146 



Paussoceros (p. 13); antennalis, Mjob. (p. 13, fig. 4).. 

 Derby. A very distinct species, but the generic distinction 

 (as also that of Leaptinus) from Paussoptinus is purely an 

 arithmetical one. I have seen nothing close to it, but am 

 here describing a much smaller species, taken in numbers 

 from an ant's nest. 



Ectrephes clavatus, Mjob. (p. 14, fig. 5). Swan River. 

 Structurally close to pascoei, but evidently different by the 

 much larger prothoracic fovea, and the more conspicuously- 

 clothed elytra. Specimens (6) of pascoei before me (including 

 two of the original specimens taken by the late Mr. F. du 

 Boulay) vary considerably in size, and in the intensity of 

 prothoracic striae, but they all differ from the figure of 

 clavatus in the particulars noted, 



Decemplocotes brevipennis, Pic (Paussoptinus) (p. 6, 

 fig. 6). Professor Michaelsen sent to Dr. Mjoberg a figure 

 taken from the type of this species, and the figure makes it 

 certain that the species should never have been referred to 

 Paussoptinus, but that it is a Diplocotes (or a Decemplocotes, 

 if the latter genus is to be allowed to stand). It is also the 

 species I named Diplocotes decemarticulatus ; Pic's name has 

 priority. 



The following is a list (with synonymy) of the Australian 

 Ptinidae (excluding the Anobiides) hitherto recorded from. 

 Australia : — 



DlPHOBIA FAMILIARIS, Oil. 



Diplocotes niger, v. d. Poll. 

 Diplocotes armicollis, Lea. 



brevipennis, Pic (Paussoptinus, Pic; Decem- 

 plocotes, Mjob.). 

 decemarticidatus, Lea. 



FOVEICOLLTS, Oil. 

 HOWITTANUS, Westw. 



strigicollis, Lea (Decemplocotes, Mjob.). 



ECTREPHES FORMICARUM, PaSC. 



Anapestus kreusleri, King. 

 kingii, Westw. (Mesectrephes, Mjob.). 

 pascoei, Westw. (Monectrephes, Mjob., in 



error). 

 clavatus, Mjob. 

 Enasiba tristis, Oil. 

 Gibbium scotias, Fabr. 

 Hexaplocotes sulcifrons, Lea. 

 Mezium affine, Boield. 

 Niptus hololeucus, Fald. 

 Paussoceros antennalis, Mjob. 



Paussoptinus dolichognathus, Lea (Leaptinus, Mjob.). 

 lattcornis, Lea. 



