32 tJ'ilv, 



Tbey were still living in galleries of web, just above the roots o: 

 the food-plants, PJantago lanccolnta and P. major, but, by Septembei 

 2 1st, had nearly all spun up. The cocoons were fixed in corners, &c., 

 of their cage ; they were one-third to half-an-inch long, very toughly 

 and compactly formed of closely-woven snow-white silk. The pupa 

 is about one-third of an inch long, plump and glossy ; the thorax, 

 head, and wing-cases dark sienna-brown, abdominal divisions dark 

 orange. 



The imagos appeared during the second week of May last. 



lluddersfield : June 8f/i, 188-1. 



LIST OF THE DIPTERA OF THE ISLAND OF MADEIRA, SO FAR AJ 

 THEY ARE MENTIONED IN ENTOMOLOGICAL LITERATURE. 



BY C. K. OSTEN-SACKEX. 



The only strictly faunistic paper on Madeiran Diptera is the 

 Dipterological portion of Wollaston's " Brief diagnostic characters of 

 undescribed Madeiran insects" (Annals and Mag. of Nat. Hist., 1858,> 

 pp. 113 — 117 ; with a plate by AYestwood). It contains descriptionai 

 of 21 species believed to be new. 



All other notices or descriptions of Madeiran Diptera have to be^ 

 sought in the numerous works on descriptive entomology, among in- 

 sects from other countries. I have compiled a list of all the species; 

 hitherto recorded as occurring in that island ; owing to the difBculty) 

 of that kind of search, there may be some omissions, but they cannot 

 be very numerous. 



The list contains 53 species : 20 of these (indicated by *) are« 

 European species, for the most part very common ; 2 species are com- 

 mon to Madeira and to the Canary Islands ; 1 occurs all over Africa; 

 29 have been described from Madeira only, but among these 29 there) 

 are the 21 species described by Mr. WoUaston, which require a closen 

 comparison with the European species, as many of them will probably)' 

 be found identical. The same may be said of the species described 

 by Mr. Thomson and Mr. Walker. 



It appears, therefore, that the data in our possession are too( 

 meagre yet to allow of any conclusion about the affinities or the origiui 

 of the Dipterous Fauna of Madeira.* 



* Ihis List is published not by request of, but by permission of, the author. It was kindljlj 

 compiled at my request for the use of a correspondent resident in Madeira, who is anxious to in-n' 

 elude a List of all recorded Madeiran Insects in the new edition of a book on the island generally v 

 After so much care had been taken in bibliographical research, it seemed to me desiiable that th« < 

 results should also appear in some purely entomological publication.— R. McLaculan. 



