14 Annals Entomological Society of America [Vol. IV, 



Creagris Hagen. 



This genus is known by the parallel forks of the cubitus in 

 the anterior wings; there are but two rows of cells between the 

 forks and these are separated by a nearly straight vein ; the anal 

 vein also runs parallel to the cubital forks for some distance. 



Type — C. plumbeiis Oliv. 



Many species are known by the names, but several of these 

 names apply to variations of C. plutnbeus. Whether these 

 forms should be kept distinct or all united under the one name 

 must be determined by larger collections from representative 

 parts of Africa. 



The forms I have examined are distinguished as follows: 



1 . Venation pale, unmarked 2 



Venation marked with black and white 5 



2. Apex of hind-wings with a fuscous streak 3 



Apex of hind wings unmarked 4 



3. Very large species diana 



Species of moderate size nubifer 



4. Pronotum with indications of two narrow submedian lines; femora dotted 



with black murinus 



Pronotum with a median stripe or absent; femora scarcely dotted with black. 



africanus 



5. Wings with black longitudinal streaks nigrostrigatus 



Wings without streaks 6 



6. Four large black spots along the radial sector in the fore- wings. . . . pretiosa 

 Xo such large spots 7 



7. Xo black band below antennas S 



A black band below antennae, vertex with a frontal ridge, venation strongly 



marked with black and white aegyptiacus 



8. An oblique dark mark at end of anal vein in fore-wings; venation very plainly 



marked with black and white mortifer 



Xo marks on wings; venation only faintly marked with dark and pale. . . 



plumbeus 



Creagris pretiosa n. sp. 



Face pale, a median vertical black line, and a brown spot under 

 each antenna; antennas brown, base yellowish; vertex with a black band 

 in front, a row of connected black dots, and behind are six separated 

 black dots, the submedian ones being longitudinal; pronotum gray, 

 black on the sides and a submedian pair of black stripes, broadest in 

 front; thorax gray, black marks on the lateral lobes and the usual black 

 band on the mesonotum; abdomen black above, pale beneath. Legs 

 brown, with much gray hair, femur I black on inner tip, tibia I black 

 in middle and near tip, middle leg similar, hind legs paler, the tibiae 

 black only at tip, all tarsi black, except yellow on basal and most of 

 apical joint of tarsus I. Wings hyaline, venation black, interrupted 

 with pale, the cross- veins mostly wholly black; four large black spots 

 along the radial sector of forewings, another smaller at base of the 

 stigma, a black streak along base of the cubital vein, small black spots 

 at forking of cubitus and farther out on cubitus, one on a crossvein 

 connecting median to the first branch of the radial sector, and one at 



