266 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



EXPLANATION OF PLATE 33 



Female genitalia of the genus Bulla Walker 

 (All figures camera lucida and same magnification, all ventral views.) 



Figure 1. Bulla confinnans (Walker). Mated specimen. 



Figure 2. Bulla mexlcana (Behr). Mated specimen. 



Figure 3. Bulla schausl, new species. Mated specimen. Lateral view of opening of 

 ductus seminalis drawn alongside. Paratype. 



Figure 4. Bulla slmllarls Richards. Mated specimen. 



Figure 5. Bulla morelosa, new species. Mated specimen. Holotype. 



Figure 6. Bulla deducta (Morrison). Virgin; dotted line indicates silhouette of 

 bursa copulatrix of a mated specimen superimposed on drawing of 

 virgin. 



