1877.] .-^l 



and the melanic xavietj furcnfa, Fab., and here 

 also, finding the projecting pronotuin if moved 

 over the mesonotuni elicited a sharp, high 

 creak, I submitted the more rounded surface 

 of the mesonotum to a high magnifying power, 

 and found the cause to exist not as before, in 

 lateral limse, but in an obliquely striated band, 

 c. Mesothorax of Noionecta ^jii^g along either side of the central lenticular 



glauca, front view. i • n •jini •,/> , 



/. I. liiafe. depression, well seenin the dark variety, /wrcara, 



contrasting, as in other cases, by its whitish appearance with the other- 

 wise polished, punctured surface. 



The sounds emitted by these bugs seem low when compared with 

 those that can be reproduced in many Longieorn beetles. I am not 

 aware that any of the species stridulate when seized, and although 

 many emit clicking sounds when confined in a glass vessel, I never 

 could detect an instance in which their production was not accomj^anied 

 by the head striking on the bottom or sides of the receptacle. To 

 examine the limae in these and other insects, especially when they are 

 minute, a dull, cloudy day, when there is reflected light, should be 

 selected. 



Guildford : 23;-rf 3Iarch, 1877. 



DESCEIPTION OF A NEW SPECIES OF TEIOZA. 



by johx scott. 



Trioza Dalei. 



S . Dark brown. Head — crown dark brown, slightly paler next the eyes ; posterior 

 margin slightly concave ; face : lobes dark brown, almost as long as the crown 

 down the centre, apex somewhat acute ; antennce white, about as long as the 

 crown and thorax together, 1st joint dark brown, 2nd at the base brown, apex 

 of the 8th, 9th, and 10th black. 



Thorax — ^ronotum yellow ; mesonotum dark brown, central portion on the sides, at 

 the insertion of the elytra and wings, yellow, on each side of the centre two 

 somewhat indistinct yellowish longitudinal lines, posterior or scutolliform por- 

 tion yellow. Elytra slightly turbid, about two and a half times as long as 

 broad ; costal margin, from the base to the apex, almost in a continuous curve, 

 apex scarcely acute ; nerves yellow at the base, towards and at the apex brown ; 

 radius short, straight, terminating considerably before the apex, base wide; 

 apical fork of the cubitus small ; outer arm of the dorsal fork describing a 

 curve about equal to one-sixth of a circle. Legs yellow ; tarsi : 2nd joint and 

 claii's black. 



