70 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



Described from male type, one male and fom." female paratypes as 

 follows: 



Venezuela: cf, Aroa (Schaus, 1895) [this specimen was para type cf 6444 of 

 Qonionota melobaphes Walsingham]; 4 ? ?, Valera (no date, E. P. deBellard) . 



In the males of this species the coloring appears to be generally 

 lighter than in the females. 



The five species melobaphes, contrasta, dissita, incontigua, and 

 determinata form a group with similar pattern and coloration, and 

 with genitalia of the same general type. On superficial appearance 

 the five can easily be confused, especially if the specimens are worn. 

 The genitalia, however, exhibit excellent points of distinction. Both 

 contrasta and determinata have a saccular process, but that of contrasta 

 is about three times as long as that of determinata; melobaphes lacks 

 this process; the males of dissita and incontigua are unknown. The 

 claspers of contrasta and determinata are similar but the terminal 

 setae of determinata are short and do not attain the saccular margin 

 as they do in contrasta. The aedeagi of all three show a very definite 

 relationship, but all differ as may be seen from a comparison of the 

 figures. The females (that of contrasta unknown) also show close 

 relationship in this group. All have the same type of signum although 

 the length varies. The details of the posterior part of the ductus 

 bursae differ and perhaps give the only reliable characters in the 

 females for distinguishing the species. In dissita the sclerotized part 

 of the ductus is short and funicular; in determinata and melobaphes 

 it is rather long and the ostium opens into a deep cuplike section; 

 the signum of determinata is much shorter (about three-fifths) than 

 that of melobaphes, incontigua, and dissita and is not so heavily sclero- 

 tized. In incontigua the sclerotized portion of the ductus bursae is 

 very short and broad in marked contrast to the other species. 



Gonionota bourquini, new species 



Figure 4; Plate 2 (Figs. 4, 5) 



Hypercallia melobaphes (Walsingham) Bourquin, not Walsingham, 1945, De Acta 

 Zool. Lilloana, vol. 3, p. 135, figs. 1, 2, 1 pi. 



Alar expanse 16-24 mm. 



Labial palpus pale maize yeUow; second segment pale brown on 

 anterior edge shading to reddish ocherous laterally; at apex and on 

 outer side a few carmine scales mixed, and with a jet black spot slightly 

 below apex on outer side. Antenna pale maize yeUow shading to 

 fuscous distaUy, basaUy strongly overlaid with reddish ocherous; scape 

 silvery white beneath, reddish ocherous above. Proboscis silvery 

 white. Head and thorax darker yellow than palpus with strong 

 mixture of carmine scales; tegula sometimes sparsely irrorate with 



