Alurnus lansbergei Sallé 1849

Staines, C. L., 2013, A review of the genus Alurnus Fabricius, 1775 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2013 (291), pp. 1-34 : 16

Alurnus lansbergei Sallé 1849

( Figure 14)

Alurnus lansbergei Sallé 1849: 432 [holotype: Venezuela, Caracas (MNHN)]. Fairmaire 1851: 349 (noted); Baly 1858: 28 (redescription); Chenu and Desmarest 1870: 341 (noted); Gemminger and Harold 1876: 3605 (catalog); Donckier 1899: 558 (catalog); Jacobson 1899: 251 (revision); Heyne and Taschenberg 1908: 252 (noted); Weise 1910: 103 (key), 1911a: 13 (catalog), 1911b: 19 (catalog); Fischer 1935: 266 (revision); Bryant 1942: 205 (faunal list); Blackwelder 1946: 721 (faunal list); Uhmann 1957a: 38 (catalog); Descarpentries and Villiers 1959: 142 (types).

Alurnus landsbergi Sallé. Papp 1953: 32 (lapsus calami, catalog).

Alurnus lansbergei juncta Pic 1934a: 155 [type: Venezuela, Caracas (MNHN)]. Fischer 1935: 267 (revision); Blackwelder 1946: 721 (faunal list); Descarpentries and Villiers 1959: 142 (types).

Alurnus lansbergei junctus Pic. Blackwelder 1946: 721 (faunal list).

Description. Head, antennae, scutellum, legs, and venter (except apical third of last abdominal sternite) bluish-black; pronotum reddish with apical and basal margins black; elytra yellow with black sutural vitta, black submarginal vitta, black oblique humeral vitta and black macula near end of humeral vitta. Head: transverse; rugose; vertex punctate, with deep medial sulcus, depressed behind eyes and antennae, with row of white setae on inner margin of each eye; front and clypeus punctate. Antenna: antennomere 1 subglobose; 2 transverse, 0.5x length of 1; 3-10 cylindrical; 3 length 2x length of 1 and 2 combined; 4- 5 subequal in length, combined subequal to 3; 6-10 decreasing in length; 11 longer than 10, rounded at apex; 1-11 punctate with a white seta in each puncture. Pronotum: lateral margin evenly arcuate from base to apex; anterior angle rounded; posterior angle acute; surface strongly, roughly punctate, transversely rugose basally; strong basal impression present medially; disc glabrous, with scattered setae present laterally; pronotal length 4-5 mm; pronotal width 5-6 mm. Scutellum: cordate; punctate, transversely rugose. Elytron: lateral and apical margins smooth, slightly explanate; sutural angle with small tooth; humerus produced, obtuse; regularly, finely punctate; with two weakly produced costae - costa 1 beginning at base and sinuate on apical quarter, costa 2 beginning at humerus and obsolete after middle; elytral length 16-19 mm; elytral width 9-10 mm. Leg: trochanter, femur, and tibia punctate, each puncture with white seta; tibia with fringe of setae on inner apical margin, slightly constricted at apex. Venter: pro-, meso-, and metasterna punctate, each puncture with seta medially, punctures glabrous laterally; abdominal sterna punctate, each puncture with pale seta. Total length: 20-24 mm.

Larval host plant. Unknown.

Distribution. Brazil, Colombia, Venezuela.

Specimens examined. No data ( USNM, 3; PSUC 1 ; NMW, 1; ZIN, 1). Brazil. No further data ( MHMB, 1). Colombia. No further data ( USNM, 1; NMW, 2; PSUC, 1). Venezuela. No further data ( BMNH, 9; PSUC, 2) ; 1858 ( NMW, 1). Aragua: Rancho Grande nr. Maracay , 1.vii.1946 ( AMNH, 1), 9.vii.1946 ( AMNH, 1). Total: 25 .