PLATE XIX. 

 DiCEANOTKOPis HAMATA. (Page 66.) 



Fig. 1. — Macropterous male, showing the four white 

 keels on the vertex. 



Fig. 1 a. — Brachelytrons female. 



Fig. 1 h. — Frons and clypens of the male. The 

 central keel furcates about half-way between the suture 

 of the clypeus and the vertex. 



Fig. 1 c. — Dorsal view of the pygofer of the female 

 insect, e. The usual cauda. h. Cornua flanking the 

 opening of the pygofer. 



Stiroma nigrolineata. (Page 71.) 



Fig. 2. — Macropterous female. 



Fig. 2(1. — Brachelytrous female, which is larger 

 in body than the male. 



Fig. 2 h. — Brachelytrous male, seen in profile. 



Fig. 2 c. — Pygofer of the male. r. Supplemental 

 teeth below the anal tube. p. The penis, s. One of 

 the styles. 



Stiroma affinis. (Page 70.) 



Fig. 3. — Brachelytrous female, the body of which 

 is one-third larger than the male. The latter is usually 

 darker on the abdomen. 



