Bruchia scapularis Staines, 2007

Staines, C. L., 2007, A review of the genus Bruchia Weise 1906 (Coleoptera: Chrysomelidae: Cassidinae), Zootaxa 1449 (1), pp. 45-50 : 48-49

Bruchia scapularis Staines , new species

Figure 3

Holotype: Colombia, Meta, PNN Sumapaz Qda. La Cristalina , 3°48’S, 73°50’W, 614 m, Malaise, 20-viii– 5.ix.2003, H. Vargas Leg., M.4342 / Holotype Bruchia scapularis Staines 2006 [red label] ( IVAH) .

Pale yellow with brownish and whitish markings; basal two antennomeres dark, remainder brownish; apex of tibiae and tarsi darker. Head: medial fovea with strong medial sulcus continuing between antennae; vertex sparsely punctate. Antenna: barely reaching base of pronotum; antennomere I expanded to apex, granulose; II transverse, granulose, ¾ length of I; III subcylindrical, subequal in length to I; IV–VI transverse, each wider than preceding; VII elongate setose club, pointed at apex; III–VI punctate with setae; VII setose. Pronotum: convex; depressed basally; widest just behind anterior margin; lateral margin sinuate and divergent for basal ¾s then strongly angled and convergent; anterior angle with large rounded tooth; posterior angle acute; base strongly densely punctate; apex less densely punctate; slight medial longitudinal callus; pronotal length 0.6 mm; pronotal width 0.8 mm. Scutellum: quadrate, smooth. Elytron: lateral margin dentate, expanding to apex, slightly explanate; apical margin sparsely dentate, slightly explanate; humerus produced, angulate; 8 rows of deeply impressed punctures plus short scutellar row; puncture rows 5–6 expanded to additional rows in pit after middle; interspace 2 costate for entire length, with two large tubercules, the first on basal ¼ th, the second after middle, costa slightly sinuate; interspace 3 costate, more pronounced after base; interspace 6 costate on base and apex; elytral length 2.4 mm; elytral width 1.3 mm. Leg: tibia with row of setae on inner margin, tuft of setae at apex; femur impunctate. Venter: prosternum punctate medially, smooth laterally; meso- and metasterna smooth medially and sparsely punctate laterally; abdominal sternites impunctate with row of white setae apically. Total length 3.3 mm.

Etymology. From scapula (Latin= shoulder-blade) for the elevated humeral process of this species.

Comparative notes. This species is easily distinguished by the distinctly elevated humerus. The vertex of the head is punctate with a medial fovea; the lateral margin of the pronotum is angulate beyond the middle; and elytral puncture rows 5–6 are expanded after the middle.

Distribution. Colombia.

Figures

FIGURES 1–4. Figure 1. Bruchia armata Staines, new species, dorsal view. Figure 2. Bruchia fulvipes (Baly) dorsal view. Figure 3. Bruchia scapularis Staines, new species, dorsal view. Figure 4. Bruchia sparsa Weise, dorsal view. All bars on photos equal 1 mm.