UPON SCALE- INSECTS. 45 



in the Paris Exhibition of 1900. He names it A.coccidicola. 

 The mycelium formed around the body of the insect is of a 

 deep yellow colour. 



The fungus is easily cultivated upon various artificial 

 media. The mucilaginous heads usually contain 10-12 

 conidia, occasionally as many as 16. The conidium is 

 cylindrical 4-5 x 1/*. 



This fungus is evidently distinct from the Java and 

 Ceylon Cephalosporium just, described, though perhaps- 

 somewhat allied. The species of scale-insect, upon which it 

 was found, is not mentioned in the account. 



Genus Sporotrickum, Link. 



Guegnen* in his account of the species of this genus 

 found growing on insects, mentions one, S. Lecanii, dis- 

 covered by Peck in North America on a Lecanium. This is 

 the only instance of this habit for the genus I have been 

 able to find. No Ceylon specimen on a coccid has yet been 

 found. 



Another species, S. globuliferum, Speg., is a well-known 

 parasite of the Cinch-bug (Blyssus leucopteris). Inoculat- 

 ing experiments with it have been conducted in the United 

 States of America.f 



The genus Sporotrichum is closely related to Botrytis. 



Genus VertioUlium, Nees. 

 An example of this genus on a coecid was found for the 

 first time some years ago in North Italy, and named 

 V. heterocladium, by Penzig.J It was growing on 

 Lecanium hesperidum on orange leaves, covering the scales 

 with a white mould. This fungus according to Guegnen's 

 account§ appears to be widely spread ; it has been obtained 

 both in Africa and the Antilles. 



* Guegnen, loe. cit.. p. 251. 



•j- Forbes. Illinois Agric. Exp. Station, No. 38, 1895 ; Garmau, Amer. 

 Monthly Micro. Journ. XXIII. 



| Saccardo, S. F., vol. IV., 1886, p. 151. 

 § Guegnen. loc. cit., p. 252. 



