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Show 370 MR. G. R. CROTCH ON AZOREAN COLEOPTERA. [Mar. 28, some water insects at least must have accompanied them. The specimens before me are darker than English ones, a circumstance probably to be accounted for by the method of preservation adopted. 30. AGABUS GODMANNI, n. sp. This fine species is by no means rare in Terceira, Fayal, and Flores; and it is with some doubt that I have ventured to regard it as new; but it agrees with no published description that I have access to. 31. GYRINUS DEJEANI, Brulle. Common in Flores and Santa Maria, as also in Teneriffe, though not in Madeira. M. Drouet in his brief list records no Water-beetles. 32. PARNUS PROLIFERICORNIS, Rossi. S. Miguel and Santa Maria; also in Graciosa and Flores (Drouet). 33. PHILHYDRUS LIVIDUS, Forst. Not rare in Terceira, but new to the Atlantic fauna, representing the Ph. melanocephalus of the other groups. 34. SPHAERIDIUM BIPUSTULATUM, Fabr. Common in S. Miguel, Santa Maria, Terceira, and Flores, and is probably, as all the dung species may be presumed to be, universal. 35. DACTYLOSTERNUM ABDOMINALE, Fabr. Two specimens, under dung in Fayal. It is somewhat curious that this species should be so rare here, occurring as it does in the Mediterranean, Madeira, and the Canaries. 36. CERCYON OBSOLETUM, Gyll. At Ponte Delgada, S. Miguel, and also in the higher parts of the island, but not common. 37. C. LITTORALE, Gyll. _ F'ayal and S. Miguel; one specimen only from each. This species appears to decrease in abundance southwards. 38. C. INQUINITUM, Woll. One specimen, at Ponte Delgada, S. Miguel. A Madeiran insect, but probably of wider range in reality. 39. C. CENTROMACULATUM, Sturm. Flores and S. Maria, not common. The name "nigriceps, Marsh.," has been adopted by some for this species. The description is inapplicable ; and he has in his collection placed specimens to represent four different species ; hence he could not have had a very clear idea of its characters. |