468 [June 



a line on the posterior pair beneath, black ; tarsi tinged with ferrugi- 

 nous ; tarsal claws blackish ; anterior tarsi ciliated with long dull fer- 

 ruginous setae. Abdomen faintly iridescent ; first segment with a broad 

 greenish-yellow band across the middle, narrowed and interrupted in 

 the middle in the large specimen ; second segment with a broad band 

 at base, undulate posteriorly, and enclosing on each side of the disk, a 

 transverse black spot; third segment with a broad band, very deeply 

 and squarely emarginate on each side of the middle anteriorly; fourth 

 and fifth segments each with a narrower biundate band ; apical segment 

 entirely black and subrugose; venter entirely black except a greenish- 

 yellow spot on each side of the second, third and sometimes the fourth 

 segments, smaller on the third and fourth segments. The small speci- 

 men has the markings of the abdomen more greenish than those of the 

 larger one. Length 7 — 9 lines; expanse of wings 1(M — 14s lines. 



Two specimens. Readily distinguished from B. fasciata, Fabr., by 

 the markings of the thorax, and by the two black spots on the second 

 dorsal segment of the abdomen. 



This species is no doubt the one mentioned by Say as a variety of 

 B. fasciata Fabr. (Bost. Journ. i, p. 367), from which, however, it is 

 certainly distinct. It occurs also in Illinois. 



Genus MONEDULA, Latr. 

 1. Monedula emarginata, n. sp. 



Black; orbits, clypeus, labrum, posterior margin of prothorax, tubercles, 

 two oblique lines on scutellum, and emarginate bands on abdomen, yellowish- 

 white or pale greenish-yellow ; most of legs yellow ; wings dusky hyaline. 



Female. — Black, shining; head and thorax more or less clothed with 

 a tine hoary pubescence, tinged with yellowish on the vertex ; broad 

 frontal orbits suddenly abbreviated before reaching the summit, more 

 or less broad entire posterior orbits, a small spot just beneath the inser- 

 tion of the antennas, clypeus, labrum, mandibles, except tips, and scape 

 of antennas beneath, yellow or yellowish-white; the mandibles are some- 

 times piceous, and testaceous in the middle. Thorax : a more or less 

 broad, interrupted line on the posterior margin of the prothorax, some- 

 times almost confluent, tubercles, tegulae in front, two oblique lines on 

 scutellum, sometimes large and nearly confluent, and sometimes much 

 reduced and obsolete, yellowish-white or pale greenish-yellow ; some- 

 times, but rarely, there is a line of the same color over the tegulas and 

 another on the postscutellum ; metathorax pubescent, generally imma- 

 culate, but in one specimen there is an oblique line on each side above, 

 and a spot on each posterior angle. Wings hyaline slightly tinged 

 with dusky ; nervures fuscous. Legs yellow ; coxse, trochanters, the 



