. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. THE SH1X1X(_! FLOWER BEETLES. 497 of elytra, st-arcely punctate. Elytra distinctly but sparsely punctate, the punctures finest toward the base; sutural stria deep, a little curved. Length mm. Southern half of State: frequent. 'May 1-September 20. Scaphiomicnis flavescens Casey, pale brownish-yellow, length .9 mm., was described from ]\Iiehigan. Family XIY. The SrnxixG Flower Beetles. To thi
. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. THE SH1X1X(_! FLOWER BEETLES. 497 of elytra, st-arcely punctate. Elytra distinctly but sparsely punctate, the punctures finest toward the base; sutural stria deep, a little curved. Length mm. Southern half of State: frequent. 'May 1-September 20. Scaphiomicnis flavescens Casey, pale brownish-yellow, length .9 mm., was described from ]\Iiehigan. Family XIY. The SrnxixG Flower Beetles. To this family belong a sjiiall number of oval or roimded-oval, convex, shining beetles, having the body very compact; antennse in- serted under or at the sides of a slight frontal margin. 11-jointed. the last three joints forming an oval club; thorax with the side pieces not distinct; pn sternum prolonged, en- tering the emarginate mesosternum behind, the ooxal cavities open; metasternum large, produced in front; scutellum large, triangular; eh-tra rounded at tip and entirely covering the abdomen, which has five free ventral segments. (Fig. 178. i The front coxa? are rather small and globular: middle coxa? transverse. separated by the sternum; hind coxae contiguous, ^j^g; ^'^ j transverse and flat; tai*si 5-jointed, the fourth joint gg^")'^' 'â â '''*" usually small and obscure. From the Scaphidiida; the members of this family may be InioNvn by their broadly rounded instead of truncate elytra and by the smaller and less prominent front coxa. They are less than 3 mm. in lejigth and live principallj^ on flowers, the laiwa' living in the heads of flowers, especially those of OompositsE. The adults may be taken in summer by beating or in autumn and spring by sifting. Some species, however, occur only beneath bark. The name of the family is based upon that of the oldest genus. Plwlacrus, a word meaning bald-headed and suggested probably by the rounded shin- ing aspect of thes
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
