No. 22.] HYMENOPTERA OF CONNECTICUT. 167 



broad as long; transverse part of M 2 received near its mid- 

 dle; wings infuscated; saw-guides broad, and broadly- 

 rounded at apex. Length 3 mm minuta 



11. Front wings with transverse part of M 2 given off near mid- 



dle of cell R< 12 



Front wings with transverse part of M2 given off nearer to 

 vein R 5 than to the middle of cell R 4 ; body black, with 

 clypeus, labrum, and mandibles, white, infuscated with 

 piceous; legs, except tips of tarsi, and bases of wings, 

 greenish white or luteous; head and thorax covered with 

 fine, white pubescence; cell R 4 distinctly longer than 

 broad; wings usually more or less infuscated; saw-guides 

 broadly rounded at apex. Length 4 mm saginata 



12. Wings infuscated on basal half; front wings with cell R 



about as broad as long; head dilated behind the eyes; body 

 black, with clypeus and labrum more or less white; legs 

 except more or less of the tarsi, and basal half of tergum 

 of abdomen more or less, white; head and thorax covered 

 with fine, white pubescence; saw-guides very broad and 



squarely truncated at apex. Length 4 mm maculata 



Wings wholly hyaline; front wings with cell R< much longer 

 than broad; body black, with labrum, mandibles, legs, and 

 bases of wings, white; head and thorax covered with short, 

 white pubescence; head not dilated behind the eyes. 

 Length 4 mm marina 



A. media MacGillivray. 

 A. biclinia Konow. 

 A. minima MacGillivray. 



A. maxima MacGillivray. Larva feeds on Quercus alba. 

 A. dorsalis Say. Larva feeds on black oak. Connecticut 

 (E.N.). 



A. maura MacGillivray. New Haven, 6 July, 1904 (H. 

 L.V.). 



A. mellina MacGillivray. 

 A. mixta MacGillivray. 

 A. munda MacGillivray. 

 A. minuta MacGillivray. 



A. saginata Provancher. Yalesville, 17 June, 1907 (B. H. 

 W.) ; Hamden, 14 June, 191 1 (W. E. B.). 



A. maculata MacGillivray. 

 A. marina MacGillivrav. 



