10 THE CANADIAN ENTOMOLOGIST. 



A rt from Sioux Co., Nebr., July, may be the male of this species, 

 but I am not sure. Length, 6 mm.; the lateral lobes of mesonotum are 

 more shining, wings darker, legs below coxae rufous, tarsi infuscated. 



Dolcrus Piercei, n. sp. — $. Length, 8 mm; length of anterior wing, 

 8 mm. Head rather densely punctured with large punctures, those on the 

 vertex and occiput sparser ; frontal furrows not extending beyond ocelli ; 

 head behind a line joining superior orbits raised ; antennae rather stout, 

 third joint a little longer than fourth; ocelli in a low triangle ; distance 

 between hind ocelli much less than the distance from them to nearest eye 

 margin; clypeus deeply emaTginate, lobes broad, rounded ; middle lobe 

 of mesonotum rather densely punctured, lateral lobes more sparsely 

 punctured; mesopleura punctured as middle lobe of mesonotum; meso- 

 pectus shining, with some distinct punctures ; scutellum probably more 

 densely puncturtd than literal lobes; scutellar appendage longitudinally 

 striated ; claws with a middle tooth ; venation normal ; abdomen shining, 

 smooth ; sheath concealed more than usual ; cerci robust. Colour rugo- 

 finuginous ; head, antennae, spot on middle lobe of mesonotum, scutellum 

 and ap| erdasjc, metanotum, not basal plates, mesopectus, lower part of 

 mesopleuia, legs, black; wings dusky hyaline, nervures and stigma intense 

 black ; he.id (thorax somewhat) with white pile. 



Habitat. — Lincoln, Nebr., April 19-02. "Immodelle" (W. D. Pierce). 

 Type in the University of Nebraska. 



Most closely rehted to D. bicolor, Beauv., but may be separated by 

 the different sculpture of scutellar appendage, punctures on lateral lobes 

 of mesonotum sparser, head being raised behind eyes, black on middle 

 lobe of mesonotum, rugous lateral lobes, etc. 



Dolerus simulans, n. sp. — $, Length, 9 mm.; length of anterior 

 wing, 7 mm. Front and lower part of face densely punctured (in some 

 places somewhat striato-punctate) ; head behind a line from superior orbits 

 somewhat raised, this part is more sparsely punctured and is shining; 

 frontal furrows not extending below ocelli ; ocelli in almost an equilateral 

 triangle, the distance between the hind ocelli much less than to the nearest 

 eye margin ; antenna? rather stout, third joint somewhat longer than 

 fourth ; clypeus deeply, angularly emarginate, lobes pointed ; mesonotum 

 with large, separated punctures ; scutellum with a little lirger and denser 

 punctures; scutellar appendage striated; mesopleura irregulaily roughened ; 

 mesopectus shining, evenly punctured throughout ; claws with an inner 

 tooth, in about the middle; venation normal; abdomen shining; sheath 

 broad, pointed at upper apical corner ; cerci shorter than sheath, robust ; 



