PLATE LI. 



Deltocephalus distinguendus. (Page 60.) 



Fig. 1. — Imago of the male. Details of the pygofer 

 may be seen in Plate LIL, fig. 3. 

 Fig. la. — Imago of the female. 

 Fig. 1 h. — Larval form of the same. 



For other details see Plate LIL, figs. 3, 3 a. 



Deltocephalus cokoniceps. (Page 62.) 

 Fig. 2. — Imago of the same. 



Deltocephalus Nokmani. (Page 63.) 

 Fig. 3. — Imago of the same. 



Deltocephalus socialis. (Page 64.) 



Fig. 4. — Imago of the male, with its short elytra. 



Fig. 4 a. — Female, with the dentate pygofer. 



Fig. 4 h.- — Under side of the male. 



Fig. 4c. — Upper aspect of the pygofer of the female, 

 showing the caudal process between the genital plates. 



Fig. 4 d. — Upper view of the pygofer of the male. 

 The genital plates cover the styles and intromittent 

 organ. 



