genera and species of the group of PsyllidcB. 455 



ferior vix nisi rectus ; distantia inter furcse superioris 

 ramos eadem quae ramum superiorem (secundum nervum 

 marginalem) a radii apice distinet ; distantia inter furcse 

 inferioris ramos arege proximae margine infero duplo 

 longior. Abdomen' superne viridulum, obesum ; seg- 

 menta duo basalia superne flavida seu rufescentia ; seg- 

 mentorum singulorum latera macula triangula sub- 

 irregulari, nigra, notata ; margines postici anguste nigri. 

 Pale green. Head deflected almost perpendicular to 

 the body. Crown oblong, transverse, yellowish, thickly 

 and finely punctured; length down the centre greater 

 than half the width between the eyes ; posterior margin 

 angulate ; anterior margin bilobate ; disc with a comma- 

 shaped fovea on each side towards the base. Face lobes 

 very short, slightly lunate, pale yellowish white. An- 

 tennae short, clavate, pale yellowish ; 1st joint stoutest, 

 two and a half times longer than the 2nd ; 3rd, 4th, and 

 6th subequal ; 5th two-thirds the length of the 3rd ; 7th 

 thin, cylindrical, nearly as long as the 6th ; 8th broad 

 oval ; 9th cup-shaped ; 10th minute ; three terminal 

 joints black. Eyes placed on the side of the head ; 

 viewed from above spherical triangular, from in front 

 almost hemispherical. Thorax : pronotum greenish, as 

 wide as the head and eyes together, breadth, in the 

 middle, nearly equal to half the width of the crown ; 

 anterior margin slightly convex ; posterior margin nearly 

 straight ; centre of the disc with a small fovea and two 

 others on each side, the inner ones in a line with the 

 inner margin of the eyes ; mesonotum longitudinally 

 flatfish ; transversely slightly convex ; greatest breadth 

 across the insertion of the elytra ; dorsulum transverse, 

 semisexangular, green, anterior margin narrowly red- 

 dish brown ; central portion reddish brown, anteriorly 

 green. Elytra clear, transparent, finely wrinkled trans- 

 versely ; length two and three-quarter times that of the 

 breadth ; nerves white, covered with elongate black spots, 

 unequal in size; stigma nearly as long as the basal 

 costal portion of the marginal nerve ; radius elongate, 

 . terminating in the apex ; cubitus petiole about half the 

 length of the arm of the upper furcation; upper furca- 

 tion long, narrow, measured down the centre a little 

 greater than one-third the length of the elytron ; arm of 

 the lower furcation less than half the length of the 

 petiole ; lower furcation elongate ; upper branch waved, 

 lower branch almost straight ; distance between the 



