396 ENTOMOLOGICAL NEWS. [Xov.,'17 



been involved. Nothing else than the looper could be fixed 

 upon as the probable insect. Naturally, at the time, it would 

 have run its course and disappeared, and therefore be beyond 

 treatment. 



The North American Species of Trigonoderus 

 Westwood, Females (Hymen.). 



By A. A. GiRAULT, Glenn Dale, Maryland. 

 Antennae 13-jointed, two ring-joints. Pronotum more or 

 less quadrate. Parapsidal furrows complete. Scutellum with 

 a punctate cross-suture near apex. Abdomen elongate with a 

 short stylus. T. varipes Viereck is not included since it bears 

 incomplete parapsidal furrows. Dark metallic green, scaly 

 punctate. Large species. 



I. Wings with a macula at the stigmal vein. 

 Legs (except the coxae) and the scape pale yellowish or reddish. 

 Substigmal blotch along the proximal side of the stigmal vein and 

 extending beyond its apex. Clypeus at apex entire. Segment 2 

 of abdomen entire. 



Abdomen centrally suffused more or less with brownish. Pro- 

 podeum uniformly, finely punctate, with a median carina only, 

 the foveae along cephalic margin not coarse nor conspicuous, 

 the spiracle minute, round, central. Third tooth of mandible 

 acute. Slender. Funicle i nearly thrice longer than wide. 

 Tegula red. Slender, not large. Length 3.5 mm. 



algonquinia new species. 

 Substigmal blotch from the apex of the stigmal vein, thus free 

 from it. Clypeus at apex with an acute tooth mesad. Segment 

 2 of abdomen caudad deeply incised. 



Abdomen wholly metallic. Propodeum shining, more or less 

 scaly, impunctate, with median and lateral carinae, the 

 foveae along cephalic margin large, coarse, the spiracle 

 nearly central, large, oblong, mandibles 3- and 4- dentate, 

 the last tooth truncate. Robust. Pedicel reddish beneath 

 and at apex. Clypeus glabrous. Length 5.5 mm. 



unguttus new species, 

 n. Wings hyaline or subhyaline, with no distinct macula. 

 Legs yellow. 

 Antennae brownish yellow, the pedicel metallic, contrasting. Ab- 

 domen "flattened, rounded." 



aegeriae Ashmead. 



