Template:Otto, 2017b
- Otto, R.L. 2017b. Eucnemid larvae of the Nearctic Region. Part VII: Description of the larvae of Nematodes penetrans (LeConte, 1852) (Coleoptera: Eucnemidae: Macraulacinae: Nematodini), with notes on its hypermetamorphic life cycle. Insecta Mundi 0545: 1–9. Full article (PDF).