384 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



B. (Xanthoteras) forticornis Walsh. Oak Fig Gall. 



Female: length 2-2.5 mm.; mostly rufo-sanguineous ; head 

 nearly twice as wide as long and twice as wide as the thorax, 

 scarcely polished but glabrous ; antennae brownish black, opaque, 

 nearly as long as the body, with all the joints except the first, 

 third, fourth and fourteenth as broad as long; 14- jointed, the 

 apical joint half as long again as the penultimate, and the first and 

 third tapering to a mere film at the base ; thorax narrow, glabrous, 

 a little polished, with only two rather coarse mesonotal striae 

 converging but slightly at the scutel, which latter is opaque, longi- 

 tudinally semioval, and has a suture before it which is deeply 

 impressed, but without any foveae; legs dull rufous or reddish 

 brown, the hind femora and tibiae and the tips of all the tarsi 

 generally brownish ; wings reduced to an elongate triangular gray 

 scale and extending only one-third of the way along the second 

 abdominal segment; abdomen black, highly polished, the second 

 segment occupying about one-half of its dorsal or one-third of its 

 lateral length, the first joint very small, viewed laterally appar- 

 ently a little longer than wide, the dorsal edge of the second joint 

 describing a circular arc of about 25°; the ventral valve very 

 hairy, yellowish subhyaline, its tip at an angle of about 80°, the 

 dorsal valve large and hairy ; sheaths of the ovipositor generally 

 exserted and directed upwards and backwards, tip of the oviposi- 

 tor exserted. 



Manchester, 24 September, 1906, New Haven, 26 January, 

 1911 (B. H. W.) ; Mystic, 3 March, 1915 (I. W. Davis). 

 Neuroterus Hartig. 

 *N. batatus Bassett. Oak Potato Gall. 



Female : length 2 mm. ; mostly black and shining ; vertex 

 smooth ; face covered with a fine thin pubescence ; palpi clear and 

 brown; antennae 13-jointed, first, second and third joints pale 

 yellow, the following joints pale, semitranslucent brown; thorax 

 black and shining but under a strong magnification showing a net- 

 work of fine lines ; parapsidal grooves and striae obsolete ; scutel 

 smooth and polished, a few scattered hairs on its posterior por- 

 tion, basal pits wanting; scutel separated from the mesothorax 

 by a deep shining groove ; legs with their coxae clear yellowish 

 brown, their femora in the middle dark brown or black, as are 

 also the tibiae of the posterior pair, remaining portions except the 



