Some Ectoparasites in the South African Museum. 285 



however. Yet it is impossible, we think, till more of this type 

 have been investigated to say what value is to be assigned to the 

 differences between members of the bicuspis group. They are 

 not, we imagine, varieties in the sense that atrimarginatus, K. and 

 C., is a var. of Nirmus lineolatus. It may be advisable ulti- 

 mately to arrange them in a trinomial series. 



Dimensions of MACROCEPHALUS $ . 



Length. Breadth. 



Head -430 -300 



Prothorax -116 -200 



Metathorax -183 "290 



Abdomen -971 -470 



Total length of ? 1-68 mm. 



The bicuspis type of Nirmus though occasionally found on other 

 Limicolae is probably specially attached to the genus Aegialitis. 



NlRMUS MELANOPHRYS, N. 



N. melanophrys, Nitzsch, in Giebel, Ins. Epiz. p. 146 (1874). 

 2 $ $ , ? . Upupa africanus (South African Hoopoe). Philips- 

 town, C.P. 

 Imm. Upupa africanus. April, 1913. 



NIRMUS NEBULOSUS, Denny (1842). 



Nirmus nebulosus, Denny, Monogr. Anopl. Brit. p. 132, pi. xi. f. 13 



(1842). 



$ , 9 ? ? . Sturnus vulgar is. Sept., 1913. 

 $ , 4 J ? , 4 imm. Sturnus vulgaris. 



This host the common starling of Europe has been introduced 

 into South Africa. 



NIRMUS PILEUS, N. (1818). 



Nirmus pileus, Nitzsch, in Giebel, Ins. Epiz. p. 162 (1874). 

 For note see under N. decipiens, N. 



2 $ $ , 25 imm. Recurvirostra avocetta (Avocet). Dec., 1912. 

 Philipstown, C.P. 



NIRMUS PUNCTATUS, N. (1818). 



N. punctatus, Nitzsch, in Giebel, Ins. Epiz. p. 176, pi. iv. tigs. 1, 2 

 (1874). 



N. PUNCTATUS LINGULATUS, Var. 11OV. 



30 $ $ , 27 ? ? , 6 imm. Lanis hartlaubi. Table Bay, July, 

 1913. 



