Narraga fimetaria (Grote and Robinson) is the most common insect consuming the foliage of annual broomweed in central Texas. Broomweed and snakeweed are its only hosts. The authors reared larvae in the laboratory and collected them in the field on two annuals, Amphiachyris dracunculoides (DC.) Nutt. (common broomweed) and Gutierrezia texana (DC.) T.&G. (Texas broomweed), and two perennials, G. sarothrae (Pursh) Britt. and Rusby (broom snakeweed) and G. microcephala (DC.) Gray (threadleaf snakeweed). Adults from overwintering pupae emerged during April and May, and larvae were present on broomweed plants throughout the season until November. The highest population peaks in the field were only 0.37 and 0.61 larvae per plant in August and September, which caused no noticeable damage to the plants. Nutrition; Diet; Reproduction; Reproductive productivity; Fecundity; Life cycle and development; Development; Metamorphosis; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Population dynamics; Land and freshwater zones; Nearctic region; North America; USA Websteriana costalis (Tachinidae ); Tetrasphaeropyx (Braconidae ); Euplectrus comstockii (Eulophidae ); Lepidopteran hosts; Narraga fimetaria; New host record; Texas; Temple region; New lepidopteran host records Narraga fimetaria (Geometridae); Food plants; Broomweeds & snakeweeds; Limited host range; Number of generations; Diapause; Overwintering larvae, dates; Emergence from pupa; Spring; Dipteran parasites; Websteriana costalis; New host record; Hymenopteran parasites; Euplectrus comstockii & Tetrasphaeropyx; New host records; Mortality; Overwintering pupae & larval parasitism; Population density; Seasonal abundance; Larvae, influencing factors; Texas; Temple region; Plant host range, life cycle & ecology