DESCRIPTION OF PLATE E. 



(Called PLATE LXXV, on page 157.) 



The reference-letters on these figares, as a rule, 

 correspond to similar parts of the other figures, except 

 in figs. 9 and 11, which have the lettering originally 

 assigned to them by Dr. Sharp in his illustrations. 



Fig. 1. — The pygofer of Typhlocijha Douglasi, showing 

 the barbed styles of the male and its adjuncts. These 

 parts have been dissected, after treatment with aqueous 

 potash. /, j:). Lateral plate, p. Penis. ? s. Style. 



Fig. 2. — The styles isolated and more magnified, 

 with a central horny process. Below, at 4 a, there 

 appears a dilated tube, ending with a clubbed setae, 

 which may porhaps ba considered as tlie penis. 



Fig. 3. — A profile view of the female pygofer, show- 

 ing, at c, the Cauda, which may be capable of protrusion. 

 /, p. Lateral plates, below which the saws are seen. 



Fig. 4. — Termination of the cauda, which is tufted, 

 and apparently perforated. 



Fig. 5. — Terminal abdominal joints of the female of 

 Zijgina hlandula. Profile view. 



Fig. 6. — The same parts seen from below, with its 

 valves, V. 



Fig. 7. — 'Diagramatic sketch, showing certaiu details 

 of structure in the pygofer, which might appear either 

 singly or collectively in species of Tettigidse. The 

 drawing has been made to assist in the nomenclature 

 of parts, and to help in finding homologies, c. Cauda, 

 as in T. rosa. cl. Diaphragm. /. Filaments of penis, 

 as in Liburnia guttida. h. Horny plates, as in Lihurma 

 straminea. I. Lobes, as in Dicraiieura. p. Penis, as in 

 Idiocerus fidgidus. s. Styles, as in Typhlocgha rosce. 



