Search

The leaffooted bug, Leptoglossus clypealis Heidemann, is a seed-feeding economic pest of crops including almonds and pistachios. The historical distribution of L. clypealis has been considered to be West of the Mississippi in the United States. L. clypealis was recently found in sorghum in the Coastal Bend of Texas, representing a new host record and new collection locality. This study investigated the genetic diversity of L. clypealis museum voucher samples from the Western United States (i.e. Texas, California, and Idaho) collected from 1994 to 2019, including the L. clypealis samples from the Coastal Bend. Eleven new sequences were obtained. Sample sequences were compared with public sequences of L. clypealis from the Western United States. The mitochondrial DNA cytochrome oxidase 1 (mtDNA COI) barcode gene region revealed differences among and within the collection regions. Texas, Idaho, and California all had samples with unique genotypes, and the combined dataset had a haplotype diversity of 1.0. The Texas specimens recently collected in the Coastal Bend did not match genotypes from California or Idaho, and it is unlikely they were recently introduced. Overall, L. clypealis from Texas, Idaho, and California have a high level of genetic diversity, and the 3 regions appear to be within the native range of the species. [ABSTRACT FROM AUTHOR]

The article presents a visual guide to identify Euschistus species, commonly known as stink bugs, in Central Texas. The article notes the difficulty of identifying brown stink bugs, which are often grouped into one category. A study identified six species that were captured near areas planted with maize, cotton, and soybeans. The coloration and size of the species are described. The article mentions the guide can help determine what insecticides to use on the insects.

Presents historical information on nineteenth century Texas, highlighting the discovery of the Tejano community. Reference to William Ransom's publication of `The Texas Republic: A Social and Economic History'; Information on Hispanic settlements in Texas.

Examines the microform `The Bexar Archives. 1717-1803.'