DESCRIPTION OP THE SPECIES. 219 



dark ring becomes paler round those drops which are more dis- 

 tant from the anterior margin. The convex spot in the first 

 posterior cell is rather large ; it contains a comparatively small 

 rounded-ovate deep black dot. Moreover, in the submarginal 

 cell, in the first and second posterior cells, and in the discal cell, 

 differently colored spots (one in each) may be noticed, which, at 

 an oblique view, assume a dark coloring. In the third posterior 

 cell, in the posterior angle of the wing, and on the alula, there is 

 a number of hyaline drops, among which only those placed 

 immediately behind the fifth vein show a trace of a brown border. 

 The double costal spine is strong and comparatively long, the 

 small crossvein is placed upon the last third of the discal cell ; 

 the posterior crossvein is steep, but distinctly sinuate ; the third 

 longitudinal vein is not bristly. 



Hab. Savannah (Wiedemann) j Carolina (Macquart) ; Texas 

 (Belfrage). 



Observation. — T. culta is closely allied to the European T. 

 pupillata Fall, and strigilata Lw., and this relationship is suffi- 

 cient to justify its location in the genus Carpotricha, formed by 

 me for the reception of these species, as well as of T. guttularis 

 Meig. However, in consequence of this addition, the definition 

 of the genus, as given by me in the Monograph of the European 

 Trypetse, will have to be somewhat modified. In T. culta the 

 scutellum is less convex, and, although smooth, it is not polished ; 

 the tip of the abdomen is not shining. The nature of the pile 

 and the pattern of the picture of the wings, the structure of the 

 head, and the arrangement of the frontal bristles furnish sufficient 

 data for the modification alluded to. 



32. T. solidaginis Fitch. % £. (Tab. X, f. 16.)— Sordide ferru- 

 ginea, capite pedibusque luteis ; frons latissima; scutelli valde convexi 

 setse duse ; alae fusco-reticulatse, apice incisurisque tribus, una marginis 

 antici duabusque postici, hyalinis et parce fusco-maculatis. 



Of a dingy ferruginous-red ; head and feet clay-yellowish ; front exceed- 

 ingly broad ; scutellum very convex, with two bristles ; wings reticu- 

 late with brown; the tip and three indentations, one on the anterior 

 and two on the posterior margin, hyaline, sparsely dotted with brown. 

 Long. corp. % 0.24—0.25, J cum terebra 0.26—0-28; long. al. 0.25— 

 0.26. 



