23,4 Patton: The Genus Musca Linnasus 313 



and 1 from Manila (McGregor) . I have always been doubtful 

 as to the accuracy of the determination of this species with the 

 M. nebulo of Fabricius, and hoped to have settled my doubt one 

 way or the other by an examination of the type at Kiel. The 

 type of M. nebulo has, however, shared the fate of the rest of 

 the collection of Fabricius, and is now only represented by a 

 pin and a label. It is quite impossible to be certain as to what 

 Oriental species Fabricius had before him when he wrote his 

 very inadequate description and, when on my way to Copen- 

 hagen from Kiel, I had decided finally to delete this name from 

 the literature and to rename the species M. determinate Walker. 

 When I came to examine the Fabrician collection at Copenhagen, 

 I found two specimens, one a male and the other a female, bear- 

 ing the label nebulo, in the handwriting of Fabricius ; the former 

 is the common Oriental house fly, but the latter is M. humilis 

 Wiedemann. I therefore propose retaining the name nebulo 

 finally for the common Oriental house fly. I have no knowledge 

 of the whereabouts of the type of M. multispina Awati. 



Musca nebulo may be confused with M. vicina. The frons of 

 the male is about as wide as that of M. vicina; but, whereas the 

 orbital margins of the latter are parallel almost to the vertex, 

 those of the former curve in just above the middle so that the 

 frons is distinctly waisted just below the vertex. The abdomen 

 of M. nebulo is lighter, especially the apparent third segment; 

 in M. vicina the abdomen is dark orange, and the third segment 

 has a dark brown admedian stripe ; the apparent fourth segment 

 is also much darker. The female of nebulo is also much lighter 

 in color than the female of vicina, and has well-marked silvery 

 stripes and spots on its abdomen. 

 Musca sorbens Wiedemann. 



Musca humilis Wiedemann. 



Musca spectanda Wiedemann. 



Musca latifrons Wiedemann. 



Musca mediana Wiedemann. 



Musca sordissima Walker. 



Musca primitiva Walker. 



Musca angustifrons Thomson. 



Musca bivittata Thomson. 



Musca scapularis Rondani. 



Musca euteniata Bigot. 



Musca conducens Patton (nee Walker). 



Musca praecox Patton (nee Walker). 



The collection contains 5 males of this species, 4 from Baguio, 

 Mount Maquiling, and Los Baiios (Baker) and 1 from Batbatan 



