MTOPINiE. 367 



{Ridley), and another speeiineii without d;ita. The species was 

 originally described from Ceylon. Tiipes in Jiigot's collection, 



la one $ from Qiietta, vi. 1U02 {Nurse), which may be referred 

 to this species, the dark brown wing-band is continued to the tij) 

 of the 3rd vein, the costal cell is distinctly clearer, the 3rd 

 antennal joint is blackish, the thoracic dorsum is wholly blackish 

 (both these parts are possibly discoloured), and the i)arts which 

 are gold-dusted in the normal form are in this specimen dusted 

 with greyish. Length identical with that of normal form. 



If this species is really distinct from calopm, Big., a point about 

 which I am undecided, the only differences appear to be as follows. 

 In t'nella both branches of the otli vein are more or less narrowly 

 infuscated, as is also the space between them (i. e., the base of 3rd 

 posterior cell) ; the dark costal band extends distinctly beyond the 

 tip of the 2nd vein (though a few specimens referred h\ me to 

 calopus also exliiliit this condition); the band itself is rather dark 

 brown than black, and it fills approximately half the 1st posterior 

 cell and reaches the hind margin of that cell; whereas in calopus 

 the band is more black than brown and usually ends exactly at or 

 barely beyond the tip of the 2nd vein, often entering only very 

 slightly into the 1st posterior cell and even then not attaining 

 the hind margin of that cell. The abdomen, particularly the 6th 

 segment, is more orange or brownish in tenella, especially in the S . 

 In calopus the abdomen is principally black. 



Subfamily MYOPINtE. 



The principal characters are the presence of the ocelli, the 

 absence of the subcostal cross-vein except in St ijlog aster, Zodion 

 and Pleurocerinelld, and the ending (in normal cases) of the 3rd 

 antennal joint in a two-jointed, dorsal, sometimes style-like arista 

 (in Pleuroceriadla, a true two-jointed style). This subfaniilv has 

 been transferred to the Muscid.e by some authors, but 1 consider 

 that its position is undoubtedly in Coxopid^. \n the arrange- 

 ment of the genera I have placed Pleurocerinella, Stylogaster and 

 Zoilion first, next to the CoxoPixiE, as they all possess the 

 subcostal cross-Vein. For remarks on life-history, see p. 342. 



Table of Genera. 



1. Aiml cell extromoly short and small, sub- 

 equal to liiid basal cell ; a complete 

 thoracic diastotaxic system of stroner, 

 conspicuous, long bristles ; tibiiE with [p. .'{(;{). 



short spins Stvlogastkr, .Mucq., 



Anal cell very long-, generally approaching 

 win;,'-border ; no chietolaxic system; 

 tibi83 uuspurred 2, 



