EXPLANATION OF PLATE 19. 

 Humerobates humeralis arborea, adult. 



Fig. a. Ventral aspect, legs and mouth parts omitted. 



Fig. b. Lateral aspect, legs and mouth parts omitted. 



Fig. c. Notogaster, seen somewhat from behind and the left side, with 

 pteromorphae considerably appressed. 



Fig. d, Cephaloprothoracic aspect seen somewhat from above, showing 

 leg I housed between tectopedia I and II. 



Fig. e. Cephaloprothorax, legs omitted, seen directly from above. 



Fig. /. Cephaloprothorax, legs omitted, seen somewhat from left side, 

 i. e., looking down on to rim of left tectopedia I. 



Fig. g. Pseudostigmatic organ (not. H. h. arborea), edge of lamella lower- 

 most. 



Fig. h. Pseudostigmatic organ, lamella to right. 



Fig. i. Legs I, median (inner) aspect. 



Fig. j. Legs IV, median aspect. 



Fig. k. Transverse section of coxa through flange (free hand). 



Fig. I. Pseudostigmatic organ, looking down on the end of the upturned 

 tip. 



Fig. m. Pseudostigmatic organ, extremely short-headed one. 



Fig. n. Pseudostigmatic organ, extremely long-headed one. 



