PLATE LXII. 



Alebra Wahlbergi. (Page 103.) 



Fig. I. — Imago, drawn in perspective, with its out- 

 spread wings. 



Fig. 1 a. — Abdomen, showing the caudal chamber 

 at V, and the genital plates. 



Fig. 1 h. — Abdominal apex of the same, seen in profile. 



Fig. 1 c. — Part of the clavus, showing red pigment 

 spots. 



DiCRANURA CITRINELLA. (Page 104.) 



Fig. 2. — Imago, with its plain, unspotted elytra and 

 wings. These organs are commonly too delicate to 

 show the usual neuration. 



Fig. 2 a. — The pygofer, with its details, viewed from 

 above. The significance of these parts is not well under- 

 stood. The caudal-cell or caudal-chamber, with the style, 

 is seen at v ; below which, at d, two black spines are 

 developed. The last segment ends with a broad plate, 

 which is deeply notched ; and at the summit of this 

 notch a cordate oval process appears superposed. 



Fig. 2 h. — Wing, which, under a particular illumina- 

 tion, is seen to be finely punctate, and faintly marked 

 with nervures. 



Fig. 3. — Profile view of the abdominal apex of the 

 male of EujUeryx melissce. c. Caudal process, s. Styles, 

 below which, at t, may be seen a theca or spoon- 

 shaped sheath. 



Fig. 4.— Details of ovipositor, as shown by a 

 dissection made by Dr. Capron. o. Portions of the 

 ovipositor. In the figure below, the points of these 

 blades are under greater amplification, represented 

 with their serratures. 



A figure of the complete insect may be seen on 

 Plate LXVIII. 



Fig. 5. — Details of the last abdominal ring of the 

 male of E. cmritus. v. Caudal cellule, s. Styles. 

 t. Theca, which probably is here displaced. It should 

 appear below, as drawn in E. melissce. 



Figs. 6 & 7. — The elytron and wing of Typhlocyha 

 geometrica. 



