NYMPHAL STAGES. 



First Stage. — Length .65 mm., width .36 mm. ; body slender, gen- 

 eral color pale yellowish dorsally, fading to white on the ventral sur- 

 face. Eyes red, antennae short, and club-like at the tip. 



Second Stage. — Length 1.09 mm., width .52 mm. ; body oblong- 

 ovate, general color a pale yellowish white ; margins of abdomen and 

 thorax and dorsal surface of head, thorax and abdomen armed with 

 spiny tubercnles, tubercules on dorsal surface dusky ; tips of anten- 

 nae and tarsi a light brown. 



Third Stage. — Length 1.53 mm., width .8 mm. : similar in form 

 to previous stage only larger, and has rudimentarj'^ wingpads ; dorsal 

 spines darker in color and regions round them dnslrs-. forming a dis- 

 tinct color pattern. 



Fourth Stage. — Length 1.75 mm., width 1 mm. : similar in form 

 to previous stage only larger, body markings darker: wingpads much 

 longer, their tips dusky-brown. 



Fifth Stage. — Length 2.3 mm., width 1.2 mm. ; body oblong-ovate, 

 dorsal surface more or less flattened ; general color a yellowish-grey, 

 "o^itli a few dark brown markings. Last six segments of the abdomen 

 provided on each side with a marginal tubercule armed with one 

 long and several shorter spines, the abdomen apparently terminating 

 in two of these spiny processes ; first two pairs of marginal abdominal 

 tubercules a dusky-brown. The metanotvm provided with two large, 

 dark-colored tubercules armed with spines, the abdomen provided with 

 three median, dorsal tubercules similar to those on the metanotum ; 

 wingpads each armed with a marginal tubercule and several marginal 

 spines. Head armed with three tubercules and two anterior marginal 

 spines; head light in color except posterior margin which is dusky; 

 prouotum light in color with two dusky bars near the anterioi" end 

 arranged in the form of a V. Metanotum dark, abdomen light in color 

 Avith dusky segmentation marks and dark-colored tubercules. Wing- 

 pads light colored with a dark spot on the disk, and with dusky tips. 

 Antennae about one-third the length of bodj', clothed with a few short 

 liairs, the tip somewhat club-shaped and dusky-brown in color. Legs 

 fairlj' long and slender, terminating in chitinizod claws, general color 

 light except tarsi whicli are dark brown. 



Adult. — This lace-bug is a delicate lace-like little insect belonging 

 to the lieteropterous family Tingitidae. It is one of the very few 

 representatives of this interesting family that inhabit the Island of 

 Porto Rico. It is about 3.5 mm. long, body dark, hood and lace-like 

 wings grey marked with brown. 



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