January i^gs-] 



PSYCHE. 



185 



Rhopalomera clavipes Fabiicius, Svst. 

 Aiitl. 329 (Dictya) ; Wiedemann, Analect. 

 Entom. 17, fi^. 12; Auss. Zw. Ins. ii, 571. 

 pi. X, f. 9. — South America. 



P Ropalomera tibialis Wallcer, Dipt. Saun- 

 ders. 375, pi. viii. f. 8. 



A true Rliop:ilomfc'i;i, allied to the 

 following species. Little can be made 

 from Walker's description, but West- 

 wood's figure, and such of the descrip- 

 tion as is not meaningless, seem to 

 indicate that clavipes and tibialis are 

 identical. Possibh , however, tibialis 

 is synonymou^with stictica. 



Rhopalomera stictica Wiedemann. Auss. 

 Zw. Ins, ii, 573; Scliiner, Reise der Novara. 

 Dipt. 322. — Brazil. 



The description of this species as 

 given bv Schiner applies well to two 

 specimens before me. 



Rhopalomera ? femorata Fabricius, Svst- 

 Antl. 326; Wiedemann, Auss. Zw. Ins. ii, 

 571. — South America. 



The position of this species cannot 

 be determined fioni the description. 



Rhopalomera maculipennis Macquart. 

 Dipt. Exot. ii. 3, 203, pi. xxvii, fig. 3. — 

 Brazil. 



Ropalomera punciipennis Rondani, Esame, 

 etc., 20; Schiner, Reise der Novara, Dipt. 

 232. — Brazil^ 



Ropatomera 5ij)iilts Rondani, I. c. — 

 Brazil. 



Front reddish yellow, brownish at the 

 middle and blackish about the ocelli ; a 

 slender silvery line on each orbit. First two 

 joints of the antennae reddish yellow, the 

 third black, except at the immediate base; 

 second joint with a small bristle above. Face 

 opaque yellow; cheeks a little more red- 

 dish, with light yellow hair. Palpi yellow. 

 Mesonotuin ochraceous yellow, with similarly 



colored pollen, beneath which thereare seen 

 three brown or blackish stripes. Pleurae for 

 the most part like the mcsonotum; a black 

 spot below the humeri, and the metanotum 

 in part pitchy brown. Abdomen black; each 

 segment on its posterior part with four nearly 

 contiguous silvery white spots. Legs reddish 

 yellow, the femora and tibiae in large part, 

 especially the posterior side of the four 

 anterior femora, pitchy brown or blackish; 

 all the metatarsi light yellow, the distal joints 

 brownish ; all the femora thickened, the hind 

 pair much so, and aH with rather long, light 

 yellow pile below; tibiae on the inner side 

 distallv with black pile; hind tibiae consider- 

 ably dilated and with four long bristles, each 

 inserted on a conspicuous tubercle; the four 

 posterior femora with spinous bristles on the 

 outer side inferiorly. Wings yellowish hya- 

 line, with numerous small, brown spots, the 

 largest and deepest colored of which are 

 situated, one nearly back of the tip of the 

 auxiliary vein, one on theanteriorcross-vein, 

 and the third at the tip of the second vein. 

 Length 1 1 mm. 



Two specimens, Rio de Janeiro, 

 H. H. .Smith, Nov. This description 

 does not fuUv agree with the original by 

 Macquart, nevertheless I have but little 

 doubt of the determination. Macquart 

 says: -'Thorax noiratre. pointille de 

 blanchfitre ; deux bandes jaunatres, in- 

 terrompues ; flancs a bande testacee," 

 etc., atul tlescribes the abdomen as 

 siinply " noinltre." He represents the 

 front in his figure as having long bristles, 

 which it is needless to say do not exist. 

 I feel equally confident that R. piiiicti- 

 pe7t?tis Rondani is the same species. 



Rondani also describes another spe- 

 cies as R. similis. which he thought 

 might be a variety of his R. pmictipen- 

 //is, in which opinion I fiillv agree. 



