Figures 633-640 in Morphology of Baridinae and related groups (Coleoptera, Curculionidae)

Figures 633-640. Elytra, SEMs, ventral aspect. 633, Pertorcus sp., showing apical field of microtrichia; 634-635, Acythopeus sp., showing microtrichia along antero-mesal margin of submarginal fold; 636-637, Stethobaris commixta: 636, general view of elytron; 637, detail of apical microtrichial field; 638-640, Stethobaris laevimargo: 638, general view of elytron; 639-640: detail of ventral view of elytron and microtrichial fields along anterior regions of submarginal fold.