224 PROCEEDINGS OF THE ACADEMY OF [May-Oct.^ 



pattern of mummy brown to blackish-fuscous, which is in 

 general so heavy that at first glance it is supposed to be 

 the base color: eyes ochraceous-tawny overlaid with cloudings of 

 blackish fuscous; ocelli zinc orange; antennae mummy brown on an 

 ochraceous-tawny base: tegmina with the discoidal and all principal 

 veins suturad of the same regularly checked with blackish fuscous, 

 the base color of the veins being buffy, of the discoidal vein strongly 

 ochraceous-buff , the general infumation of the tegmina weak mummy 

 bi'own, with the immediate vicinity of the areal cross-veins hyaline; 

 wings infumate similar to the tegmina, but proximad and on the 

 radiate field more weakly so, the veins of the humeral field checked 

 similar to those of the tegmina, the veins of the radiate field with a 

 faint indication of similar but infrequent and attenuate checking; 

 internal face of the cephalic coxae in general uniformly pale; internal 

 face of the cephaUc femora largely blotched with fuscous; cephalic 

 tibiae with three rather indistinct bands of mummy brown; cephalic 

 metatarsi with incomplete median and distal annuli of fuscous, re- 

 maining tarsal joints each uni-annulate, median femora obscurely 

 tri- and caudal femora obscurely bi-annulate with fuscous clouds. 



Length of body, 24.2 mm.; greatest width of head across eyes, 4; 

 length of pronotum, 5.4; greatest width of pronotum, 2.8; length of 

 tegmen, 23; greatest width of tegmen, 6.4; length of exposed portion 

 of wing distad of tegmen, 2.4; length of cephahc femur, 6.1; length 

 of caudal femur, 7.2. 



The type of this interesting genus and species is unique. 



Eiuniopteryx laticoUis Giglio-Tos. 



1915. E[umiopteryx] luticollis Giglio-Tos, Bull. Soc. Entora. Ital., XLVI, 

 p. 141. [Paraguay; Province of Sara, Bolivia.] 



Goyaz, State of Goyaz. One male. [Hebard Cln.] 

 This specimen agrees quite well with the generic and specific 

 descriptions, although very slightly smaller than the original measure- 

 ments for the sex. The individual has been much damaged about 

 the wings and the median and caudal limbs, and in consequence 

 certain venational features are not as clearly discernable as might 

 be desired. The genus is not far distant from Pseudomiopteryx, 

 and also close to the genus Trachymio-pteryx, above described. The 

 principal features of difference between the latter genus and Eu- 

 iniopteryx are given under the diagnosis of Trachymiopteryx. 



