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SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 37 



proct, and between their apices part of the membranous pallium 

 (Pal) can be seen. 



The cerci are similar in shape to those of the female, but they are 

 a little longer and have their apices curved inward. The base of the 

 male cercus has a small, dark-colored tubercle, with its apex directed 

 toward the edge of the epiproct. 



^'^"^1 Cer Eppt 



VIIIT IXT XT 



Fig. 19. — End of abdomen of Marellia remipes, male. 



A, lateral view. B, dorsal view. 



Ccr, cercus ; Eppt, epiproct ; /, furcula ; Pal, pallium ; Ppt, paraproct ; VIIS, 

 VIIIS, seventh and eighth abdominal sterna ; IXS, ninth abdominal sternum, 

 or subgenital plate of the male ; VIIT, VIIIT, IXT, and XT, seventh, eighth, 

 ninth, and tenth abdominal terga. 



The phallic complex. — The general structure of the phallic organ 

 in Marellia remipes and its relations to the terminal part of the male 

 abdomen are shown in figure 20 A. The retracted phallus is bulblike 

 and shows rather extended external sclerotizations. As can be seen 

 in the figure, the whole of the phallic organ is enclosed within the 

 greatly enlarged subgenital plate and covered by the hood of the pal- 

 lium (Pal), the epiproct (Eppt), and the paraprocts {Ppt). 



