TRYPETIDAE. 99 



15. T. Tillosa ROB. DESV. (Ibid. Prionella.) 



This species, the antennal bristle of which is hairy, has the body, 

 the front, the legs and the antennas yellow ; the back of the thorax 

 shows interrupted, shining black lines ; two transverse whitish 

 lines on the abdomen, the last segment of which is black ; wings 

 hyaline with four flavescent fasciae. 



Patria like the preceding. 



16. T. asteris HARRIS. (Treatise, etc., 2d edit. p. 498, 3d edit. p. 620.) 

 Long. corp. 0.2. 



Of a light yellowish-brown color, with paler legs ; wings broad, 

 rounded at the tip and clouded with brown in large spots, forming 

 three wide, irregular bands across them. (New England; pro- 

 duces swellings, as large as a walnut on the stems of the native 

 asters or starworts.) 



APPENDIX III. 



The manuscript of Mr. Loew was already prepared, when he received 

 from me four Trypetse not described in it. The first is a species of Say ; 

 the three others have been published by Mr. Loew since, in the Berliner 

 Entomoloyische Zeitsclirift. I reproduce here the description of T. obliqua 

 Say, as well as those of the other species, the latter in English translation, 

 as they appeared in Latin. 0. S. 



17. T. obliqua SAY. ^ and 9 . (Say, Journ. Acad. Phil. VI, p. 

 186.) Flava, alse fasciis obliquis flavis, fusco-marginatis, abdomen 

 seriebus duabus punctorum nigroruin. 



Yellowish, wings with oblique yellow bands, margined with brown ; abdo- 

 men with two series of black dots. Long. corp. 0.1 0.13. 



Body pale brownish-yellow ; wings with a definite yellowish 

 costal border, and three very oblique bands proceeding from the 

 costal border ; basal band terminating on the posterior border 

 midway between the fifth and sixth longitudinal veins ; middle 

 band terminating at the tip of the fifth vein ; outer band termi- 

 nating at the tip of the fourth vein ; yellcw margin of the costal 

 border ending a little beyond the third vein ; the bands are edged 

 exteriorly with a black line, which is dilated into a spot at tip ; 

 thorax with two black dots behind ; scutel yellow, pale ; abdomen 

 with a series of black dots each side. The wing-bands arc parallel 

 and equidistant, the intervals are as broad as the bands. 



