﻿The Life History of Two Species of NaMdae 163 



nearly even with those of the metathorax, their color dusky -with a 

 few white spots; pleurae of thorax dark-olive; dusky design with 

 central, rectangular, clear area on dorsum of anterior abdomen; 

 row of round, green spots on lateral sides of abdomen below 

 margins ; dark spots on fore-femora at bases of teeth ; tibia with 

 double row of black spines or teeth along inner side, hairy ; meso- 

 thoracie femora with small, stiff bristles developing below and a 

 few dark spots; metathoracic tibia lightly spotted. 



At the end of the instar the dusky marks on dorsum of head 

 are enlarged ; characteristic design on prothorax, nearly com- 

 pleted ; two large red spots on dorsum of first abdominal segment, 

 also at lateral edges of third segment. 



Fifth Instar 



Length about 5.12 mm. ; nymphs with faint markings of ovi- 

 positors on abdomen appear longer than the others, which are 

 probably the males of the species; body broader in proportion to 

 length than in pi-eceding instar ; antennae about as long as body ; 

 sides of tylus brownish ; large olive patches on sides of head behind 

 eyes ; black design on prothorax about completed ; red streak run- 

 ning dorsally and mediall}' just posterior to head and extending on 

 prothorax ; mesothoracic wingpads long and narrow, reaching to 

 about one-half the fourth abdominal segment ; metathoracic wing- 

 pads not grown beyond posterior edge of first abdominal segment ; 

 clear area on dorsum of abdomen surrounded by light olive and 

 containing the three characteristic yellow-Avhite spots; lateral mar- 

 gins of abdomen broad and compressed; red dashes through mid- 

 dorsum of abdomen ; pleura of thorax brownish ; body whitish 

 below ; row of green patches along side of abdomen ventral to 

 lateral edge ; prothoracic femora well developed, the ventral row 

 of teeth nearly disappearing; mesothoracic femora with few spots, 

 small bristles below ; metathoracic femora with few spots and red- 

 dish ring at apical end ; tibia long and with very few spots. 



Toward the end of the instar the broad al)dominal margin is 

 slightly reflexed; red design of indefinite shape on center of pro- 

 and mesothorax ; continuous red streak through mid-dorsum of 

 abdomen ; red dashes at extreme outer margin of segments, also 

 small triangular white patches ; red dashes along under side of 

 lateral margins; apical joint of tarsus beginning to show signs of 

 division into parts, forming a three-segmented tarsus. 



The Adult 



N. riifuscKlus is found in both the hmg and the short-winged 

 form. The adult male nabid is about 5.7 mm. long ; widest portion 

 of thorax is 1.3 mm.; widest part of abdomen is 1.9 mm.; adult 

 female nabid is about 6.5 mm. long; widest portion of thorax is 

 about 1.4 mm.; widest part of abdomen, about 2.2 mm.; general 

 shape elongate-oval ; antennae a little shorter than body, second 

 joint dark at apical end and outer two joints dark ; general color 

 tan with dusky markings; proboscis extends between profhoracic 



