PLATE L. 



Deltocephalus ARGUS. (Page 57.) 



Fig. 1. — Imago. In this specimen the spots are 

 somewhat annular in shape. 



Fig. la. — Head and pronotmii of the same, in 

 which the eyes are only partly filled with pigment. 



Fig. Ih. — The terminal abdominal segment of the 

 male, showing the perforated caudal process, protruding 

 from a short cylindrical tube with plates. This tube 

 emerges from below the notch of the pygofer. 



Deltocephalus Falleni. (Page 57.) 



Fig. 2. — The macropterous imago. 

 Fig. 2 a. — The brachelytrous imago. 



Deltocephalus sabulicola. (Page 58.) 



Fig. 3. — The female with expanded wings. 

 Fig. 3 a. — The male with closed wings. 



Deltocephalus punctum. (Page 59.) 



Fig. 4. — Imago showing the elytral spots. 

 Fig. 4 a. — Frons and face of the same. 



Deltocephalus pascuellus. (Page 54.) 



Fig. 5. — Terminal segment of the female. The 

 parts have been digested in aqueous potash so as to 

 render the details visible and transparent. The cauda 

 is seen above the plates which enclose the saws. 



