348 TRANSACTION'S OF THE 



Hampstead and Southwark, principally in grocers' and bakers' 

 shops, and in some cases have compelled the occupiers to quit. 

 The only mode of destroying them, suggested, is to lay pieces 

 of meat on the hearth of the kitchen, and when it is covered 

 with them, immersing it in boiling water. 



14. Descriptions of new Exotic Aculeate Hymenoptera. By 

 W. E. Shuckard, V.P.E.S., Librarian to the Royal Society. 



Psamatha of Shuckard, a genus of the family Mutillidce, 

 has the habit of a male Mellimts: it differs from others of 

 the family in the peculiarity of its second submarginal cell re- 

 ceiving both the recurrent nervures also in its clypeus, which 

 approaches that of Cerceris. It may possibly prove the male 

 of Z)/amw2a, Westwood, on the same ground that T/u/nnns has 

 been found to be the male o{ Myrmecodes. 1. Psamatha chahf- 

 bea is G lines in length, and 11 5 in the expansion of its wings: 

 chalybeous, shining, and covered with a grey pubescence ; the 

 hinder margin of the prothorax is white ; on each side of the 

 abdomen are four white spots ; the feet are rufous, and the tarsi 

 piceous. It inhabits New South Wales. 2. Ceropales picta 

 is og lines in length, and 6 in the expansion of its wings : it is 

 black, with the mouth, antennae, scutellum, pro- and mesotho- 

 rax and legs red ; the abdomen has five white bands : it inhabits 

 the Cape of Good Hope. 3. Ceropales anomalipes is b\ lines 

 in length, and 11| in the expansion of its wings; it is black, 

 covered with a golden pubescence ; the abdomen and legs 

 rufo-testaceous ; the four anterior femora and tibiae are short, 

 stout, and somewhat compressed; the hind legs are slender: 

 it is supposed to inhabit Brazil. 4. Exeirus of Shuckard seems 

 osculant between the Pompilidw and Spkegidw; it is chiefly 

 remarkable for its long and robust legs. The wings have one 

 elongate marginal, and four submarginal cells ; the fourth apical, 

 the second petiolated, receiving the first recurrent nervure near 

 its centre, and the second towards its extremity ; the third cell 

 is very much curved. Exeirus lateritius is 12 lines in length, 

 and 22 in the expansion of its wings : it is black and pubescent ; 

 the head, antennae, tibiee, tarsi, and abdomen, with the excep- 

 tion of the base, are deep fulvous : it inhabits New South 

 Wales. 5. Astata Australasia' of Shuckard is Al lines in 

 length : it is black and shining, with a red abdomen : it inhabits 



