v2 Psyche [June 



Fourth Stage Nymph: Length 1 mm., greatest width 0.51 mm. 

 Color similar to that of preceding stage. Shape oval; truncate 

 and sinuate at middle of front; outer angles of head broadly 

 rounded. Division between head and thorax indicated by slight 

 indentation at lateral margin. Thorax gradually widening to 

 posterior portion where it is broadly rounded. Dorsal surface of 

 head and thorax covered with a shield like expansion. Wing-pads 

 visible and extending to posterior margin of thoracic expansion. 

 Abdomen narrow at anterior margin, broadening to anterior 

 fourth; remaining portion broadly rounded so that abdomen is 

 almost circular in outline. A fringe of minute spines on lateral 

 margins of head and thorax. Several spines on lateral margin of 

 «ach abdominal segment. Eyes dark brown. Antennae broadest 

 at base, gradually tapering to tip which is slightly truncate. An- 

 tennae more or less transversely ridged. Apical segment is one and 

 one-half times the length of the basal segment. Tip of apical 

 segment bears two spines. Legs three jointed, somewhat curved. 

 The two basal segments are subequal in width, surface of second 

 segment slightly convex, third segment slightly convex and taper- 

 ing to tip which bears a pair of minute hooks. Legs bear a few 

 minute scattered hairs. Basal sheath of rostrum extending to 

 bases of second pair of legs. 



Fifth Stage Nymph: Length 1.7 mm., greatest width 1 mm. 

 General shape oval. Dorsal shield like expansion of head and 

 thorax more pronounced. Head truncate in front, slightly convex, 

 lateral margins broadly rounded. Front and anterior dorsal 

 portion of head bearing a number of minute spines resting on mi- 

 nute tuberculate bases. Lateral expanded margins of thorax 

 abruptly rounded from sides of head. Sides of thorax moderately 

 convex extending to posterior margin of second abdominal segment. 

 Wing-pads extending to posterior margin of shield like expansion. 

 Lateral margin of prothorax bears a row of minute spines each 

 resting on a minute tuberculate base; a few scattered minute spines 

 on dorsal surface near margin especially in the anterior region. 

 Sides of abdomen are convex making it broadly oval in outline. 

 Abdominal segments well defined, lateral margins of each bearing 

 a number of minute spines resting on minute tuberculate bases. 

 A number of very minute spines on dorsal surface near margins. 

 Eyes prominent, lateral, covered by dorsal expansion of head. 



