Cephaloleia placida Baly

García-Robledo, Carlos, Horvitz, Carol C. & Staines, Charles L., 2010, Larval morphology, development, and notes on the natural history of Cephaloleia “ rolled-leaf ” beetles (Coleoptera: Chrysomelidae: Cassidinae), Zootaxa 2610, pp. 50-68 : 58

Cephaloleia placida Baly

Diagnosis: This species can be distinguished from the other three treated in this paper by the following combination of characters: dorsum with medial setose ridge, prothorax with central area micropustulate, mesothorax with transverse carina on each side, and venter with surface of expansions rugose-punctate.

Color when alive ( Fig. 14 ) brownish-yellow with body reddish, margins translucent, venter paler. Color when dead dirty-brown with paler margins. Dorsum with longitudinal medial setose ridge extending from anterior to posterior margins ( Fig. 14 ). Total length 7.3 mm (n=1); width 4.4 mm.

Dorsum. Prothorax without diagonal carinae on central raised area, central area slightly raised, micropunctate, lateral areas micropunctate. Mesothorax without carinae, micropunctate. Metathorax with transverse carina in middle of each side; abdominal tergites 1–6 slightly narrowed in middle, with transverse carina in middle of each side just off central elevation; spiracles appear as darker brownish spot without darker margin, orifice as in Fig. 31; abdominal tergites 7–10 with two carinae along margin on each side, surface micropunctate.

Venter. Surface of expansions rugose-punctate. Head ( Fig. 32) surface punctate; clypeus slightly rugose, with fringe of apical setae; mandibles tridentate; maxillary palps with 2 palpomeres and short, robust apical setae; maxilla robust, clavate, with fringe of long apical setae; labium densely setose. Antenna with antennomere 1 short, robust; 2 elongate, cylindrical, longer than 3; 3 cylindrical, with fringe of short apical setae. Pro- and mesothorax wider than long, slightly depressed in middle, surface rugose-striate. Metathorax longer than others, depressed in middle, with suture along apical margin; abdominal sternites 1–8 wider than long, decreasing in width, laterally with curved sulcus dividing the sternite into thirds; sterna 9–10 fused, rounded at apex. Leg: femur short, robust; tibiotarsus subconical, with strong claw and eight apical setae ( Fig. 33).

Figures

FIGURES 1 – 16. Eggs, larva, pupae and adults of four species of “ rolled-leaf ” beetles. 1 – 4. Cephaloleia belti. 5 – 8. C. dilaticollis. 9 – 12. C. dorsalis. 13 – 16. C. placida. Scale bars in all panels equal 2 mm.