PLATE XV. 



LiBURNIA DENTICAUDA. (Page 51.) 



Fig. 1. — Brachypteroiis female. 

 Fig. 2. — Frons, with its almost obsolete keels. (For 

 style of male, see fig. 15.) 



LiBURNIA EXiGUA. (Page 52.) 



Fig. 3. — Brachelytrous male, showing its short and 

 stout legs, and notched py gofer. 



Fig. 4. — Styles and part of the pygofer of the same 

 insect. 



LiBURNIA PELLuciDA. (Page 48.) 



Fig. 5. — Brachelytrous form, var. difficilis of Edwards. 

 Fig. 6. — Brachelytrous form, var. discreta of Edwards. 

 (See also Plate XIV., fig. 6.) 

 Fig. 7. — Brachelytrous male of the same. 



LiBURNIA sPEciosA. (Page 52.) 



Fig. 8. — Macropterous male, from Mr. Douglas's 

 cabinet. 



LiBURNIA PiEYi. (Page 53.) 



Fig. 9. — Brachelytrous male, with truncated ab- 

 domen. 



Fig. 10. — Brachelytrous female, with pointed ab- 

 domen. 



Fig. 11. — Side view of anal process, styles, and 

 penis of the male dissected out. 



Fig. 12. — Head, pronotum, and frons of the same 

 insect. (See Plate XVIIL, fig. 5.) 



LiBURNIA FORciPATA. (Page 54.) 



Fig. 13. — Brachelytrous male with its notched pygofer. 

 Fig. 14. — One of the male styles, attenuated at the tip. 



