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A New Genus And Species Of Aquatic Beetle, Caenelmis Octomeria, From Kenya, Africa (Coleoptera: Elmidae: Elminae), Paul J. Spangler
A New Genus And Species Of Aquatic Beetle, Caenelmis Octomeria, From Kenya, Africa (Coleoptera: Elmidae: Elminae), Paul J. Spangler
Insecta Mundi
The new genus and species, Caenelmis octomeria, belonging to the Elmidae and subfamily Elminae, are described. Character states used for recognition of the new genus are illustrated by line drawings and scanning electron micrographs. The 8-segmented antenna of the new genus will readily distinguish it from the other 25 elmid genera knownfrom Africa.
Sequential Sampling Plans For The Red Sunflower Seed Weevil (Coleoptera: Curculionidae) In Oilseed Sunflower, Chengwang Peng, Gary J. Brewer
Sequential Sampling Plans For The Red Sunflower Seed Weevil (Coleoptera: Curculionidae) In Oilseed Sunflower, Chengwang Peng, Gary J. Brewer
Department of Entomology: Faculty Publications
Decision making on control of the red sunflower seed weevil, Smicronyx fulvus LeConte, requires a reliable and efficient method for classifying the pest population. The objective of this study was to develop sequential sampling plans for red sunflower seed weevil control in oilseed sunflower. Sequential classification sampling plans were developed from Wald's sequential probability ratio test (SPRT) by using a negative binomial distribution. Operating characteristic and average sample number functions were computed for a range of k values. Two sampling plans were developed for the economic thresholds of six and eight weevils per sunflower head, based on a k value …