Enischnispa Gressitt 1957b: 274

Synonomys

None.

Type Species

Enischnispa calamivora Gressitt.

Diagnosis

Enischnispa 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 without long, stiff spines
• head without frontal horn between antennae
• 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 seta in each angle, flattened, slightly constricted basally and apically, lateral margin narrowly margined
• anterior margin of prosternumprosternum:
  contains two anterior coxal cavities
  not projecting forward, not partly covering mouth
• less than 14 mm in length
• elytra without transverse carinae forming an irregular net-like sculpture; interspaces 2, 4, and 8 costate, 6 prominent, concealing lateral margin in dorsal view, with 10 rows of punctures at base, 8 medially, 9 apically
• antennae with 8-antennomeres

Description

Narrow; subparallel; slightly convex; yellow with black markings or totally black; length 2.7 to 3.4 mm.

Head: large; vertexvertex:
occupies the area behind and between the eyes
slightly depressed, medial carina present; with blunt projection between antennal bases; fronsfrons:
upper anterior portion of head capsule above the clypeus
moderately developed; clypeusclypeus:
usually quadrangular, elongate; joined to the labrum
slightly emarginate; eyeeye:
elongate, slightly prominent, multifaceted; usually slightly kidney-shaped
large, convex.

Antenna: ⅔ body length; with 8-antennomeres, slightly thickened apically; antennomeres 1 and 2 subequal in length; 1 subglobose; 2 slightly swollen apically; 3 longer than 2; 4 to 7 shorter; 8 as long as 4 to 7 combined, broadly rounded apically.

Pronotum: longer than wide; slightly constricted basally and apically; lateral margin curved, narrowly margined; anterior angle acute; anterior margin straight; posterior angle acute; posterior margin bisinuate; surface deeply punctate.

Scutellum: longer than wide; narrowed; subtruncate at apex.

Elytron: lateral margin straight, smooth; exterior apical angle rounded; apex rounded; sutural angle with small tooth; humerus rounded, not produced, slightly constricted behind humerus; with 10 rows of punctures at base, 8 rows medially, 9 apically, scutellar row absent; interspaces 2, 4, and 8 strongly costate, 6 prominent concealing lateral margin in dorsal view.

Venter: sparsely punctate.

Leg: short; robust; tibiatibia:
variable in length; joins femur and tarsus
truncate at apex.

Distribution

Bismark Archipelago, New Guinea.

World Fauna

Described species: 5 (Staines 2012). Key: Gressitt 1957b, Gressitt & Samuelson 1990.

Hosts

Calamus (Araceae); Daemonorops (Arecaceae); Pandanus (Pandanaceae).

References

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

Gressitt, J. L. & G. A. Samuelson. 1990. Hispinae of the New Guinea‑Solomons Area. II. Tribe Coelaenomenoderini (Coleoptera: Chrysomelidae). BishopMuseum Occasional Papers 30:259‑278.

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