14 View Fig , 16G View Fig ). Pp of aedeagus thick and beak-like shape ( Figs 12 View Fig , 14 View Fig , 16H View Fig ).
Distribution
Philippines.
Key to the species of Philippine Trigonoschema gen. nov.
1. Most of vertex and frons bright yellow and postclypeus orange ( Figs 12–13 View Fig View Fig ) ................................... ......................................................................... T. manoborum Crispolon & Soulier-Perkins sp. nov.
– Vertex, frons and postclypeus of the same color that can be brown, orange or red ( Figs 14–16 View Fig View Fig View Fig )..... 2
2. Red band running across base of tegmen and scutellum ( Fig. 16 View Fig ) ...................................................... ........................................................................................ T. rubercella Crispolon & Guilbert sp. nov.
– No red band visible in dorsal view ( Figs 12–13 View Fig View Fig )............................................................................... 3
3. Scutellum yellow ( Fig. 14 View Fig ) .................................................. T. negrosensis Crispolon & Yap sp. nov.
– Scutellum brown ( Fig. 15 View Fig )................................................... T. pallida ( Lallemand, 1927) comb. nov.
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