Alurnus orbignyi Guérin-Méneville 1840, 1843

Staines, C. L., 2013, A review of the genus Alurnus Fabricius, 1775 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2013 (291), pp. 1-34 : 19

Alurnus orbignyi Guérin-Méneville 1840

( Figure 17)

Alurnus d’orbignyi Guérin-Méneville 1840: 331 [type: Bolivia, Santa Cruz, depository unknown]. Blanchard 1843a: plate 23, figure 6 (illustration); Guérin-Méneville 1855: 602 (faunal list); Thomson 1856: 118 (comparative note); Baly 1858: 28 (redescription); Berg 1900: 252 (faunal list); Weise 1910: 103 (key); Campos 1921: 96 (faunal list); Fischer 1935: 274 (revision); Günther 1940: 467 (noted); Blackwelder 1946: 721 (faunal list); Monrós and Viana 1947: 174 ( Argentina species); Uhmann 1964: 407 (catalog), 1966: 270 (nomenclature).

Alurnus orbignyi Guérin-Méneville. Blanchard 1843b: 211 (noted); Gemminger and Harold 1876: 3605 (catalog); Donckier 1899: 558 (catalog); Jacobson 1899: 248 (revision); Weise 1905: 336 (noted), 1911a: 13 (catalog), 1911b: 19 (catalog); Bruch 1915: 375 (faunal list), 1928: 202 (faunal list); Papp 1953: 33 (catalog); Uhmann 1964: 407 (catalog).

Alurnus iheringi var. A Weise 1910: 103 [type: Bolivia, St. Cruz de la Sierra (ZMHB?)]. Fischer 1935: 275 (revision); Papp 1953: 32 (catalog).

Alurnus orbignyi balyi Jacobson 1899: 247 [type: locality not specified (BMNH?)]. Weise 1911a: 14 (catalog), 1911b: 20 (catalog); Fischer 1935: 276 (revision); Blackwelder 1946: 721 (faunal list); Papp 1953: 33 (catalog).

Alurnus saundersii Baly 1858: 28 [holotype: Peru (BMNH)]. Baly 1869: 367 (noted); Gemminger and Harold 1876: 3605 (catalog); Waterhouse 1881: 265 (distribution); Jacobson 1899: 247 (revision), 1899(1900): x (noted); Staines and Staines 1999: 522 (Baly species list).

Alurnus saundersi Baly. Donckier 1899: 559 (lapsus calami, catalog); Weise 1905: 336 (synonymy).

Alurnus orbignyi saundersii Baly. Waterhouse 1881: 265 (noted); Jacobson 1899: 247 (revision); Weise 1905: 336 (noted), 1911a: 13 (catalog), 1911b: 20 (catalog); Fischer 1935: 275 (revision); Blackwelder 1946: 721 (faunal list); Papp 1953: 33 (catalog).

Alurnus iheringi Weise 1910: 103 [type: Brazil, Amazonas, Rio Jurua, 1901 (ZMHB?)]. Weise 1911a: 13 (catalog), 1911b: 19 (catalog); Fischer 1935: 275 (synonymy); Blackwelder 1946: 721 (faunal list).

Alurnus (Poecilalurnus) orbignyi Guérin-Méneville. Jacobson 1899: 248 (revision); Berg 1900: 252 (noted).

Description. Head, antennae, scutellum, legs, and venter shining black; pronotum reddish with black basal spot which varies greatly in extent; elytra pale yellow with a black central spot and narrow vitta along apical margin. Head: vertex irregularly sculptured, slightly rugose, densely punctate, medial sulcus present; front punctate; clypeus punctate, each puncture with pale seta. Antenna: antennomere 1 subglobose, longer than 2; 2 cylindrical, short; 3 cylindrical, more than 2x length of 1 and 2 combined; 4 cylindrical, 0.66x length of 3; 5 cylindrical, shorter than 4; 6-10 cylindrical, decreasing in length; 11 longer than 10, acutely pointed at apex; 1-10 punctate, each puncture with pale seta; 11 more densely punctate, each puncture with pale seta. Pronotum: lateral margin deeply sinuate at base then suddenly narrowed and notched just behind anterior angle, slightly margined; anterior angle obtuse; posterior angle with acute tooth; posterior half transversely depressed; central longitudinal sulcus extending from base to near apex; surface coarsely, densely punctate, less so on disc, variolose laterally, rugose basally; glabrous; pronotal length 5-7 mm; pronotal width 6-9 mm. Scutellum: cordate, 2x as long as wide; punctate. Elytron: lateral and apical margins smooth, narrowly margined; apex regularly rounded; sutural angle with small tooth; humerus prominent, slightly angulate; surface densely punctate; without costae; elytral length 21-30 mm; elytral width 10-14 mm. Leg: trochanter with tuft of setae on inner margin; femur and tibia punctate, each puncture with pale setae; tibia with fringe of golden setae at apex. Venter: prosternum depressed medially, punctate medially, each puncture with pale seta, impunctate laterally; meso- and metasterna slightly punctate medially and basally, each puncture with pale seta, impunctate laterally; abdominal sterna punctate, each puncture with white seta. Total length: 28-37 mm.