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Douglas Fir Glowworm Pterotus obscuripennis Male. Attracted to black light at Caspers Wilderness Park, San Juan Capistrano, Orange County, CA. 5-04-13. © Rich Schilk Females are larviform and bioluminescent; males are neither. Coleoptera: Lampyridae Back to Arthropods of Orange County, California Back to Natural History of Orange County, California |