Adalurnus Maulik 1936: 392

Type Species

Adalurnus rotundatus Maulik.

Diagnosis

Adalurnus can be distinguished by the following combination of characters:

• the lateral margin of the 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 the elytra lacking long, stiff spines
• the head lacking a frontal horn
• the 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
  having a tuft of setae in each angle
• the antennae having 11-antennomeres, filiform
• the elytral punctures not being in regular rows
• the elytra lacking costae
• the 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
  being nearly as wide as the base of the pronotum
• the body being nearly oval.

Description

Large (13-25 mm); body broad, nearly as wide as long, convex, in side view, highest point just behind middle.

Head: concave between eyes; mandible large, convex.

Antenna: with 11-antennomeres.

Pronotum: almost as wide as base of elytra, shinier than elytra; finely and sparsely punctate; with tuft of setae in each angle.

Scutellum: pentagonal; impunctate.

Elytron: duller than 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
; confusedly and moderately punctate, punctures closely spaced; costae absent; lateral and apical margins smooth, expanded.

Venter: almost glabrous; shining; prosternumprosternum:
contains two anterior coxal cavities
with anterior margin convex, expanded to conceal lower mouthparts; with 5 visible abdominal sterna.

Leg: fairly robust; sparsely covered with fine setae; generally not visible from above; femurfemur:
largest part of the leg; more or less cylindrical, attached at base to trochanter and at apex to tibia
widest in middle; tibiatibia:
variable in length; joins femur and tarsus
wider at apex, setose at apex; tarsi large, broad, thick setae beneath; tarsomere 1 small; 2 bilobed; 3 longer than 2; 4 long but not projecting past 3; claws simple, strong.

Distribution

Brazil.

World Fauna

Number of species: 1 (Staines 2012)- Adalurnus rotundatus Maulik.

Hosts

Unknown.

References

Maulik, S. 1936. A new Brazilian hispine beetle. The Annals and Magazine of Natural History (10)18: 392‑397.

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