LIST AND DESCRIPTIONS OF SPECIES. 



i. Lais guttifera Selys. 



d\ Individuals vary as to the presence or absence of occipital tuber- 

 cles. The yellow of the inferior part of the metepimeron is one-third 

 to one-fourth as wide as the sclerite and is absent in the oldest examples. 

 Pale, cleft, anterior lamina one-third to two-fifths as long as segment 

 two, posterior hamule very hairy anteriorly. Young males have hardly 

 any coloring at the tip of the hind wings. Tips of the inferior ap- 

 pendages in profile view slightly bifid, upper branch curved upward 

 and cephalad. 



Dimensions. — Chapada : abdomen cJ 1 35-5-37, ? 3°-5 _ 34 > hind 

 wing c? 25.5-28, $ 26.5-28 mm. 



Sapucay : abdomen c? 37.5-40.5, 9 34; hind wing $ 28-30, $ 29 

 mm. 



Habitat. — Brazil : Chapada, by H .H. Smith, 6 cT and parts of 8 

 others, 5 $ and parts of 7 others. Carnegie Museum, Pittsburgh. 

 Paraguay: Sapucay, by W. T. Foster, December, 1899, 1 <$ No. 

 69; January, 1900, 2 c? no. 6q ; February, 1900, 1 d\ 1 ?. United 

 States National Museum. 



2. Lais fulgida Selys. 



Founded on a young male from Rio Napo, Ecuador, " de sorte que 

 la gouttelette terminale obscure des ailes inferieures n'est que faible- 

 ment indiquee. " 



In 1880, de Selys wrote (Compt. -Rend. Soc. Ent. Belg. , t88o, 

 p. 1) : " La fulgida differerait des trois autres [Jiauxwelli, devillei, 

 cupr<za~\ par le bout des ailes inferieures du male sans gouttelette 

 obscure, mais legerement grisatre, se rapprochant ainsi de la metallica 

 dont elle n'est peut-etre pas distincte." 



The present pair from Iquitos were labeled "fulgida ? ", repre- 

 senting possibly Hagen's identification. They agree with the original 

 description of fulgida in size, in the brilliant coppery color of thorax 

 and of abdomen, and in the superior appendages of the male. The 

 hind wings of the male, however, have a well-marked brown spot at 



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