29 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



scape beneath in the male, yellow; legs reddish, except the hind 

 tarsi and apex of their femora and tibiae, which are dusky, the 

 latter in addition with more or less white on the basal half, 

 especially in the female; areolet petiolate, oblique. 



Spanotecnus Foerster. 

 Key to Species. 



1. Head, thorax, and usually base of abdomen, coarsely punc- 



tate 2 



Head, thorax, and abdomen distinctly shagreened; body uni- 

 formly whitish yellow, or with dusky patches. Length 

 5 mm. (male and female) discolor 



2. Thorax and most of rest of body dusky; scutel and face 



mostly yellow obscurellus 



Body, including thorax, almost or entirely uniformly reddish 

 brown or brownish stramineous concolor 



*S. obscurellus Davis. 

 Female : length 6 mm. ; propodeum and legs reddish. 



S. concolor Cresson. 

 Female and male : length 7-9 mm. 



New Haven, 26 May, 1904 (H. L. V.) ; 17, 24 May, 1905 (W. 

 E. B., B. H. W.) ; Mt. Carmel, 24 May, 1906 (B. H. W.). 

 S. discolor Cresson. 



Mesoleius Holmgren. 



Key to Species. 



1. Abdomen black or blackish; scutel and apical margin of 



dorsal abdominal segments more or less white; pleura 



reddish or white 2 



Most of thorax and abdomen reddish, scutel yellow. .. .scapularis 



2. Hind tibiae white at base or with a distinct white annulus; 



mesonotum black; hind coxae and femora reddish 



submarginatus 

 Hind tibiae without a distinct annulus; face mostly black; 

 scutel with lateral white stripes mellipes 



*M. scapularis Cresson. 

 Female and male: length 8 mm.; head black; legs reddish, 

 except trochanters and fore and mid coxse, which are yellow ; 

 areolet usually absent. 



M. submarginatus Cresson. 



Female and male : length 5-8 mm. ; head black. 



