No. 22.] HYMENOPTERA OF CONNECTICUT. lOI 



*M. trisyllaba (Norton). Howard, Insect Book, PI. xiii, Fig. 

 8. Larva feeds on elder. Connecticut (E. N.) ; New Haven, 

 27 June, 1902 (E. J. S. M.). 



M. goniphora (Say). Connecticut (E. N.) ; Hamden, i 

 June, 1911 (A. B. C). 



*M. intermedia (Norton). Connecticut (E. N.). 

 M. formosa (Klug). Howard, Insect Book, PI. xiv. Fig. 25. 

 Connecticut (E. N.) ; New Haven, 8 June, 1904 (W. E. B.), 4 

 July, 1905 (H. L. v.), 20 July, 1904 (B. H. W.), 24 June, 1902 

 (E. J. S. M.). 



°M. cesta (Say). 



M. succincta Cresson. Stonington, 8, 14, June, 1906 (W. 

 E. B.) ; New Haven, 25 June, 1907 (B. H. W.), 6 June, 1908 

 (W. E. B.), 26 May, 191 1 (A. B. C). 



°M. melanopleura MacGillivray. 



*M. fascialis Norton. Farmington (E. N.) ; New Haven, 4 

 July, 1905 (H. L. v.). 



*M. varia (Norton). Farmington (E. N.). 



AUantus Jurine. 



Key to Species. 

 I. Female: posterior femora pale at base and black at apex, or 

 black above and pale below; body black, with clypeus, labrum, 

 mandibles, line on lower half of postgenae adjacent to 

 eyes, two basal segments of antennae, collar, tegul^, meso- 

 pleurae broadly, scutellum, a spot above posterior coxae, 

 legs beyond coxae (except middle femora at apex above, 

 apical half of posterior femora, and a ring on apex of 

 posterior tibiae), basal plates, abdominal segments four, seven, 

 and eight, and a spot on each side of fifth and sixth, yellow. 

 Male differs in having only basal segment of antennae, genae, 

 lower half of postgenae, mesopleurae entirely, sides of prono- 

 tum, metapleurae, legs entirely except a black line above on 

 middle and hind legs and hind tarsi, and abdomen beyond basal 



plates, white or yellow. Length 12 mm basilaris 



Female: posterior femora wholly black or rufous; body black, 

 with clypeus, labrum, mandibles, genas, lower half of postgenae, 

 spot on mesopleurae, sometimes wanting, scutellum, tro- 

 chanters, tibiae, becoming rufous at apex, tarsi, basal plates, 

 and abdominal segments five to seven with a short band 



