'J'kiacanthacyxa and Gynacaxtha 45 



spicuous T-spot; occiput yellow or greenish yellow; rear of head as in 

 in tenons. 



Prothorax and thorax as in interioris. 



Abdomen faded, apparently similar to that of interioris but darker, so 

 the lateral carinae on 4-7 are not conspicuously darker than surrounding 

 areas ; the four lateral brown spots on 2, described in interioris, not as distinct 

 as in that species; auricles each with six denticles; about ten scale-like teeth 

 in a single row on each side of the genital fossa anterior to the point of 

 convergence ; PL apparently wanting on 5-7 and other lateral spots appar- 

 ently reduced on these segments, but these details cannot be certainly de- 

 termined from the dried specimen. Appendages brown. 



Wings slightly clouded at the extreme base, costa and stigma light 

 yellowish brown, the end and j>osterior veins of the latter darker; venation 

 generally a light reddish brown, giving the wing a ruddy apearance at 

 certain angles. 



Legs similar to those of interioris, the tarsi less darkened apically. 



The following notes were made on the recently captured male : Eyes 

 above dark green, blue across the middle at the level of the frons, below 

 drab. Dorsum of thorax pale green over a limited area, shading out above 

 and laterally, sides dark flesh or light brown with shadings of green 

 beneath the wings; spots between front wings green, between hind wings 

 blue. Abdomen dark brown, nearly black. 1 and 2 paler, (sub) apical blue 

 rings on i and 2 and an interrupted basal blue ring on 3 ; dull drab lateral 

 spots on 3-9 ; beneath pale brown, darkest on 4-6. Flying at twilight along 

 a dry ditch near the botanical gardens. 



Dr. Calvert has seen the single male and in his opinion it represents an 

 undescribed species. He compared it with ereagris which has simpler 

 venation and superior appendages less widened apically. 



Material examined: Dutch Guiana, Paramaribo (Febrnar}^ 22, 1912. a 

 single male, the type, E. B. W.). 



With some question I have referred also to this species two males and 

 two females from Manaos, Brazil, collected by Miss H. B. Merrill, and in 

 the U. S. N. Mus. One of these specimens bears the following note : 

 Lake near Manaos, Santa Maria, February 22, 1908; first three segments 

 of abdomen with spots of sky blue ; e3'es blue ; sides of thorax green and 

 brown ; abdomen brown. 



In general appearance these four specimens are strikingly dififerent from 

 the type from Paramaribo, but I have found it impossible, with the limited 

 material, to satisfactorily separate them. The Brazilian specimens are 

 larger; abdomen male 53, female 56; hind wing male 52, female 55; superior 

 appendages male 6.7; stigma front wing 5.4-5.6; and the wing venation is 

 much more complex. For example, in addition to characters indicated in 

 the tabulation of venational characters, in the Brazilian specimens there are 

 two rows of cells between INL and Rs adjacent to the forking of Rs ; in the 

 type there is one row of cells throughout between M2 and Rs. In the 

 Brazilian specimens, moreover, the wings of all are uniformly brown-tinged 

 throughout and the veins are dark colored. To this character and to the 

 larger size are due the striking dissimilarity in general apearance of the 



