LIMOTETTIX NIGRlCOEillS. 89 



another bar nearer to the apex, which crosses to the 

 posterior margin of the corium. When the wings are 

 closed these bands form often an elegant lozenge- 

 shaped mark, with a pale central interior. 



This species is very variable, both as to tint and 

 markings. 



Legs yellow or else pale, and without any streak on 

 the hind tibias. Abdomen brown, with yellow seg- 

 mental bands and a black apex. All beneath yellow. 



Taken on oaks during July and August, but it is 

 said to be scarce in Britain. 



Size with wings, 0*16 inch, or 4*00 millimetres. 



My figures are from examples in the cabinets of 

 Mr. Douglas and Dr. A. Piffard. 



In many respects this insect seems to resemble 

 Gnathodus in markings. It may be regretted that there 

 should be such similarity of names in these closely- 

 allied genera. Thus we have Thamnotettix variegata and 

 Limotettix variata ; and, again, Thamnotettix attenuata 

 and Limotettix antennata. The adoption of an old 

 synonym, however, might produce further confusion. 



Limotettix nigricornis, Sahib. Plate LX., 

 figs. 1 to Ic. 



Thamnotettix nigricornis, Scott. 



Limotettix nigricornis, Sahib. ; Edw. pt. ii. p. 73. 



Elongated, narrow, golden yellow in colour. Vertex 

 obtuse, punctured on each side, between the eyes, by 

 two larger and two smaller spots. Eyes grey. Antennae 

 black and much longer than half the body. Elytra 

 subpellucid, each with a fuscous oblique band; nervures 

 yellowish. Legs yellow, streaked and setose. 



The male was unknown to Sahlberg ; but Mr. 

 Douglas sent me an example of L. 7iigricornis, which I 

 figure and believe to be of that sex. It is smaller and 

 more taper than the female, with five obscure brown 



