2o8 EXTOMOLOGicAL NEWS. fjitne, 'l8 



spines on dorsal surface of second abdominal segment. Eyes not 

 prominent, consisting of four distinct, red ommatidia. Antennae, one- 

 fourth of length of body. Legs and rostrum similar to those of pre- 

 ceding stage. 



2rd Stage A'yiuph. Length 0.88 mm., greatest width exclusive of 

 spines 0.43 mm. Shape oval, somewhat pointed at both ends. Slightly 

 narrow at anterior end. General color brown. Fine median line on 

 dorsal surface of head and prothorax widening on meso- and meta- 

 thorax and extending across the first three abdominal segments. Light 

 median dorsal spot on 7th and 8th abdominal segments. Spines on 

 lateral margins of segments similar to those of preceding stages save 

 those on pro- and mesothorax which rest on tubercles bearing two or 

 three smaller spines. Spines on remainder of dorsum similar to those 

 of preceding stage, but more pronounced. Antennae slightly longer 

 than those of preceding stage. Eyes, legs, rostrum similar to those 

 of preceding stage. 



4th Stage Nymph. Length 1.2 mm., greatest width exclusive of 

 tubercles 0.67 mm. Shape oval, sides distinctly marginate. Brownish 

 markings on dorsal surface variable. Lateral and posterior margins 

 of head brown, dorsal surface light at centre. Prothorax brown on 

 either side of centre, lobes light. Median portion of mesothorax 

 light, lobes dark. Metathorax, first, second and third abdominal seg- 

 ments all light in some specimens and a brown band on either side of 

 centre in others. Remaining abdominal segments brown, save for 

 lateral margins and median posterior portion of abdomen which are 

 light. Head bears a pair of separated spines on front, a pair to- 

 gether on vertex, a pair of separated tubercles bearing several spines 

 and hairs on top anterior to posterior margin. Prothorax lobed at 

 sides bearing a pair of spines on outer angle of lobe and two anterior 

 to these. Mesothoracic lobes bearing a pair of spines at outer angle 

 and a single one anterior to it. Spines on lateral margins of abdomen 

 beginning with the second segment. Beginning with the fourth ab- 

 dominal segment each lateral spine has an additional smaller spine 

 ventral to it. Tubercles and spines on abdomen somewhat similar to 

 those of preceding stage. Dorsal surface of lateral margin of each 

 segment bears a brown hair. Eyes reddish. Antennae white, one- 

 third length of body. Legs similar to those of preceding stage, ex- 

 cept that outer extremities of tibiae and tarsi are tinged with brown. 

 Rostrum extending to bases of third pair of legs. 



Sth Stage Nymph. Length 1.6 mm., greatest width exclusive of 

 tubercles 0.92 mm. Shape broadly oval. Posterior extremity of ab- 

 domen forms an obtuse angle. Head light, tinged with brown. Pro- 

 thorax with a brown band either side of centre, lobes light. Meso- 

 thorax light at centre, anterior portion and apex of lobes brown. 



