100 Rev. F. W. Hope's Descriptions XXI. Descriptions of some new Species of Coleoptera from Adelaide in New Holland. By the Rev. F. W. Hope, F.R.S., President of the Entomological Society, &c. [Read 6th June, 1842.] Having lately received through the post office a small collection of insects forwarded to this country from Adelaide in New Hol-land by one of the members of this Society, Mr. Fortnura, I describe the following species, prefacing the descriptions with the following extracts from Mr. Fortnum's letter, dated from that settlement on 10th August, 1841 : — " From what little observations I have made of the Entomology of this country, it is very singular : the great scarcity of all forms of predaceous land beetles, those few that are found being chiefly under the loose bark of trees ; a large black species is found under dung, logs, &c.-: in fact Coleoptera ^enexaWy are far from abundant: the most conspicuous and numerous insects being the ants, which appear to me in a great measure to replace the predaceous Coleoptera. I send you a species, which will give some idea of their powers ; it stings with as much severity as the common wasp with you. The number of ants is surprising, and the great variety of forms among them is equally so. I have observed at least thirty species. The aquatics appear more numerous. The Hydrous (?) sent is from the salt (sea) water creek of the port ; the others from fresh water holes inland. StaphlUnidce are rare. Oi" Biiprestidce I have only seen those sent. The Onthophagus is the only one 1 have seen ; one individual was taken flying round human fseces : the Hister also. I send you all the LameU'icornes I have as yet observed. The same is to be said of the Longicornes, with the exception of a fine Prionus, which would have taken too much room. The little Cassida was found under the bark of the pine (Callitris). I think also that the numerous species of spiders, found here in every situation, per-form in a great measure the part of the predaceous beetles. I have done as little in Orthoptera as in Coleoptera. There is a species of Forfcula. Of Blatta there are a great number ; of IMantis some interesting small forms, the males winged, j apterous ; of Phasma a fine species, near PlujUium ; but I have seen few species. I have the larva of an Xya from the bed of a creek, and two fine species of Gryllacris. On my first arrival I observed an individual of Mantispa, which unfortunately evaded me ; but I
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