60 DIPTERA OF NORTH AMERICA. 



35. obliqua Say seems to be related to the European Tryp, Arctii Deg. 

 and the below described Tryp. palposa from North Wisconsin ; the 

 latter has on its abdomen four rows of black spots, whereas Tryp. 

 obliqua Say has only two. 



3C. ocresia Walk, apparently related to Tryp. unicolor from New Granada, 

 but it cannot be identified with this or any other species known to 

 me. The description given by Walker is very vague. 



37. picta Fabr. a Camptoneura and consequently an Ortalideous species. 



38. quadrifasciata Macq. I believe it to be a Try pet a which I do not 



possess. 



39. quadrifasciata Walk, belongs to the Ortalidx, and is Herina rufitarsU 



Macq. 



40. quadrivittata Macq. belongs to the Ortalidae. 



41. scutellaris Wied. I have seen the typical individuals of this beau- 



tiful species in the Berlin Museum sixteen years ago. If I recollect 

 right, there were bright bands of a more black than brown color on 

 the two last segments only of the abdomen in the male, but on all 

 segments in the female. I was surprised to see in the female the 

 markings of the wings (Tab. II, fig. 27) more extended than in the 

 male (Tab. II, fig. 26). 



42. scutellata Wied. a Trypeta quite unknown to me. 



43. septenaria Harr. must be omitted as being undescribed. 



44. solidaginis Fitch has been amply described in the sequel. 



45. sparsa Wied. I give a detailed description of it. 



46'. tabellaria Fitch, not among the Trypetae known to me, nor does it 

 seem to belong to them, but is probably an Ortalida. 



47. tribulis Ilarr. not described and therefore to be omitted. 



48. trimaculata Macq. is the same variety of Tryp. longipennis Wied. 



which Walker has described under the name of Tryp. cornifera. 



49. trifasciata Ilarr. must be omitted as being undescribed. 



50. villosa R. Desv. may be a Trypeta, but is so badly described that 



there is scarcely a possibility to recognize it. 



The result of the remarks given about the enumerated 50 species 

 will consequently be as follows : — 



1. Five species must be omitted, because they have never been 



described: albiscutellata Harr., cinclipes Harr., septenaria 

 Harr, tribulis Harr., and trifasciata Harr. 



2. Fourteen species must be blotted out as identical with species 



previously described: arcuata Walk., armata R. Desv., 

 caliptera Say, cornigera Walk., cornifera Walk., fimbriata 

 Macq., flavonotata Macq., inermis R. Desv., latipennis 

 Macq., marrjinepunctata Macq., melliginis Fitch, novcebora- 

 censis Fitch, quadrifasciata Walk., and trimaculata Macq. 



