340 NORTH AMERICAN TRYPETINA. 



APPENDIX II. 



The descriptions of North American species of Trypeta, pub- 

 lished by previous authors, but not identified in the foregoing 

 Monograph, are reprinted verbatim in the Monographs, etc., 

 Yol. I, p. 94. The following five Californian species of Mr. 

 Thomson, were published since the issue of that volume (T. lio- 

 gaster Thorns, is left among them, as its synonymy with T. 

 fratria Lw. is not quite certain). 



Thomson, Eugenies Resa, etc., Zoologi, VI, p. 578. 

 Genus TRYPETA. 



A. Alse cubiti ramo submarginali setuloso, cellula anali postice angulo 

 infero breviter sed acute producta, abscissa costali 2a spinula fere 

 nulla. Frons serie laterali 5-setosa. Thorax setarum dorsalium 

 pari pone medio sito. Scutellum 4-setosum. Proboscis brevis. 



251. Trypeta liogaster. — Ferruginea nitida, abdomine glabro ; alis 

 albis, fusco-fiexuoso-variegatis; postscutello macula magna didyma 

 nigra. 9 • Long. 5 mill. 



P atria. California. 



T. Onopordi colore et alarum pictura simillima, abdomine 

 glabro mox distincta. Caput rotundum, fere globosura, ferrugi- 

 neum, occipite haud excavato ; fronte subopaca, subtilissime 

 puberula, serie laterali 5-setosa, setis 2 posterioribus magis ab 

 oculis remotis ; epistomate haud brevi, foveis antennalibus minus 

 determinatis, divergentibus, genis angustis, inferne paullo lati- 

 oribus; peristomio magno, rotundo, utrinque medio seta una 

 validiore nigra instructo, proboscide brevi, capitulo crasso ; ocu- 

 lis nudis, fere ovalibus, inferne sat longe descendentibus, orbita 

 frontali parallela, faciali minus divergente. Antennae subdeflexae, 

 basi vix distantes, articulo 3o ovali, apice haud mucronato, 



