Alurnus ornatus Baly 1869

Staines, C. L., 2013, A review of the genus Alurnus Fabricius, 1775 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2013 (291), pp. 1-34 : 20

Alurnus ornatus Baly 1869

( Figure 18)

Alurnus ornatus Baly 1869: 87 [holotype: Nicaragua (BMNH)]. Gemminger and Harold 1876: 3605 (catalog); Baly 1885: 5 (Central America species); Donckier 1899: 558 (catalog); Jacobson 1899: 247 (revision); Weise 1910: 103 (key), 1911a: 14 (catalog), 1911b: 19 (catalog); Uhmann 1930: 237 (faunal list), 1957a: 40 (catalog), 1964: 407 (catalog); Fischer 1935: 269 (revision); Blackwelder 1946: 721 (faunal list); Jeannel 1949: 965 (noted); Papp 1953: 33 (catalog); Wilcox 1975: 138 (catalog); Maes and Staines 1991: 35 (faunal list); Staines 1996 ( 1997): 7 ( Nicaragua species), 2011: 48 (faunal list); Maes 1998: 1015 (faunal list); Staines and Staines 1999: 522 (Baly species list); McKenna and Farrell 2005: 121 (phylogeny).

Description. Head, antennae, scutellum, legs, and venter black; pronotum red with black apical and basal margins; elytra yellow with apical quarter, humeral callus, medial spot, and curved transverse fascia black. Head: vertex punctate, depressed between eyes, depression punctate, medial sulcus and four lateral sulci present; front and clypeus punctate, each puncture with pale seta. Antenna: antennomere 1 subglobose, larger than 2; 2 transverse, 0.5x length of 1; 3-10 cylindrical; 3 more than 3x length of 1 and 2 combined; 4-5 subequal in length, each 0.33x length of 3; 6-10 subequal in length, shorter than 4 or 5; 11 longer than 10, bluntly pointed at apex; 1-9 punctate, each puncture with pale seta; 10-11 more densely punctate, each puncture with pale seta. Pronotum: subcylindrical; narrowed anteriorly; transversely convex at base; lateral margin sinuate basally, arcuate from just beyond base; anterior angle rounded; posterior angle acute; basal half and lateral area coarsely, almost rugosely punctate; basal impression absent; glabrous; pronotal length 4-5 mm; pronotal width 5-6 mm. Scutellum: cordate; impunctate. Elytron: lateral and apical margins smooth, slightly explanate; sutural angle with small tooth; humerus prominent, rounded; surface sparsely, irregularly punctate; without costae; elytral length 15-20 mm; elytral width 9-11 mm. Leg: femur and tibia punctate, each puncture with pale seta; tibia with row of setae on inner margin and tuft of golden setae at apex. Venter: pro-, meso-, and metasterna punctate medially, each puncture with pale seta, rugose laterally; abdominal sterna punctate, each puncture with pale seta, last three with punctures more dense. Total length: 19-27 mm.