DESCRIPTION OF THE SPECIES. 311 



ends of the third and fourtli veins ; the last two cross the second posterior 

 cell ; the last of all is connected with the remaining brownish-black 

 coloring by a narrow brownish-black bridge and sometimes interrupted at 

 the basis ; upon the anterior side of the fourth vein there are only two 

 hyaline drops, the one below the stigma, the other between both cross- 

 veins ; in the third posterior cell there are six hyaline drops, the one of 

 which is at its extreme basis and the others upon its latter half; some 

 of tlie latter drops are sometimes coalescent ; in the posterior angle tliere 

 are, moreover, four or five hyaline drops. The small crossvein is almost 

 perpendicular and is nearly opposite the last third of the discal cell; the 

 posterior crossvein likewise is rather perpendicular ; the third longitudi- 

 nal vein is distinctly bristly. 



Hub. Brazil (collection v. Wiuthem). 



53. T. bella Lw. % J . (Tab. X, f. 23.)— Luteo-cinerea, capite, pedi- 

 bus, abdomineque flavis, hoc apicem versus nigricante ; setae scutelli 

 quatuor ; alarum pictura nigra, in margine antico et apice pulchre 

 radiata, prope marginem posticum paulo confertius, in disco rarissime 

 guttata, gutta cellulae posterioris pritnae plane nulla ; vena longitudinalis 

 tertia setosa. 



Yellowish-gray; head, feet, and abdomen yellow; the latter blackish 

 towards the end ; the black picture of the wings handsomely radiate on 

 the anterior margin and the apex ; in the vicinity of the posterior margin 

 with numerous drops, upon the middle of the wing with very few, in the 

 first posterior cell with none ; third longitudinal vein bristly. Long. 

 corp. £,0.12—0.13, 9 cum terebra 0.13— 0.15; long. al. 0.11— 0.12. 



Syn. Trypeta bella Loew, Monographs, etc., I, p. 88. Tab. II, f. 23. 



Hab. New York (Fitch) ; Washington (Osten-Sacken) ; Wis- 

 consin, etc. [Rather common everywhere in tlie U. S. — O. S.] 



Observation. — Closely related to T. festiva, and, as to its sys- 

 tematic location, the remarks appended to that species are also 

 applicable here. 



54. T. timida Lw. % . (Tab. X, f. 25.) — Lntea, metanoto pleurisque 

 ex-nigro fuscis, capite pedibusque flavis ; setae scutelli quatuor ; alarum 

 pictura nigra, in apice pulchre radiata, prope marginem posticum rare 

 et in disco rarissime guttata; gutta cellulae posterioris primae unica ; 

 vena longitudinalis tertia setulis paucis brevissimis instructa. 



Clay-yellow, metathorax and pleurae blackish-brown ; head and feet yel- 

 low ; four bristles upon the scutellum ; the black picture of the wings 

 is prettily radiated at the tip, in the vicinity of the posterior margin 

 sparsely, and upon the middle of the wing very sparsely guttate, in the 

 first posterior cell with a single drop; the third longitudinal vein is 



