No. 22.] HYMENOPTERA OF CONNECTICUT. 1 59 



P. secundus Rohwer. 



Lateral fovese distinctly separated from the antennal fovese; 

 ocellar furrow straight; median fovea small, circular, and well 

 defined; postocellar area broader at the occiput; antennae with 

 the first segment slightly shorter than the second, the second and 

 third equal; saw-guides like those of the preceding species; stig- 

 ma about twice as long as its greatest width, broader and some- 

 what angled at base; body black, with the abdomen piceous and 

 all the legs pale yellow; wings dusky, the veins dark brown. 

 Length 3 mm. 



Metallus Forbes. 

 Key to Species. 



1. Sligma three times as long as broad; front not punctate around 



base of antennae; body shining black, with median and 

 lateral lobes of mesonotum rufous; labrum, clypeus, mandibles, 

 antennae, angles of pronotum, tegulse, anterior and middle 

 legs below bases of coxs, and trochanters, tibiae, and 

 tarsi of hind legs, orange white ; antennae with third seg- 

 ment not as long as fourth and fifth together; saw-guides 

 narrow, upper margins straight, apex rounded, curved from 



upper apex to lower base. Length 4 mm canadensis 



Stigma twice as long as broad; front not punctate around 

 base of antennae 2 



2. Front wings with free part of Mi-HCui joining cell M* dis- 



tinctly beyond the middle; body reddish yellow, with legs 

 pallid, and head, antennae beyond second segment, meso- 

 pleurae, pectus, and apex of abdomen, piceous; head with 

 an indistinct transverse carina between antennae; third an- 

 tennal segment longer than fourth and not as long as 

 fourth and fifth together; saw-guides straight above, ob- 

 liquely truncate, and rounded below. Length 3.5 mm capitalis 



Front wings with free part of M^-fCui joining cell M* at 

 middle 3 



3. Mesonotum and scutellum rufous ; body black, with the two basal 



segments of antenna, middle and lateral lobes of meso- 

 notum, scutellum, its appendage, and postscutellum, rufous; 

 legs with trochanters, knees, front and middle tibiae and 

 tarsi, posterior tibiae (more or less infuscated towards apex), 

 and posterior tarsi, yellowish white ; saw-guides straight above," 

 convex below, obliquely truncated at apex, rounded at angle 

 below, and sharply pointed at upper apical angle. Length 



4.5 mm rohweri 



Mesonotum and scutellum black 4 



