BY F. W. GODING. 3 



Dating in one or two small teeth. The tegmina (upper wings) are 

 more or less lanceolate, and are divided into two distinct parts, 

 the corium and the clavus. The former occupies the greater 

 portion, and has, arising from the base, the costa and three longi- 

 tudinal veins, the radial and two ulnar, which are forked to form, 

 with transverse venules, the variously formed cells. These are 

 usually the costal, radial, two ulnar, one or more discoidal (these 

 may be absent), and five apical cells, the last a distinguishing 

 characteristic of this group. The clavus occupies the interior of 

 the tegmina, being separated from the corium by a suture, which 

 is represented in the plate of this work by dotted lines. It has 

 one or two veins arising from the base, and may have the sides 

 parallel. or gradually narrowed to the apex. The tegmina may be 

 free, or more or less covered by the lateral borders of the posterior 

 process of the pro thorax, the free part more or less coriaceous and 

 opaque. They are surrounded by a margin which may be very 

 narrow, the veins even reaching the edges, or very broad, occupy- 

 ing nearly one-half of the tegmina. The wings (lower wings) 

 are also divided into two parts, the corium and clavus, the former 

 having the costa and three longitudinal veins arising from the 

 base, forming three basal and three or more apical cells, while the 

 clavus may have one or two basal veins. They are always 

 vitreous, iridescent, and transparent. The legs consist of the 

 femora, tibiae, and tarsi. The femur is cylindrical and curved, 

 the tibia quadrangular, prismatic or spatulate, while the tarsus is 

 composed of three articles, the first long, the other two short, the 

 last ending in two claws. 



As regards the habits of the Memhracidce all that need be 

 mentioned is well told by Mr. Froggatt in an article which is 

 copied in these pages under S. virescens (p. 11). 



I take great pleasure in acknowledging assistance received in 

 the way of material, copies of papers, and words of encourage- 

 ment from Messrs. W. W. Froggatt, Charles French, Charles 

 French, Junr., Henry Tryon, A. M. Lea, J. G. O. Tepper, J. A. 

 Kershaw, A. Simson, George Masters, and George Lyell, Junr.; 

 also to Mr. A. D. Chater for the drawings. To Captain F. W. 



