LIBURNIA DOtJGLASI. 57 



sciitellnm black, the former with a triangular, and the 

 latter with a trapezoidal, yellow spot. Abdomen yellow, 

 with reddish outer edges to the somites. Dorsal yellow 

 spots and black markings are seen on the abdomen. 

 Py gofer deeply notched, ochreous, with a yellow style. 

 Elytra grey, with dark nervures and an inner whitish 

 border ; length hardly more than half that of the 

 abdomen. Legs and antennas ochreous. 



The male styles, according to Fieber and Edwards, 

 are without the projecting inner teeth, as seen in L. 

 hrevi'pennis. This insect is very variable in colour, 

 some appearing even black. The males are not often 

 met with, and then only in early autumn, at which 

 time they consort with the females. 



Mr. Edwards states that Achrotyh hivittata of Fieber is 

 only the pupal condition of L. Famnairei or some form of 

 one of the nymphal Delphacida) ; and that the tubercles to 

 be commonly seen on such disappear when the insects 

 come to the adult state {vide Ent. Mo. Mag., vol. xxii., 

 p. 67). The same author states that " amongst hun- 

 dreds of nymphs of Delphacidse he has examined, not 

 one has occurred which does not present the Achrotyle 

 face." Amongst species particularly noted as tuber- 

 culated, he instances Lihurniaforcipata, L. unicolor, and 

 Stiroma pUridis (see my Plate XXL, tigs. 2 and 2 a. 



LiBURNiA DouGLASi, Scott. Plate XVL, figs. 5 to 5 c. 



Lihurnia Bouglasi, Fieb., C. E. pt. iv. 30, 27. 



Very small. General colour yellow. Vertex rounded 

 in front, with a yellow line dividing the vertex from the 

 eyes, and another connecting these lines. Frons and 

 clypeus black. Pronotum with four fairly distinct 

 yellowish keels. Elytra brown, with paler veinings, 

 and rather more than half the length of the abdomen. 

 Abdomen brown, and barred with yellow. Truncated 

 at the apex. Pygofer of the male yellow, with a shal- 



