NO. II NEOTROPICAL DICTYOPHARIDAE FENNAH 9 



TAOSA INEXACTA (Walker) 



Dictyophara incxacta Walker, 1858, Insecta Saundersiana, p. 38. 

 Taosa paraherhida Muir, 1931, Proc. Hawaiian Ent. Soc, vol. 7, p. 474, pi. X, 

 fig. 9. 



Walker's holotype agrees perfectly with a specimen of Taosa 

 paraherhida Muir in the British Museum bearing Muir's paratype 

 label. In view of the fact that the holotype of Muir's species is un- 

 traceable, this specimen becomes the residual type. T. inexacta 

 (Walker) is not synonymous with T. herbida (Walker) as given by 

 Distant, and it is noteworthy that the characteristic difference in the 

 coloration of the frons between these species is clearly stated in 

 Walker's original descriptions. 



TAOSA SCRIPTIVENTRIS (Walker) 



Plate 2, figures 43, 44 



Cladodiptera scripiiventris Walker, 1858, List Horn. Suppl., p. 76. 



Taosa pseudoscriptiventris Muir, 1931, Proc. Hawaiian Ent. Soc, vol. 7, p. 472. 



The type of T. pseudoscriptiventris Muir is not distinguishable 

 from the holotype of scriptiventris (Walker) except by a darker suf- 

 fusion overlying the sutural line, and in its slightly larger size (Muir's 

 type: tegmen, lo mm.; Walker's type: tegmen, 9 mm.). The two 

 types are female and the genitalia are externally indistinguishable. 

 Specimens in the Biologia Centrali-Americana series of scriptiventris 

 (Walker) are larger than either of the preceding but are closely 

 similar, though with rather more extensive brown suffusion on the 

 membrane. These are considered to be geographical representatives 

 of the South American type. 



TAOSA VITRATA (Fabricius) 

 Plate i, figures 19, 20 

 Plata vitrata Fabricius, 1803, Syst. Rhyng., p. 48. 



Dr. S. L. Tuxen, of the Universitetets Zoologiske Museum, Copen- 

 hagen, has kindly prepared drawings from the Fabrician type (re- 

 produced herewith) and has compared with it drawings of the type of 

 Cladodiptera viridifrons Walker. The two species are evidently dis- 

 tinct, and the synonymy created by Distant (Biol. Centr.-Amer., 

 Rhynch. Hom., vol. i, p. 41), followed by Melichar (1912) and 

 Fennah (1945), is erroneous. 



