48 PROCEEDENTGS OF THE NATIONAL MUSEUM vol. 115 



the genus Diarhabdosia the first species listed and treated by Hamp- 

 son, Eustixis minima Butler = Diarhabdosia minima (Butler). 



I am not further concerned here with Diarhabdosia except to say 

 that it appears to be more closely related to Clemensia Packard and 

 Talara Walker than to Rhabdatomis and Haematomis Hampson. 



The species included in Rhabdatomis differ from those included in 

 Haematomis in possessing a well-developed proboscis and in having 

 narrower forewings strongly marked by two fasciae. In Haematomis 

 the proboscis is developed very wealdy and on the forewing the dark 

 ground color is divided weakly into two fasciae with a third one 

 sometimes faintly indicated. In venation Rhabdatomis differs from 

 Haematomis in having the origins of veins 3, 4, and 5 on the forewing 

 much farther apart and in having the origin of vein 10 closer to the 

 stem of 7, 8, and 9. 



The venation of Rhabdatomis is as follows: Forewing with vein 2 

 from past middle of cell and from near outer third; vein 3 from just 

 before lower angle of ceU; 4 and 5 separate; 4 from lower angle and 5 

 from above lower angle of cell; 6 from weU below upper angle; 7 from 

 stalk of 8 and 9; veins 10 and 11 free; 10 from nearer stem 7, 8, and 9 

 than 11 ; 11 from near middle of cell and curved toward 12, sometimes 

 distally coincident with 12. Hind wing with vein 2 from about outer 

 third of cell; 3 stalked with 4 from lower angle of cell; 5 from near 

 middle of cell; 6 and 7 stalked from upper angle of cell and 8 from just 

 before middle of cell. 



Key to the Species of Rhabdatomis 



BASED ON EXTERNAL CHARACTERS 



1. Antennae annulate 2 



Antennae evenly colored fuscous or gray 3 



2. Hind tarsus fuscous; large species, length of forewing 11 mm, (figs. 18, 



19) mandana 



Hind tarsus straw yellow; small species, length of forewing usually between 

 7.5 and 8.6 mm., nevermore than 10 mm. (figs. 26, 27) cora 



3. Fuscous color covering nearly two-thirds of hindwing above (fig. 17) . dognini 

 Fuscous color covering only one-half or less of hindwing above 4 



4. Submarginal fuscous fascia in upper half of forewing above nearly divided in 



the middle by the yellow ground color of costa (fig, 20) ... . melinda 

 Submarginal fuscous fascia entire 5 



5. Abdomen fuscous above pueblae 



Abdomen straw yellow above 6 



6. Costal margin of hindwing below entirely fuscous 7 



Costal margin of hindwing below with at least basal half straw yellow . 10 



7. Hind tarsi straw yellow (fig. 16) zaba 



Hind tarsi fuscous 8 



8. Fuscous color of apex of hindwing above not extended along margin below area 



opposite discal cell (figs. 32, 33) pusa 



Fuscous color of apex of hindwing above extended to vein 2d A 9 



