110 ENTOMOLOGICAL NEWS [xxxii, '21 



equal length, gradually narrowing posteriorly and with sides lobed ; 

 lobes more pronounced posteriorly. Eighth abdominal segment approx- 

 imating the first seven in length, long, narrow, slightly tapering apically. 

 Anal segment or tube linear, sides parallel, about two-thirds length of 

 preceding segment, protrusible, in some specimens drawn within the 

 preceding segment. 



Head bearing a number of minute tuberculate spines ; minute tubercu- 

 late spines on thoracic and abdominal lobes ; a number of minute spines 

 on eighth abdominal segment; dorsal, median pair of minute tuberculate 

 spines on meso- and metathoracic and abdominal segments 2 to 7. 



Legs well-developed, tibiae and tarsi bearing several minute tubercu- 

 late spines. Rostrum extending to posterior margins of metathoracic 

 legs ; lancets long. 



Color: upper surface mottled brown. Ventral surface similar in 

 color except that of abdomen, which is yellowish white. Tibia and 

 tarsus 'annulated in some specimens. 



Second Stage Nymph. Length, 3.5 mm. Width of head, including 

 eyes, 0.8 mm. Somewhat similar to preceding stage. Triangular shape 

 and dorsal ridge more pronounced. Body less elongate, broadest at 

 second abdominal segment. Head bent ventrally, triangular, notched 

 at anterior dorsal apex. Mesothorax extending medianly anteriorly. 

 Minute spines more numerous .and more pronounced. Viewed laterally, 

 thorax presents a distinct, gradually rounded crest. Eighth abdominal 

 segment bearing double row of median spines and a lateral row on 

 either side, together with smaller scattered spines. Dorsal tubercle 

 bearing spines extending posteriorly. Antennae comparatively shorter 

 than in preceding stage. Rostrum extending to second abdominal seg- 

 ment. Color similar to those of preceding stage. 



Third Stage Nymph. Length, 4.5 mm. Width of head, including 

 eyes, 1.1 mm. Somewhat similar to preceding stage, but less elongate 

 and broadest across anterior portion of abdomen. Anterior ventral 

 margin of head somewhat keeled and extending laterally in front of 

 eyes. Crest of prothorax more pronounced. Dorsal median portion of 

 prothorax extending posteriorly. Dorsal median portions and lateral 

 margins of mesothorax extending posteriorly. Ridge of crest on first 

 two thoracic segments tuberculate. A median depression between the 

 pairs of minute dorsal spine-bearing tubercles of abdominal segments. 

 Tubercles and spines more pronounced. Rostrum extending to second 

 abdominal segment. Color similar to that of preceding stage; mottling 

 more pronounced. Tip of eighth and all of ninth abdominal segment 

 dark. Tip of ninth abdominal segment bears a circle of minute apical 

 spines. 



Fourth Stage Nymph. Length, 5.5 mm. Width of head, including 

 eyes, 1.5 mm. Somewhat similar to preceding stage. Head bent more 

 ventrally, being fairly well covered by prothoracic segment. Crest of 

 prothorax more pronounced anteriorly. Wing pads of mesothorax 



