38 MELANDER AND BRUES. 



are widely distributed is not to be doubted. But four North 

 American species have hitherto been known, and these, with the 

 two new species, may be readily identified by use of the follow- 

 ing dichotomy : 



Postscutellum excised 2 



Postscutel lum entire fdwardsii Cress. 



2. Flagellum black ; legs metallic ; tegulse green aglaspuiida, sp. nov. 



Flagellum and legs reddish; tegulae in part testaceous 3 



3. Face and metapleurse bare 4 



Face and metapleurae with silvery pubescence ; wings hyaline 5. 



4. More or less bronzed ; tibiae brown .festi/us Ckll. 



Green; tibire with greenish tint chrysopasina Smith. 



5. Postscutellum black, wings hyaline ; abdomen green or bronzed ; 6.5 mm. 



ivestcottii sp. nov. 



Postscutellum fulvous ; apex of wings somewhat infuscated ; abdomen bluish ; 9 

 mm fulvicornis Cam . 



PARNOPES AGLASPIDULA, sp. nov. 



Female. Length, 10 mm. Bright metallic blue-green. Rugosely- 

 closely punctured. Nowhere densely pubescent, but with a few scattered 

 white hairs, more closely placed on sides of posterior margins of abdominal 

 segments. Antennae piceous, the scape with greenish reflections. Face 

 above antennas smooth, excavated, with impression of an equilateral 

 triangle the base of which lies between the bases of the antennae and from 

 the apex of which arises a vertical line passing nearly one half way to the 

 anterior ocellus. In P. edivardsii there is no such sculpturing. Occipital 

 punctures confluent. Mandibles rather robust ; black, except for piceous 

 central space. Clypeus concolorous with face, its black apical margin 

 truncate and devoid of hair. Proboscis reaching to first abdominal seg- 

 ment. Thorax with larger punctures than head, the punctures becoming 

 stronger posteriorly. The median prothoracic impression is almost obliter- 

 ated, as are also the parapsidal grooves. Between the parapsidal grooves 

 the thorax is almost black, likewise the scutellum and postscutellum. 

 Postscutellum with a narrow incision extending about one third the distance 

 into the disc, its sides straight in one specimen and bowed outwardly in 

 the other. Tegulse narrow, wholly blue-green, with less strongly-marked 

 punctures than thorax. Metathoracic angles prominent, with reticulate 

 markings. Abdominal segments violet-blue on anterior and posterior 

 margins, green in middle portion ; with no apically depressed bands : 

 apical segment with a median carina terminating anteriorly in a narrow, 

 smooth space and posteriorly separating the two subapical oblique grooves, 

 the margin denticulate, with the stronger teeth, about fourteen in number, 

 in a middle series. Venter piceous, smooth. Legs concolorous with body, 

 though gradually lighter in color towards end : knees, apices of tibiae, and 

 tarsi lighter. Wings infuscated, the veins piceous. 



