DESCRIPTION OF THE SPECIES. 313 



brown color emits five brown rays of almost equal length. The 

 first of these rays ends a little before the middle of the distance 

 between the tips of the second and third veins; the two next ones, 

 which are a little expanded at the tip, lie on the ends of the third 

 and fourth veins, the last two in the second posterior cell; the 

 last of these rays, in the vicinity of its origin, is not quite well 

 separated from the remaining brownish-black picture. The hya- 

 line drops are rather large, but few in number; there are two 

 between the third and fourth longitudinal veins, the first before 

 the small crossvein, the second less far beyond it; the discal cell 

 also contains but two drops, placed under the small crossvein and 

 nearer to the posterior side of the cell ; the third posterior cell 

 has a drop at its extreme basis and five considerable ones in the 

 posterior angle of the wing, which, however, are less conspicuous, 

 because the dark coloring in that region is more faded. The 

 distance of the first and second longitudinal veins from the margin 

 is a little larger than usual; the second and third veins are 

 strongly diverging towards the end ; a weaker divergency exists 

 between the third and fourth veins; the two crossveins are per- 

 pendicular and straight; the small crossvein is almost twice as 

 far from the proximal end of the discal cell as from the distal end. 

 In my first description of this species I said that the third vein 

 was not beset with bristles ; a more attentive examination of the 

 specimen, however, revealed to me, on one of the wings, a few very 

 short bristles, which are either rubbed off on the other wing, or 

 else in a situation which does not allow their close scrutiny ; the 

 first posterior cell does not contain a conspicuous concavity, like 

 that in T. bella; and the corresponding spot is not darker than 

 its surroundings. 



Hab. Mexico (collect, v. Winthem). 



Observation 1. — The systematic position of T. timida is exactly 

 the same as that of T. /estiva and bella. 



Observation 2. — The next relative of T. timida is a Brazilian 

 species, which can be very easily mistaken for it; and in order to 

 prevent this confusion, I let its description follow here: — 



T. obscuriventris n. sp. 9- (Tab. X, f. 26.) — Ex luteo cinerea, 

 capite pedibusqne lutescentibus, abdomine ex piceo uigro et nitido, 

 terebra concolore, tribus ultimis abdominis seguientis siuiul suinptis 

 requali; setae suutelli quatuor; alarum pictura nigra, in apice pulchre 



