Yakuhananomia
Kôno, 1935
Species Guides
1- Yakuhananomia bidentata(Two-toothed Tumbling Flower Beetle)
Yakuhananomia is a of tumbling flower beetles ( Mordellidae) containing at least seven described distributed across North America, Central America, East Asia, and São Tomé and Príncipe. The genus was established by Kôno in 1935. Species in this genus exhibit the characteristic wedge-shaped body form and tumbling escape typical of Mordellidae.
Pronunciation
How to pronounce Yakuhananomia: /jɑːkuːhəˌnɒmiə/
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Identification
Members of Yakuhananomia share the -wide diagnostic features of Mordellidae: a wedge-shaped, somewhat humpbacked body with a pointed that aids in the tumbling escape response. Specific distinguishing features for the relative to other Mordellidae genera are not documented in available sources. -level identification requires examination of subtle morphological characters such as antennal structure, punctation patterns, and male genitalia.
Images
Distribution
The has a disjunct distribution spanning: North America (Y. bidentata), Mexico and Central America (Y. fulviceps, Y. interrupta), Japan and East Asia (Y. yakui, Y. uenoi), and São Tomé and Príncipe in the Gulf of Guinea (Y. ermischi). Y. luteoguttata has a recorded type locality but specific modern distribution data is not confirmed in available sources.
Behavior
As members of Mordellidae, in this exhibit the characteristic tumbling —when disturbed, they use their pointed as a lever combined with rapid leg movements to spring into the air and tumble unpredictably, making capture difficult.
Similar Taxa
- Other Mordellidae generaYakuhananomia share the wedge-shaped body and tumbling with all Mordellidae, requiring detailed morphological examination to distinguish at the level.
More Details
Etymology
The name combines 'Yaku' (from the type Y. yakui, itself named after Yakushima Island, Japan) with 'hananomia', a common suffix in Mordellidae genus names.
Taxonomic history
The was established by Kôno in 1935 with Y. yakui as the type . Species have been subsequently transferred into the genus from other Mordellidae genera based on morphological revisions.