Dasineura collinsoniae

Neolasioptera triadenii

Neolasioptera angelicae

Neolasioptera boehmeriae

Neolasioptera lycopi

Green, onion-shaped, pubescent, succulent, thick-walled, with a narrow larval chamber inside containing a single larva. Length, 4-7mm.; width, 3.50-5 mm.

Gall. -- Green, globular or somewhat elongate swellings on the stalk of marsh St. John's wort (Triadenum[now Hypericum] virginicum). Length, 6-10 mm.; width, 5-5.50 mm.

Gall. -- Elongate swellings of the stalk of the pubescent angelica (Angelica villosa [now venenosa]). Each gall contains numerous larvae, which are in a large chamber filled with pith of the plant. Sometimes as many as four swellings are on a single stalk. Length, 25 to 55 mm.; width, 8 to 14 mm. The larvae hibernate in the gall. 

Gall. -- An elongate, fusiform swelling of the stalk of false nettle (Boehmeria cylindrica). Inside is an elongate, narrow chamber, inhabited by a single larva. Length, 12 mm.; width, 6 mm.

Gall. -- Rounded or globular, green swellings on the stalks of bugleweed (Lycopus virginicus). Inside is an elongated chamber containing a single larva. Length, 10 mm.; width, 4 mm.

ON SOME APPARENTLY NEW CECIDOMYIIDAE