Vol. 107, No. I, January & February, 1996 49 FIRST TEXAS RECORDS OF FIVE GENERA OF AQUATIC BEETLES (COLEOPTERA: NOTERIDAE, DYTISCIDAE, HYDROPHILIDAE) WITH HABITAT NOTES 1 Sharon Knight Jasper 2 , Roy C. Vogtsberger* ABSTRACT: Five genera of aquatic beetles are reported from Texas for the first time. Species recorded include Suphis inflatus (Noteridae), Hoperius planatus (Dytiscidae), Dibolocelus ovatus, Hydrobiomorpha casta, and Sperchopsis tessellata (Hydrophilidae). Habitat notes are reported for four of these. In addition, some locality and habitat data are provided for Helobata larvalis (Hydrophilidae) which has only recently been recorded from Texas as Helobata striata. Label data are listed for 168 specimens representing the six genera in Texas. This paper is a fortuitous result of surveys made from 1991 to 1995 on the Haliplidae of Texas by the senior author, and on potential predators of Culici-dae larvae in the upper Gulf Coast region of Texas by the junior author. Five genera of aquatic Coleoptera previously unreported from Texas were encoun-tered in our samples. Additional information was obtained from material in the Insect Collection of the Department of Entomology at Texas A&M University (TAMU). Recorded localities and ranges for each species and available habi-tat notes are presented. Each of these genera is either monotypic or is repre-sented in the United States by a single species. Unless otherwise indicated, the collection data represent single specimens and the identifications were made or confirmed by the authors. Specimens collected by the authors are indicated by their initials in the locality data. The sexes of the beetles are given when known. Habitats from which more than one of these species were collected are described under the first species listed, and referred to briefly in subsequent species discussions. Many of the collections were made at the Runnell's Fam-ily Mad Island Preserve, southwest of Houston, and the Roy E. Larsen Sandy-land Sanctuary, north of Beaumont (both of which are properties of The Nature Conservancy of Texas), the Anahuac National Wildlife Refuge, just east of Houston, and the J.D. Murphree Wildlife Management Area, south of Port Arthur. Representative specimens from this study are deposited in the Insect Collection of the Department of Entomology at Texas A&M University. 1 Received July 24, 1995. Accepted September 9, 1995. 2 Department of Biology, Texas A&M University, College Station, TX 77843-3258. 3 Department of Entomology, Texas A&M University, College Station, TX 77843-2475. ENT. NEWS 107(1): 49-60, January & February, 1996