DESCRIPTION OF THE SPECIES. 223 



To my former description of this species, I have to add two 

 observations. First, it contains a misprint, as the third line 

 should read "bristle very thin," and not "bristle very short." 

 Secondly, the examination of well-preserved specimens renders it 

 doubtless, that the dark spots on the thoracic dorsum, mentioned 

 in the description, were produced by the immersion of the speci- 

 mens in spirits, and that the better preserved specimens do not 

 show them. 



"When I described T. unicolor, I took it for distinct from 

 Dacus fraterculus Wied., as Wiedemann describes the bristles 

 and hairs on head and thorax as black, and says that the large 

 triangular hyaline spot at the end of the posterior margin is con- 

 nected with the S-shaped hyaline band. The comparison of 

 Wiedemann's original specimen, however, showed that my T. 

 unicolor is nothing else but Dacus fraterculus Wied. By the 

 terms hairs and bristles Wiedemann understood only the stronger 

 and weaker bristles ; the remaining short pile on the head and 

 the thorax of his specimen is entirely similar to the yellowish 

 pubescence of T. unicolor. The connection between the posterior 

 hyaline spot with the S-shaped hyaline band, which he mentions, 

 is only an apparent one, as the rivulet separating both is not 

 interrupted at the tip of the triangular hyaline spot, but only very 

 much faded. 



Hab. Brazil, Peru, New Granada, Cuba. 



Observation. — The T&phritis obliqua Macq. Dipt. Exot. II, 3, 

 p. 225, Tab. XXX, f. 11, undoubtedly belongs in the relation- 

 ship of the two preceding species; it differs, however, in the pic- 

 ture of the wings too much to be identified with any of them. 



5. T. ludens n. sp. %. (Tab. XI, f. 19.) — Lntea, thoracis vittis et 

 scutello laetius flavis, ultimo abdominis segmento duobus praecedentibus 

 simul sumtis multo longiore, alarum rivulis lutescentibus, cellu.la basali 

 secunda et cellulae discoidalis basi hyalinis, apice venae longitudalis 

 quartae recurvo. 



Clay-yellow, longitudinal stripes of thorax and scutellum of a purer yel- 

 low; the last abdominal segment much longer than the two preceding 

 ones taken together; wings with rather clay-yellow rivulets, the second 

 basal cell and the root of the anal cell hyaline; the end of the fourth 

 longitudinal vein curved forward. Long. corp. 0.30; long. al. 0.31 — 

 0.32. 



Pale clay-yellow. Front of a somewhat more bright yellow, 



