84 ' [September. 



Trioza iii the young form, as out of about 100 leaves whicli I opened 

 only three produced the object of my search. 



I have taken, and bred, a few males, but have only seen one 

 female, which made its escape. The insect is now in the nymph state 

 with us. 



La Lironde, near Montpellier : 

 1th July, 1879. 



DESCEIPTION OF A NEW SPECIES OF THE FAMILY TSYLLIDM. 

 BY JOIIX SCOTT. 



Genus PLOEIA, F. Low (Verh. z.-b. Ges., vol. xxviii, p. 590). 



Floeia Horvathi. 

 $ . Greenish-grey. Crown pale brownish in the middle ; posterior 

 margin concave, length down the centre equal to about one-half the 

 breadth. Face-lobes stout, projecting forward, longer than the crown 

 measured down the centre, apex round, divergence about equal to the 

 base of either, clothed with longish fine projecting hairs, and from the 

 apex of each lobe a longer and stouter one. 'Elytra milky-white, 

 length scarcely three times as creat as the breadth ; costal margin 

 forming a continuous curve from the base to the apex ; stigma wanting ; 

 extending from the base to the apex is a broad brown streak, dentate 

 on the inner margin, and bounded exteriorly by the petiole of the 

 cubitus, and a triangi;lar brown patch having its base on the costal 

 margin and its apex a little way within the cell formed by the arms of 

 the cubitus. Legs greenish-yellow. Thiglis : inner margin with a 

 longitudinal blackish-brown streak not reaching the base or apex. 



Head — croion greenish-grey, pale brownish in the middle, length down the centre 

 about equal to one-half the breadth, posterior margin concave. Face-lobes 

 stout, projecting forward, longer than the crown measured down the centre ; 

 apex round, divergence about equal to the base of either, clothed with longish 

 fine projecting hairs, and from the apex of each lobe a longer and stouter one. 

 Antenna yellowish, fine, filiform, at least as long as the head and thorax to- 

 gether, 4th joint about three-quarters the length of the 3rd, 4th and 5th at the 

 apex narrowly black, 6tli and 7th more broadly and 8th to lOtli black, the two 

 terminal joints not thickened. 



Thorax — pronotum greenish-grey, horizontal, about equally broad throughout, 

 rounded at its extremities, close to which are two minute brown punctures ; an- 

 terior margin angulate, I'ounded in the middle ; posterior margin narrowly 



