8 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



Group SEPARATA 



This group is very similar to the preceding one, but the species 

 all have the scutellum more or less deeply sulcate centrally at apex 

 and on each side of the sulcus a distinct convexity which is either 

 glossy black or brown and distinctly shining. The arista is bare at 

 base and the tegulae sometimes elongated. 



I have before me at present the following three species, separata 

 Hendel, conjuncta Hendel, and hiarviata Malloch, all Australian. 



Group SEXPUNCTATA 



This group was named Notopsila by Osten Sacken, his intention 

 being to supplant Pachycephala Doleschal, which was preoccupied, 

 the genotype being tnohnikei of that author. Hendel does not in- 

 clude this species in his key, nor does he include sexpunctata Osten 

 Sacken, possibly because they were unknown to him. I have before 

 me specimens which are apparently referable to the last-mentioned 

 species, and give below some data upon the species and one other. 



Osten Sacken, in defining the genus Notopsila said that the clypeus 

 is entirely concealed, but this is not the case, there being a very nar- 

 row, vertical, chitinous strip of it visible in all the specimens I have 

 examined, though it is very much narrower than in any species of 

 Euprosopia in any of the other groups known to me. He emphasizes 

 the emargination of the tip of the scutellum as a character and also 

 the disposition of the marginal bristles on same, but, like Hendel, I 

 am not inclined to consider this as a good character for distinguish- 

 ing genera in this subfamily. The structure of the scutellum differs 

 from that of the separata group in that there are no glossy convex 

 lateral areas. One striking character in the two species before me is 

 the much wider space between the antennal insertions, the flat facial 

 carina at this point being, as Osten Sacken states, about half as wide 

 as the frons at vertex. There are but two vertical bristles present, 

 and the arista is bare or pubescent at base. The tegulae are not 

 elongated. 



EUPROSOPIA SEXPUNCTATA Ostcn Sacken 



Euprosopia sexpunctata Osten Sacken, Berl. Ent. Zeitschr., vol. 26, heft 2, 

 1882, p. 210. (Notopsila.) 



The scutellum is not always centrally emarginate at apex, some 

 of the specimens having it regularly rounded or slightly transverse. 

 The face is testaceous yellow, with a small black spot in the lower 

 extremity of each antennal fovea, one on each parafacial opposite 

 base of antennae, and one on each side of the facial carina which 



