Vetuprostomis angularis Li & Cai, 2022
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publication ID |
https://doi.org/ 10.11646/zootaxa.5125.5.6 |
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publication LSID |
lsid:zoobank.org:pub:FC49517F-DD23-4281-A782-5BB6F9DC8560 |
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DOI |
https://doi.org/10.5281/zenodo.6457420 |
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persistent identifier |
https://treatment.plazi.org/id/03DB9B4D-FFD6-AF29-C98E-99BAFD9A96DA |
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treatment provided by |
Plazi |
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scientific name |
Vetuprostomis angularis Li & Cai |
| status |
sp. nov. |
Vetuprostomis angularis Li & Cai sp. nov.
( Figs 2–4 View FIGURE 2 View FIGURE 3 View FIGURE 4 )
Material. Holotype, NIGP177907 View Materials .
Etymology. The specific name refers to its projected anterior pronotal angles.
Locality and horizon. Amber mine located near Noije Bum Village, Tanai Township, Myitkyina District, Kachin State, Myanmar; unnamed horizon, mid-Cretaceous, Upper Albian to Lower Cenomanian.
Diagnosis. Lateral sides of clypeus subparallel in anterior half ( Fig. 4D View FIGURE 4 ). Left mandible with three apical teeth and two moderately separated teeth on incisor edge ( Fig. 4D View FIGURE 4 ). Penultimate maxillary palpomere about as long as apical one ( Fig. 4A,D View FIGURE 4 ). Jugal processes asymmetrical, comparatively long; right process longer than left one; inner sides with a tooth ( Fig. 4A View FIGURE 4 ). Median groove of pronotum probably absent ( Fig. 4E View FIGURE 4 ). Anterior angles of pronotum pointed ( Fig. 4E View FIGURE 4 ).
Description. Body elongate and flattened, about 5.2 mm long, 1.3 mm wide.
Head ( Fig. 3A,B View FIGURE 3 ) prognathous, constricted posteriorly, with distinct neck region. Temples distinctly projected posterolaterally. Eyes small, round and finely facetted, without interfacetal setae. Antennal insertions slightly concealed from above; subantennal grooves absent. Frontoclypeal suture not clearly discerned. Clypeus ( Fig. 4D View FIGURE 4 ) with lateral sides subparallel (or weakly diverging) in anterior portion; anterior margin truncate. Labrum ( Fig. 4D View FIGURE 4 ) narrowed anteriorly, apically truncate, with numerous elongate setae. Antennae 11-segmented, moniliform, with weak, 3-segmented club. Mandibles ( Fig. 4D View FIGURE 4 ) tridentate apically; left mandible with two moderately separated teeth on incisor edge; right mandible with one blunt tooth on incisor edge. Maxillary palps ( Fig. 4A View FIGURE 4 ) probably 4-segmented; palpomere 1 short; palpomere 2 elongate; palpomere 3 longer than wide, distinctly longer than half length of apical one. Mentum strongly transverse. Jugal processes ( Fig. 4A View FIGURE 4 ) asymmetrical; inner sides with a tooth; right process longer than left one, strongly constricted above tooth; left process weakly constricted above tooth.
Pronotal disc ( Fig. 4E View FIGURE 4 ) longer than wide; anterior angles pointed laterally; median groove not clearly discerned. Prosternal process ( Fig. 4B View FIGURE 4 ) wide, expanding beyond procoxae and meeting broad postcoxal projections, apically truncate. Procoxal cavities ( Fig. 4B View FIGURE 4 ) circular, widely separated. Elytra ( Fig. 3C View FIGURE 3 ) about 2.2 times as long as width combined; surface with longitudinal carinae. Mesoventrite ( Fig. 4C View FIGURE 4 ) relatively narrow. Mesocoxal cavities ( Fig. 4C View FIGURE 4 ) moderately separated.
Legs ( Fig. 4F View FIGURE 4 ) short. Femora distally with groove on inner side. Tibiae shorter than femora, widened apically with spinose outer apical angle; spurs large and stout, paired on all legs. Tarsi 4-4-4; tarsomeres simple, without ventral lobes. Pretarsal claws simple.
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.