Bruchia armata Staines, 2007

Staines, C. L., 2007, A review of the genus Bruchia Weise 1906 (Coleoptera: Chrysomelidae: Cassidinae), Zootaxa 1449 (1), pp. 45-50 : 46

Bruchia armata Staines , new species

Figure 1

Holotype: Peru, Madre de Dios, Zona Reserva Manu, Pakitza , 400 meters, 11°57’S 71°17’W, 28 Feb.–4 Mar. 1992 / Collected by B. Brown & D. Feener, Malaise trap #1 / Holotype Bruchia armata Staines 2006 [red label] ( USNM) . Paratypes (5, each with Paratype Bruchia armata Staines 2006 [red label]: Brazil, Taperina / F. Monros Collection 1959 ( USNM) ; Colombia, Amazonas, PNN Amacayacu, San Martín , 50 m, Malaise , 12– 19.vi.2000, B. Amado Leg, M.697 ( IVAH) ; same locality but date 20-iv–5-v.2000, M.694 ( IVAH) ; Putumayo, PNN La Paya Faca. Charapa , 0°08’S 74°57’W, 330 m, malaise, 28.iv–14.v.2002, R. Bobete Leg., M. 3243 ( IVAH) ; Putumayo, PNN La Paya, Viviano Cocha Camino Cecilio Cocha , 0°08’S 74°57’W, 230 m, malaise, 26–29.i.2003, C. Sarmiento & M. Macanilla Leg., M.3414 ( IVAH) .

Large for genus; brownish-yellow with variable darker bands; antennae and legs yellowish. Head: vertex micropunctate; medial sulcus present; ocular sulcus present; few scattered punctures along medial sulcus. Antenna: reaching to base of pronotum; antennomere I rounded, shorter than II; II elongate; III ¾ length of II, cylindrical; IV–VI transverse, each wider than the preceding; VII longest, elongate, acutely pointed at apex. Pronotum: lateral margin angulate behind middle, straight and divergent for basal 2/3s then rounded and convergent, slight notch before anterior angle; anterior angle with rounded tooth; posterior angle acute; convex; coarsely densely punctate; slightly constricted behind disc; punctures on disc less impressed than laterally; medial longitudinal sulcus present; basal margin nearly impunctate; pronotal length 0.6–0.7 mm; pronotal width 0.7–0.9 mm. Scutellum: quadrate; micropunctate. Elytron: lateral margin dentate, slightly expanding apically; apical margin smooth, slightly explanate; humerus produced, angulate; 8 rows strongly impressed punctures plus short scutellar row; puncture rows 3–4 reduced to 1 row near middle; puncture rows 5–6 in expanded to two additional rows in pit after middle; interspace 2 costate for entire length; interspace 4 costate for entire length, curving toward suture near middle; additional costa at humerus, joins costa of interspace 4, just behind humerus, irregularly costate after middle, with transverse costae joining interspace 4; interspace 6 costate from behind humerus, costa sinuate; elytral length 2.1–2.3 mm; elytral width 1.3–1.4 mm. Leg: profemur with large acute tooth on outer margin, meso- and metafemora with tooth on inner margin; tibia with fringe of setae at apex, mesotibia with large tooth on inner margin at apex; surface of tibia and femur punctate. Venter: pro-, meso-, and metasterna dark, abdominal sterna brownish-yellow; mesosternum punctate medially, granulose laterally; meso- and metasterna granulose; abdominal sterna granulose, apex of sternite 4 and base of sternite 5 darker. Total length 3.0– 3.1 mm.

Etymology. From arma (Latin= weapons) for the tooth on the femora of this species.

Comparative notes. This species is easily distinguished by the tooth on each femur. The vertex of the head is micropunctate; the lateral margin of the pronotum is angulate beyond the middle; elytra puncture rows 3–4 reduced to a single row beyond the middle, and rows 5–6 expanded to four rows beyond the middle.

Distribution. Brazil, Colombia, and Peru.

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.