TRYPETIDAE. 93 



towards the sides. Ovipositor broad, red on each side of the base, 

 the remainder gray, with the tip fuscous. Wings with a brown 

 band running over the basal transverse veins, but not attaining the 

 posterior border; and with a complete band before the middle 

 transverse vein, emitting another oblique band which crosses the 

 two transverse veins and runs to the posterior border. Tip of the 

 wing brown. The costal portion of the space, included by the 

 second band and the brown of the tip, is tinged with brown on 

 its basal half, whereas its apical half is yellow and spotted with 

 brown before a small hyaline margin of the brown apex ; one of 

 the brown spots in the yellow half reaches the third longitudinal 

 vein. 



Hob. Mexico. 



Observation. The number and size of the black spots on the 

 lateral border of the thorax is rather variable. In the female the 

 abdomen has alternately gray and black bands ; in the male only 

 the two last segments of the abdomen are shining black, with the 

 exception of the posterior borders. I am not sure whether this 

 species is a real Trypeta, several characters seeming to prove that 

 it belongs to Ortalis. Many years have elapsed since I have seen 

 it ; besides, at that time I was not quite certain about the true 

 limit between the Trypetidee and Ortalidce. 



3. T. comma WIED. (Auss. Zweifl. II, 478,4.) $>. (Tab. II, fig. 

 28.) 



Of a pale brick color ; thorax with yellowish hair ; wings fuscous, with a 

 limpid costal triangle, including a fuscous comma. Long. corp. 0.23. 



Antenna? of a light clay color, with the third joint very short. 

 Face of a very pale, front of a more saturated clay color. Thorax 

 with yellowish hair. Scutellum and pleura? brownish-red. Abdo- 

 men a little paler. Ovipositor polished, with the extremity of the 

 tip black. Wings fuscous, with numerous lighter little dots, grow- 

 ing almost hyaline towards the hind border. There is beyond the 

 middle of the costa a triangular limpid excision, including a central 

 fuscous comma, reaching from the costa to the first longitudinal 

 vein ; the tip of the wing is, in an almost imperceptible manner, 

 margined interruptedly with hyaline. Poisers yellow, with the 

 knob brown. Legs reddish-ochreous, tarsi paler. 



Hob. Kentucky. 



