542 Dr. E. Liinnberg on the 



Cratilla, gen. nov. 



Frontal tubercle bifid ; claws dentated before the extremity ; 

 abdomen rather slender, shorter than the wings, rather long 

 and narrow, only one cross-nervure in the lower basal cell ; 

 no su[)ratriangular nervures ; all the triangles traversed by 

 one nervure : fore wings with the last antenodal cross-nervure 

 continuous; triangle rather short and broad, followed by 

 three rows of cells, increasing ; subtriangular space consisting 

 of 3 or 4 cells : hind wings with the triangle followed by a 

 row of 2 (or the first row of 3) cells, increasing ; its base 

 corresponding with the arculus; sectors of the triangle united 

 at the base. 



Cratilla metallica, Rraner. 



OrtJiemis inetaUica, 'Brauer, Sitzungsb. Akad. Wien, Ixvii. p. 199 (1878). 

 Protorthemis vietaVica, Kirb. Truns. Zool. Soc. Lond. xii. p. 290 (1878). 



Hah. Singapore, Mount Opliir, Sarawak, Sumatra, Palawan. 



Differs from Protorthemis by the more slender body and 

 the want of supratriangular nervures; from Zijgonidia by 

 the dentated claws and the single nervure in the lower basal 

 cell of the fore wings ; aud from Nesoxenia (to which, if 1 

 recollect rightly, some recent authors have referred it) by the 

 traversed triangle of the hind wings, with its base corre- 

 sponding to the arculus, the single nervure in the triangle of 

 the fore wings, and the coarse reticulation, &c. 



LXXII. — Note on the Individual Variation of the Common 

 Hedgehog (Erinaceus europgeus, Linn.). By Dr. EiNAR 

 LoNNBERG. 



In the ' Annals ' for April last is a paper by Mr. G. E. H. 

 Barrett-Hamilton, entitled '' Note on the Common Hedge- 

 hog [Erinaceus europceus, Linnaeus) and its Subspecies or 

 Local Variations." The first two " subspecies " (of ten) are 

 named ^''Erinaceus eujopceus occidentalis " and "E. e. typicusy 

 The characteristics by which these forms are said to be distin- 

 guished from each other are, to judge from the diagnoses, rather 

 slight. Concerning " £". e. typicus''^ Mr. Barrett-Hamilton 

 says, under the head " distinguishing characteristics " : — 



