No. 22.] HYMENOPTERA OF CONNECTICUT. 167 



broad as long; transverse part of Ma 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 Ma given off near mid- 



dle of cell R* 12 



Front wings with transverse part of Ma given off nearer to 

 vein Rs than to the middle of cell Ri; 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« 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 MacGillivray. 



