No. 22.] HYMENOPTERA OF CONNECTICUT. 35 



ocelli; median lobe at base, lateral lobes at middle, base of 

 scutellum, metathorax in part, and a narrow transverse 

 band on the base of each abdominal segment, black. 



Length 14 mm discolor 



6. Large yellow spot laterad of the bases of antennae smooth 

 without punctures; clypeus and labrum yellow, produced 

 at middle into a distinct spearhead-shaped projection, 

 rarely punctate and if so bearing white setae; head and 

 thorax with the usual yellow spots; legs all yellow or 

 yellowish-rufous with the femora black above; abdomen 

 almost entirely rufous or with a narrow black line on the 

 caudal margin of the segments, in some specimens the 

 black bands expanded onto the cephalic part of the next 

 segment until some of the segments are almost entirely 



black. Length 13 mm luteomaculata 



Large yellow spot laterad of the bases of antennae completely 

 covered with punctures, each puncture bearing a black 

 seta; labrum and clypeus yellow, produced at middle into 

 a triangular-shaped projection and distinctly punctate, 

 the punctures bearing black setae; head and thorax wiih 

 the usual yellow spots; legs yellow or yellowish- rufous 

 with all the femora black above and all with more or less 

 black beneath; abdomen black above with a narrow yellow 

 lateral margin. Length 14 mm albomarginata 



°I. brunniceps (Cresson). Lyda brunniceps Cresson. 

 °I. maculiventris (Norton). Lyda maculiventris Norton. 

 I. ochrocera (Norton). Lyda ochrocera Norton. Walling- 

 ford, I June, 1910 (D. J. Caffrey), 13 July, 191 1 (J. K. Lewis) ; 

 Stonington, 15 June, 1908 (W. E. B.). 



I. angulata MacGillivray. Manchester, 20 May, 1910 (A. 

 B. C.) ; Wallingford, 7 July, 191 1 (J. K. Lewis). 

 °I. discolor (Cresson). 



*I. luteomaculata (Cresson). Lyda luteomaculata Cresson. 

 Torrington (R. Hochstein). 



*I. albomarginata (Cresson). Lyda albomarginata Cresson. 

 New Haven, 24 June, 1905 (H. L. V.). 



Cephaleia Panzer. 



Key to Species. 



I. Pleurae entirely black 2 



Pleurae with a prominent oblique pale mark 3 



