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Show 1867.] MR. G. R. CROTCH ON AZOREAN COLEOPTERA. 369 21. S. (ACUPALPUS) LURIDUS, Dej. On the coast in S. Miguel and Terceira. This is new to the Atlantic fauna ; and it is very curiou3 that the pale form should occur, whereas the dark form of the preceding is present. 22. BRADYCELLUS DISTINCTUS, Dej. One specimen only, from the Lagoa das Furnas, S. Miguel. It is new to the Atlantic fauna. Compared with English examples, the elytra are more ventrieose and have the interstices perceptibly flatter. If further material should show that it is really distinct, I shall propose the name "azoricus" for it. 23. TRECHICHUS FIMICOLA, Woll. One specimen, from Fayal. This does not quite agree with Madeiran types in the British Museum, being distinctly paler, and with more faintly striate elytra. Further material can alone decide whether these characters are permanent or not. 24. TACHYS 4-SIGNATUS, Dufts. (CURVIMANUS, Woll.). Not rare in S. Miguel, Terceira, and Fayal. Those from Terceira are paler and more faintly striate. It is common in South Europe, Madeira, and the Canaries; at least I am unable to distinguish between specimens from Spain and the latter locality. 25. BEMBIDIUM (OCYS) RUFESCENS, Fabr. (DUBIUM, Woll.). S. Miguel, Fayal, and Flores; also in Santa Maria (Drouet). A careful comparison of it with English specimens and with Mr. Wol-laston's type in the British Museum has convinced me that they should be referred to one species. 26. B. (LOPHA) SCHMIDTII, Woll. This insect, which assumes a different form in South Europe, Madeira, and the Canaries, here appears to approximate most closely to the Madeiran race; the coloration, however, is darker, the testaceous patches being less developed. It is not common in S. Miguel and Fayal. 27. B. (LEIA) HESPERUS, n. sp. Two examples only, under marine rejectamenta at Praya in Terceira. It is most nearly allied to B. Icetum, Brulle. 28. HYDROPORUS PLANUS, Fabr. Not rare in ponds in Terceira, Fayal, and Flores. It is darker than the ordinary English form, but I am unable to detect any tangible differences. 29. COLYMBETES (RHANTUS) PULVEROSUS, Sturm. New to the Atlantic fauna, but is probably introduced ; and when one reflects on the introduction of goldfish, it is easy to see that PROC. ZOOL. Soc-1867, No. XXIV. |