Nash, D. R. 1981. Helops caeruleus L (Col, Tenebrionidae) in numbers under bark. Entomologist's Record and Journal of Variation 93:238-238.
Nash, D. R. 1981. Helops caeruleus L (Col, Tenebrionidae) in numbers under bark. Entomologist's Record and Journal of Variation 93:238-238.