No. 22.] HYMENOPTERA OF CONNECTICUT. 315 



greater part of lower half of mesopleurse, nearly all of meso- 

 sternum, scutel, spot on metapleurae, and the coxae of fore and 

 mid legs, yellow ; femora and tibiae of fore and mid legs reddish 

 stramineous, the tarsi of fore and mid legs brownish ; hind legs 

 almost entirely reddish; first segment of abdomen black above, 

 except for an apical yellowish margin; second dorsal abdominal 

 segment black, barring the apical and basal margins, which are 

 yellowish ; rest of dorsum of abdomen more or less reddish stra- 

 mineous, with an addition of dusky spots or stains in some cases. 



Variations occur in the extent of the yellow on the thorax, in 

 the extent of black on the second dorsal abdominal segment, and 

 in the pale color of the dorsum of the abdomen being reddish in 

 some individuals, but the pattern is always essentially as in the 

 type. 



Type locality: New Haven, 19 July, 1905 (B. H. W.), 6 July, 

 1904, 4 July, 1905 (H. L. V.) ; also from Branford, 28 July, 1905 

 (H. L-V.). 



L. (AUoplasta) varia (Cresson). 



Colebrook, 21 July, 1905 (H. L. V.). 



L. (A.) americana (Cresson). Howard, Insect Book, PI. x, 

 Fig. 3. 



°L. (A.) tegularis (Cresson). 



°L. (A.) pulchella (Cresson). 



°L. (A.) pleuralis (Cresson). 



°L. (A.) insita (Cresson). 



°L. (Harrimaniella) relativa (Viereck). 



L. frigida (Cresson). 



Yalesville, 19 October, 1903 (H. L. V.). Parasitic on a spe- 

 cies of sawfly (Nematus). 

 °L. agilis (Cresson). 



Arenetra Holmgren. 

 Mostly black; wings hyaline; pubescence rather long and 

 dense ; head and thorax with their pubescence whitish. 



Key to Species. 



Tegulae and hind femora black nigrita 



Tegulae yellowish white ventralis 



