Many of the Trichopterygidæ are found in profusion, including a good number of rare species. _Ptinella testacea_, _P. denticollis_, _P. aptera_, and _P. angustula_, are all plentiful in various parts of the district, from Smallheath and Knowle to Cannock Chase and Bewdley Forest. _Pteryx suturalis_ is also generally distributed and fairly abundant. Several good species of Trichopteryx occur in hot-beds at Knowle and Edgbaston, and also on the river banks at Bewdley. _Millidium trisulcatum_ sometimes swarms in one spot at Knowle. _Ptenidium Gressneri_, a new British species, may be mentioned as having been captured in 1885 at Sherwood Forest. _Triplax russica_ abounds on Cannock Chase, and _T. ænea_ may be taken sparingly at Needwood. The very rare _Teredus nitidus_, after being lost sight of for nearly 50 years, was again found in Sherwood Forest by the writer in 1884 and 1885. _Myrmetes piceus_, Hopwas Wood, Bewdley; _Gnathoncus rotundatus_, Cannock Chase; var. _punctulatus_, Knowle; _Abræus granulum_, Salford Priors; _Plegaderus dissectus_, Cannock Chase, Salford Priors; _Epuræa augustula_, Sutton Park; _Cryptarcha strigata_ and _C. imperialis_, Knowle; Rhizophagus: nine of the species occur in the neighbourhood of Birmingham, and the tenth, _R. cœruleipennis_ has been taken at Matlock; _Thymalus limbatus_, Cannock Chase; _Psammæchus bipunctatus_, Coleshill, Sutton Park; _Antherophagus nigricornis_, Bewdley; _A. silaceus_, Marston Green, Bewdley; _A. pallens_, Solihull, Bewdley; _Myrmecoxenus, vaporariorum_, Edgbaston, Knowle; _Scaphidium quadrimaculatum_ may be taken at Cannock Chase and Bewdley; _Diphyllus lunatus_, in the same localities and also near Knowle; _Byrrhus fasciatus_ and _B. dorsalis_, at Cannock Chase; _Georyssus pygmæus_, Bewdley. The remarkable beetle, _Macronychus quadrituberculatus_, should be included in this list, its only British habitat being the river Dove, near Burton-on-Trent.