a Remarkable Gall-producing Psyllid. 



307 



■with a murkcJ central constriction. Abdomen with a few 

 fine hairs, most numerous at the distal extremity. 



Pupa with tiie abdomen somewhat pyriform, being much 

 the widest in the region of the central seunncnts. Antennae 

 short and stout and very similar in form to that of the larva, 

 tlie most marked difference biing that there are six instead of 

 five segments. Legs practically hairless, similar in form to 

 those of the larva, but larger. Wing-pads well developed. 

 Abdomen nude, and the stigmata apparently obsolete. 



One pupa, evidently arrested at the period of ecdysis, shows 

 the sub-lying adult insect, which differs to a marked degree 

 from the pupal stage already described. The antennae 

 (fig. D) consist, as far as one is able to trace, of five seg- 

 ments only, and they are of a very remarkable form, bearing 

 on the segments 2-5 inclusive a number of clear ovate or 

 ellipsoidal patches surrounded by dark chitinous rings. Legs 

 similar in form to those of the pupa, but the segments are 

 clothed with fine short spines. Tergites of the abdomen 

 each with a series of (?4) large, isolated, and compound 

 groups of minute spinnerets. Penultimate segment with a 

 large transverse setiferous plate, and immediately beyond it 

 there are two minute ones also clothed with short hairs. 



21* 



