300 THE CANADIAN ENTOMOLOGIST. 



band ; ungues simple and equal. The metatarsi and tarsi on the hind 

 legs have usually only minute apical bands, but occasionally the tarsal 

 bands involve both joints. 



Wings light, heavily covered with dark and light scales, forming on 

 the costal portion spots as follows : Apex light, extending on tip of ist 

 long, and upper branch of 2nd long., then a short dark spot, which 

 includes ist long, and upper branch of 2nd long., followed by a light spot, 

 about one-third longer than the dark, and extending also on ist long.; 

 second dark spot about as long as the preceding one, and extends on 

 ist long.; then a light spot followed by the third dark spot, which is much 

 the longest of the dark spots, includes the sub-costa its full length, and 

 extending on the ist in the centre, suggests the "T" of J^ossii; there is 

 also at times a second dark spot on the ist long, under this long one (like 

 the marking in Lud/owi), and the relative lengths of all the costal spots 

 vary so much that no measurements can be depended on. The fourth 

 spot is shorter again, and extends on the sub-costa and ist long. A 

 couple of small indefinite dark spots on the costa only at the base of the 

 wing. The wing field reminds one strongly of Lud/owi, and is fairly 

 stable; ist submarginal is slightly longer and about the same width as 

 the 2nd posterior cell ; bases nearly on a line, and the cells are noticeably 

 longer than those in Lud/owi, in which this species resembles Rossii. 

 Supernumerary cross-vein about half the length of the mid, which it meets, 

 and posterior cross-vein is also about the same length, and about two and 

 one-half times its length from the mid. Halteres light, knob fuscous. 

 Fringe mottled, light at apex of cells. Length, 3.5 mm. 



Habitat : Philippine Islands. Taken May (Bayamban), Sept. (Man- 

 garin), Dec. (Guimaras Is.), etc. 



This species occurs with Lud/o7vi at various places, and until Mr. 

 Theobald called my attention to the differences I believed it to be Rossii, 

 which it strongly resembles. The general colouring is, however, darker 

 in this resembling Lud/owi, and its great variability makes it extremely 

 hard to place definitely. Its relationship to these two species may be 

 indicated as follows : 



Wing venation like Rossii, and is constant. Palpal markings and 

 general colour like Lud/owi, also constant. Femoral markings (when 

 present) like Rossii, never like L.ud/o7vi. Wing markings extremely 

 variable, and may resemble either species. The balance seems to lie in 

 favour of Rossii, and I have therefore referred it to that species. 



