1. A re-evaluation of the taxonomy and distribution of some european species of Hydrochus;Angus;Ent. mon. mag.,1977
2. Arnett , R. H. , Jr. 1960
3. Arnett , R. H. , Jr. 1964 Notes on Karumiidae 65 68
4. The remarquable life-history of a new family (Micromalthidae) of beetles;Barber;Proc. Biol. Soc. Washington,1913
5. Observation on the life-history of Micromalthus debilis Lec;Barber;Proc. ent. Soc. Washington,1918