38 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 56 



PLATE I 



Fig. I. Stereoscopic view of the dorsal portion of the thorax from without. 

 (Magnified 10 diameters. Photographed with Zeiss binocular; Objective 55, 

 Ocular 3.) 



p t B 



P t4 



an. Processus analis of pterale A. 



/, Fossa prsealaris. 



fi, Fossa postalaris. 



p, Praescutum. 



pti, Processus pteralis alse i. 



pt2, Processus pteralis alas 2. 



pt4, Processus pteralis alas 4. 



ptB, Pterale B. 

 s, Scutum. 

 se, Scutellum. 

 sp, Spina scutalis. 

 t, Tegula. 

 Vi, Stay. 



Fig. 2. Stereoscopic view of the ventral side of the thorax from within. 

 (Magnified 10 diameters. Photographed with Zeiss binocular; Objective 55, 

 Ocular 3.) 



St 



a, Mesapodema. 

 ap, Mesapophysis. 

 es, Mesosternum. 



t 



pp, Parapleurum. 

 St, Stigma anterius. 



