72 THE CANADIAN ENTOMOLOGIST. 



showing through. Abdomen short and broad, brownish black ; second 

 segment above thickly yellow pilose in the front part, behind more or less 

 black, its hind border and the hind borders of the remaining segments 

 conspicuously fringed with white tomentum ; second, third and fourth with 

 black somewhat intermixed with yellowish tomentum ; remaining segments 

 more or less clothed with yellowish pile, third and fourth segments on the 

 sides with conspicuous tufts of black pile. Lamellae of the ovipositor 

 slender, black, about as long as intermediate femora. Legs brown, femora 

 concealed by abundant yellow pile, especially in the ])roximal parts, tips 

 yellowish, hind' tibiae and tarsi blackish. Wings hyaline, more slender 

 than those of R. Sackc/ii, first and second submarginal, and first and second 

 posterior cells open, third and fifth l>'ing along the posterior margin, separ- 

 ated by the vein running into the ])Osterior border. Leiigth 12 m., of 

 wings II m. Two specimens, Florida, Prof Riley. 



When denuded, the second and third segments of the abdomen may 

 show a large reddisli spot on each side ; they are probably not, however, 

 a constant mark. This species agrees with /t". cai/casicus. Fischer, in 

 having the second posterior cell open. 



'I'he three other s])ecies of this gentis now known are R. Taitschcri, 

 Fischer, and R. cai/casiti/s, Fischer, from Southern Russia and Asia Minor' 

 and R. albo/asciatiis, A\'ied., whose habitat is unknown. That volaticus 

 is not the same as alhofasciatiis seems evident from the description of the 

 abdomen. 'J'lie white fasciae are on the extreme hind borders, with the 

 remainder of each segment black, while in Wiedemann's species the 

 white fasciae are in front. 



ON THE NORTH AiM1<:R1CAN CAL1TN-1<: R) HELlOTHINJi. 



r.V A. R. (IROTK. 



Since the groups are very difiicult of scientific definition in the N'oc- 

 tuidce, the present must not be considered as standing on more than a 

 comparative basis. In my New Check List the genera are arranged 

 between the Calpiiicc and Hr/iothi/ue. The arrangement I would only 

 modify by restricting the Calpiiue to the North American genera — Calpc, 

 with one species, perhaps the same as the European, and Phiprosopus, 

 with the species callitrichoidcs, called a Geometrid by Zeller, and which 

 in outline has a rcscmljlance to the aberrant Noctuid genus Dorvoc/cs, 



