Alurnus secernendus Uhmann 1932b

Staines, C. L., 2013, A review of the genus Alurnus Fabricius, 1775 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2013 (291), pp. 1-34 : 22-23

Alurnus secernendus Uhmann 1932b

( Figure 20)

Alurnus secernendus Uhmann 1932b: 264 [holotype: Ecuador, Macas (DEI)]. Fischer 1935: 271 (revision); Blackwelder 1946: 721 (faunal list); Papp 1953: 34 (catalog); Uhmann 1957a: 40 (catalog); Gaedike and Döbler 1971: 359 (types); Staines 1997: 412 (Uhmann species list).

Description. Head, antennae, scutellum, tibiae, tarsi, and venter (except last 2 abdominal sterna paler) black; femora reddish (except apex black); pronotum yellow with large black medial spot; elytra yellow with lateral and apical margins black, with suture black, with wide basal sutural vitta which is obsolete before middle, with a black oblique humeral vitta which is obsolete at middle, with transverse black band after middle which does not extend to suture or lateral margin. Head: vertex punctate, not depressed between eyes, narrow medial sulcus present, row of setae present on inner margin of each eye; front and clypeus punctate, each puncture with pale seta. Antenna: antennomere 1 subglobose, slightly longer than 2; 2 transverse; 3-10 cylindrical; 3 more than 2x length of 1 and 2 combined; 4 length 0.75x length of 3; 5 slightly shorter than 4; 6 length 0.75x length of 5; 7 subequal in length to 6; 8 length 0.5x length of 7; 9-10 decreasing in length; 11 subequal in length to 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 evenly arcuate base to apex; anterior angle rounded; posterior angle acute; small tooth on apical margin on each side of head; disc sparsely irregularly punctate; punctures more dense laterally, surface irregular; basal impression absent; glabrous; pronotal length 3 mm; pronotal width 4 mm. Scutellum: cordate; impunctate. Elytron: lateral and apical margins smooth, slightly explanate; apical margin with fringe of setae; sutural angle with small tooth; humerus prominent, rounded; without costae; elytral length 14 mm; elytral width 7 mm. Leg: femur and tibia punctate, glabrous; tibia with fringe of golden setae on inner apical margin. Venter: pro-, meso-, and metasterna punctate medially, each puncture with pale seta, rugose laterally; abdominal sterna punctate, each puncture with pale seta. Total length: 17-20 mm.

Larval host plant. Unknown.

Distribution. Ecuador.

Specimens examined. Ecuador. No further data, ix-x.1894 (USNM, 2); Santo Domingo, VI-82 (PMNH, 1), III-83 (PMNH, 1). Total: 4.