ON THE N. A. SPECIES HITHERTO RECORDED. 59 



21. fulvifrons Macq. I hardly conceive how Macquart could locate among 



Urophora a species which is an Ortalis, and nothing else but Ortalis 

 aenea Wied. 



22. inermis R. Desv., published by the author as Strauzia inermis, is 



Tryp. longipennis Wied. > 



23. interrupta Macq. seems to be an Ortalis related to Herina rufitarsis 



Macq., if it is not a mere variety of this species, so variable in the 

 color of its body ; moreover, it is so vaguely described that it is not 

 possible to say anything with certainty about it. 



24. latipennis Macq., described by Macquart under the name of Platy- 



stoma latipennis; it is, however, certainly a Trypeta, and I hope 

 not to be mistaken in identifying it with Tryp. sparsa Wied. ; the 

 representation of the head is certainly nothing but the invention of 

 the draughtsman, or a foreign head had been glued to the speci- 

 men. 



25. lichtensteinii Wied. I have seen this beautiful species about six- 



teen years ago, and made a sketch of the picture of the wing, which 

 I give in Tab. II, fig. 25. The bristle of the antenna is thickened 

 at its base in a rather striking manner. 



26. longipennis Wied. will be more accurately described in the sequel. 



The name of it is ascertained from the inspection of the originals. 

 It is surprising that Wiedemann does not mention the thickening 

 of the frontal bristles of the male, though the males in his collection 

 show it. Perhaps he had specimens enough to satisfy himself that 

 this peculiarity is not constant. 



27. marginepunctata Macq. is unknown to me. 



28. melliginis Fitch belongs to the Ortalidse, and is Herina rufitarsis 



Macq. 



29. mevarna Walk., a Trypeta which has the apex of the wings only 



reticulated, and is allied probably to the European Tryp. stellata 

 Fiissl. Among the below described species Trypeta Solaris may 

 have the greatest resemblance to it. 



30. mexicana Wied. seems to be a Trypeta; the original perhaps exists 



in the Berlin Museum. It is none of the species known to me. 



31. narytia Walk. I believe it also to be a Trypeta; it is likewise not 



among my species. 



32. novaeboracensis Fitch is the same species as Tryp. sparsa Wied. 



and caliptera Say. 



33. nigriventris Macq. probably a Trypeta of the group of Tryp. rotundi- 



ventris Fall. 



34. obliqua Macq., a Trypeta, which seems to be nearly allied to Tryp. 



suspensa from Cuba and Tryp. unicolor from New Granada, but differs 

 from both by its small transverse vein having an inclined position, 

 and the first hyaline band running uninterruptedly from the border 

 of the wing to the anterior of the two small basal cells, whereas in 

 those species it is interrupted not far from the costal border. 



