Rhadinosa Weise 1905f: 318

Synonomys

Rhadinose Weise (misspelling).

Type Species

Hispa nigrocyanea Motschulsky.

Diagnosis

Rhadinosa can be distinguished by the following combination of characters:

• lateral margin of pronotumpronotum:
  occupies all of dorsal part of the prothorax; in anterior angles or posterior angles there may be a small tubercle or pore with a seta
  and elytra with long spines
• antennomere 1 with long spine
• pronotum pronotum:
  occupies all of dorsal part of the prothorax; in anterior angles or posterior angles there may be a small tubercle or pore with a seta
  with anterior margin with branched spine on each side
• tarsal claws not fused, symmetrical

Description

Body small, elongate; subparallel; subconvex; color black with metallic sheen; total length 2.4 to 5.6 mm.

Head: quadrate; convex; vertexvertex:
occupies the area behind and between the eyes
coarsely punctate to rugose, medial sulcus present.

Antenna: widening apically; reaches to base of pronotumpronotum:
occupies all of dorsal part of the prothorax; in anterior angles or posterior angles there may be a small tubercle or pore with a seta
; with 11-antennomeres; antennomere 1 incrassate, with long spine; 2 subglobose, short; 3 cylindrical, 2x length of 2; 4 to 10 transverse, subequal in length; 11 slightly longer than 10, rounded at apex.

Pronotum: transverse; lateral margin rounded, with 3 spines- 2 with common base and a single unbranched (2+1); anterior angle rounded, with small tooth; anterior margin curved, with branched spine on each side; posterior angle rounded; posterior margin bisinuate; surface rugose, with white setae.

Scutellum: cordate.

Elytron: lateral margin straight, with long spines; exterior apical angle rounded, with long spines; apical margin subtruncate, with long spines; humerus angulate, not produced; with 8 irregular rows of punctures plus scutellar row; disc with strong erect spines.

Leg: mesotibiae curved; tarsal claws not fused, symmetrical.

Distribution

Bhutan, China, India, Indonesia, Japan, Korea, Laos, Malaysia, Myanmar, Nepal, Russia, Thailand, Vietnam.

World Fauna

Described species: 12 (Staines 2012). Key: Maulik 1919; Gressitt 1950a, 1957b; Gressitt & Kimoto 1963a; Kimoto 1999.

Hosts

Arundinella, Centotheca, Digitaria, Miscanthus, Oryza, Saccharum, Zea (Poaceae).

References

Gressitt, J. L. 1950. The hispine beetles of China (Coleoptera: Chrysomelidae). Lingnan Science Journal 23(1-2):53-142.

Gressitt, J. L. 1957b. Hispine beetles from the South Pacific (Coleoptera: Chrysomelidae). Nova Guinea n. s. 8:205‑324.

Gressitt, J. L. & S. Kimoto. 1963a. The Chrysomelidae (Coleopt.) of China and Korea. Part 2. Pacific Insects Monograph 1B:301‑1026.

Kimoto, S. 1999. Chrysomelidae (Coleoptera) of Thailand, Cambodia, Laos and Vietnam. VI. Hispinae. Bulletin of the Institute of Comparative Studies of International Cultures and Societies 23: 59-159.

Maulik, S. 1919. Hispinae and Cassidinae of India, Burma and Ceylon. The fauna of British India. Taylor & Francis, London. 439 pp.

Staines, C. L. 2012. Tribe Cryptonychini. Catalog of the hispines of the world (Coleoptera: Chrysomelidae: Cassidinae). http://entomology.si.edu/Collections_Coleoptera.html

Weise, J. 1905f. Bemerkungen über Hispinen. Deutsche Entomologische Zeitschrift 1905:317‑320.