PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 84 Washington: 1937 No, 3012 



THE PUPA OF MYOCERA TABANIVORA HALL 

 (DIPTERA) 



By Charles T. Greene 



Bureau of Entomology and Plant Quarantine, United States Department of 



Agriculture 



The adult of Myocera tabanivora^ a new species of muscoid fly. 

 was described by David G. Hall in tlie preceding paper.^ Following 

 is a description of the pupa : 



Pujya. — Dull dark yellowish red, slightly darker at each end. 

 Posterior end oblique in profile. Anterior spiracle large, piceous, 

 shining, nearly quadrate, slightly smaller at base; outer surface 

 with a depression in central basal portion ; entire raised portion with 

 tiny yellow tubercles; inner surface very finely rugose; spiracles 

 located apically, separated by a distance equal to twice the length 

 of one spiracle. Posterior spiracles located on but mostly above 

 the horizontal axis, very large, shining black, narrowly separated 

 by a vertical depression; each spiracle appearing to be in a pitlike 

 depression, which is very deeply grooved on tlie inner lower half; 

 each spiracle with three prominent elliptical lobes, each lobe having 

 a sinuous, reddish-yellow slit extending the entire length; button 

 very weak, represented only by a slight wrinkling in the deep groove 

 where the three lobes meet. Anal plate blackish. (Fig. 27.) 



1 New muscoid flies (Diptera) in the United States National Museum, Proc. U. S. Nat. 

 Mus., vol. S4, p. 206, 1937. 



120030—37 217 



