262 THE SCOTTISH NATURALIST 



Plusia gamma, L. A specimen taken in September 1909 is 

 my only Bass record; but doubtless the species is of frequent 

 occurrence. 



Mela?iippe fluctuata, L. Several in August 1909, July 19 13, 

 and August 19 14. 



Crambus tristellus, F. Several in August 1914 and 1918. 



Crambus per lellus, Scop., var. One, beginning of August 1918. 



Gelechia (Lita) obsoletella, Fisch. On 19th June 1901 I found 

 a small moth in plenty among Atriplex on the west side of the Bass 

 above the ruins. Specimens were submitted to the late C. G. 

 Barrett who named them as above (recorded in Ann. Scot. Nat. Hist., 



1905. P- !59)- 



(Ecophora pseudospretelia, Sta. This and a Tinea (T.pellionella ?) 



have been received from the lighthouse. 



Coleophora solitariella, Zell. In June 1899 and again in 1901, 

 pupa cases common on stones, etc., among Silene maritima. The 

 moths emerged in July and were identified for me by Mr Barrett 

 (see Ann. Scot. Nat. Hist., 1905, p. 160). 



Two Noctuid pupae given to me in August this year were 

 unfortunately dead. 



Diptera. 



Tanypus, sp. ? Among a number of Flies received from Mr 

 Muir in August last, there is a small female Chironomid belonging 

 to this genus, but owing to its imperfect condition the species is 

 uncertain. 



Tipula oleracea, L. At the lighthouse lantern, August 1909 

 and other dates. 



Melanophora atra, Mcq. An example of this Tachinid was 

 taken in July last. 



Musca domestica, L. Common in the lighthouse during the 

 summer months. 



Calliphora erythrocephala, Mg. Common about the lighthouse 

 buildings in August 19 13 and other dates. 



Anthomyia pluvialis, L. Common. A score of specimens 

 were sent me last summer. 



Fannia canicularis, L. A few taken along with M. domestica. 



Fannia aerea, Ztt. ? Specimens of a Fannia taken this year 

 may be this species, but they are not in good enough condition 

 for reliable determination. 



Scatophaga litorea, Fin. About a dozen specimens. 



Piophila casei, L. One specimen, July 19 18. 



Agromyza, sp. ? One ; species indeterminable owing to im- 

 perfect condition. 



