THE CANADIAN ENTOMOLOGIST. 71 



Ovipositor not longer than the abdomen. 



Head polished, with traces of faint transverse stria; before the 

 ocelli but none behind ; second abdominal segment 

 faintly granulated at base. 

 $ , antenna; 29-30 ; g , 26-jointed. (Length, 2 to 2.5 



mm.) »S. tomici, sp. n. 



Ovipositor half the length of abdomen. 



Head transversely rugulose ; second abdominal segment 

 perfectly smooth, polished. 



5 , antennas broken. (Length, 3 mm.) 



*S. brachyurus, sp. n. 



Rust brown, disk of thorax and scutellum black. 



Ovipositor nearly twice the length of the whole insect. 



Head polished, although faintly transversely aciculated ; 



abdomen elongate, black, shining, the petiole finely 



rugose, not longitudinally striated ; the second segment 



with some faint aciculations only at base. 



$ , antennse 20-jointed, reaching only to the base of the 



metathorax. (Length 3.5 to 4 mm.) 



.S. Laflammei, Prov. 



Ovipositor not quite as long as the whole insect. 



Head opaque, finely rugose, the rugae posteriorly transverse ; 

 abdomen oblong-oval, the apical one-third of the second 

 segment and following segments black polished ; petiole 

 coarsely longitudinally striated ; basal half of second 

 segment shagreened. 

 V , antenna; multiarticulate (broken at tips). (Length, 



5.5 mm.) S. floridaniiSi sp. n. 



Brownish-yellow or testaceous, sometimes varied with fuscous. 



Ovipositor shorter than the body, usually shorter than the 

 abdomen. 



Head finely rugose and transversely aciculated ; second 

 abdominal segment basally feebly shagreened ; ovi- 

 positor longer than the abdomen. (Length, 4.5 to 5 



mm.) ,5". trifasciatus, Riley. 



Ovipositor shorter than abdomen. 



Head polished without or with very faint transverse acicula- 

 tions ; base of second segment and the petiole yellow, 



