6o 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 56 



PLATE II 



Fig. 29. Stereoscopic view of the anal part of the wing-joint, from above. 

 (Magnified 14 diameters. Photographed with Zeiss binocular; Objective 55, 

 Ocular 3.) 



lam llbm Ibp aq llap llbp 



aq. Transverse anal vein. 

 ie, Vein of the inner margin of the lobulus. 

 lo, Lobulus. 



pt4. Processus pteralis ate 4. 

 ptVI, Processus pteralis thoracis VL 

 sq, Squamula. 

 Sq, Squama. 



lam, First depressed (concave) fold of the middle region, discoidal vein. 

 Ilbm, Crest of second raised (convex) fold of the middle region. 

 Ihp, Crest of first raised (convex) fold of the posterior region. 

 Ilap, Second depressed (concave) fold of the posterior region, anal vein. 

 [Ibp, Crest of second raised (convex) fold of the posterior region, axillary 

 vein. 



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