ART. 10. PUPARIA OF 100 MUSCOID FLIES GREENE. 7 



SECTION 1. 

 End of puparium ivith a large rounded tubercle. 



KEY TO THE SPECIES. 



* 



1. Spiracnlar plates each have five slits 2 



Spiracular plates each have three slits 3 



2. Stigmal plate located on a large tubercle, which is below the longitudinal 



axis line (No. 31) Clausicella tarsalis Coquillett. 



Stigmal plates with short slits, each plate on top of a tube-like projection 

 located on a rounded tubercle far above the longitudinal axis. 



(No. 32) Tachinophyto tortricis Coquillett. 



3. Tubercle very large ; diameter nearly equal to the end of the puparium_ '•' 

 Tubercle much smaller b 



4. Stigmal plates reddish in the center ; located below the longitudinal axis 



(No. 33) Sturmia pilatei Coquillett. 

 Stigmal plates nearly round, black ; located above the longitudinal axis. 



(No. 34) Exorista pyste Walker. 



5. Tubercle near bottom surface of the puparium 6 



Tubercle much higher up 7 



G. Tubercle very large; longitudinal axis line near upper edge. 



(No. 35) Tachinophyto variabilis Coquillett. 

 Tubercle small ; bottom surface of puparium nearly straight. 



(No. 36) Tachinophyto floridensis Townsend 

 7. Tubercle directed obliquely upward. 



(No. 37) Phorichaeta cinerosa Coquillett. 

 Tubercle small, very prominent; puparium quite small. 



(No. 38) Actia pilipennis Fallen 



Tubercle not so prominent--^ 8 



S. Puparium very small ; tubercle divided vertically on the apex; each plate 



has three small slits (No. 39)Siphona geniculata de Geer. 



Puparium slightly hirger; stigmal plates nearly rectangular; .slits very 



narrow (No. 40) Siphona plusiae Coquillett. 



Puparium not as above 9 



9. Posterior end of the puparium tapering into the tubercle 10 



Posterior end rounded; tubercle distinct but not tapered 11 



10. Puparium rather .slender; ventral surface slightly concave. 



(No. 41) Panzeria penitalis Coquillett. 



Puparium more robust; apex bifid; button very large, size nearly equal to 



ridges containing the slits (No. 42) Leskiomima tenera Wiedemann. 



11. Posterior end of puparium v/ith a round tubercle above the center of the 



apex; slits parallel (No. 43) Paraplagia spinulosa Bigot. 



Po.storior end flat ; spiracles slightly raised ; three curved slits, not parallel. 



(No. 44) Metachaeta helymus Walker, 



SECTION 2. 



End of puparium ioithout a large rounded tubercle; spiracles distinctly protu- 

 berant or slightly or distinctly raised above the surface. 



KEY TO THH SPECIES. 



1. Spiracles distinctly protuberant 2 



Spiracles slightly or distinctly raised above the surface of the puDarium. T 



