194 (February, 
Abdomen pale yellow, above frequently brownish, side margins and dorsal line pale ; 
genital segment pale yellow, almost white. 
Developed form 9. 
Like the above in all particulars ; ovipositor black. 
Undeveloped form g§ and 9. 
Clear pale yellow. 
Thorax : pronotum and scutellum between the keels almost white. LElytra lancco- 
late, as long as the abdomen, middle nerve at the apex generally brownish. | 
All the other characters as in the developed forms. 
Length : developed, 1}—1 lines ; undeveloped, 1% line. 
Very closely allied to ZL. Scotti, and the resemblance is most 
remarkable in the undeveloped form. It is, however, more delicate 
than that insect, is smaller in every way, and has not the black spot on | 
the cheeks, nor the ovate black spot at the apex of the elytra. | 
T am not aware that the developed form of Z. pallidula has ever 
been noticed before, and it is on this account that I have described it. | 
Although the type (undeveloped) which Dr. Stal was good enough to | 
send me has zo dark markings on the elytra, yet in fresh specimens 
there are more or less traces of the middle nerve being brownish next 
the apex. 
Rare in the developed state ; undeveloped form common. 
Taken by myself at Wimbledon, in September. 
Species 22a.—LIBURNIA EXTRUSA, 7. 8. 
Undeveloped form 3. 
Yellow. Styloid processes black, viewed from above they are seen to project | 
outwardly, and appear like a f}. 
Head: crown yellow, the foveze small, somewhat deep and distinct. Forehead and 
face slightly dusky, keels, and a narrow transverse line a little above the lower 
margin of the eyes, pale yellow, base of the forehead brownish ; clypeus © 
brownish, keels pale yellow ; cheeks yellow, inner margin narrowly brownish. 
Antenne: 1st joint pale yellow, 2nd pale brownish-yellow. yes black. 
Ocelli black. 
Thorac: pronotum pale yellow, kecls distinct but not prominent; sides more or 
less fuscous beyond the keels. Scutellum pale yellow, keels distinct, sides 
more or less fuscous beyond the latter. LElytra pale yellow, covering about: 
two-thirds of the abdomen, rounded at the apex, nerves with minute granules, 
marginal nerve, except round the pale yellow apex, white. Sternwm yellow ; 
metasternum on the sides with a black spot. Legs yellow, 1st and 2nd pairs: 
somewhat dusky ; claws black. 
