240 THE CANADIAN ENTOMOLOGIST 



Scutellum triangular, about one and one-third times as deep as the 

 prothorax, sides straight, median and lateral carinae prominent, the latter 

 attaining the posterior margin ; colour uniform reddish brown. 



Elytra short, practically covering the first abdominal segment, highly 

 polished, veins indistinct ; colour reddish brown, with two yellowish white 

 dots on the apical margin of each elytron. 



Abdomen uniformly reddish brown, a prominent carina extending 

 along the middle of each tergum ; genitalia reddish brown, pygofers ending 

 in rather a sharp point; plates short, extending only one-third the length 

 of the pygofers, a little lighter in colour; style white. Length, 2 mm. 



Brachypterous ^ . — Form and markings the same as that of the 

 female, considerably smaller in size. Genitalia, aperture of the pygofers 

 quite long and narrow, superior wall of the anal tube produced in long 

 outcurving horns, these rest on projecting points of the ventral margins of 

 the pygofers ; styles small ; anal style light yellow, rest of the genitalia 

 dark reddish brown. Length, 1.5 mm. 



This species resembles P. marginatus quite closely. It is a much 

 smaller species, there are distinct differences in the proportions of the 

 front and antennae, the spur is smaller proportionally. There are also 

 differences in the genitalia and some noticeable colour differences. P. 

 bmotatiis lacks the white on the prothorax, the front is much darker, and 

 has two white spots on the apical margin of the elytra instead of a full 

 white band as in marginatus. 



Type of the male and female taken at De \Vitt, Mitchell Co., Ga., 

 April 6, 1912, by the author. Types in the author's collection. 



Libtitnia dolera, n. sp. 



Macropterous c^ . — A medium-sized form for this genus. Eyes oval, 

 deeply and narrowly indented below to receive the antennae ; colour gray, 

 darker in the centre. Vertex slightly longer than wide, projecting a little 

 beyond the eyes, carinae distinct, except the posterior median, which is 

 quite faint ; foveae deep ; colour dark reddish brown. 



Front widest a little below the eyes, constricted considerably between 

 the eyes, sides curved, the median and lateral carinae sharp and prominent, 

 the former forked at the vertex ; clypeo-frontal suture slightly curved ; 

 colour reddish brown ^ with the ventral portions of the lateral carinae dark 

 yellow. Clypeus a lighter brown than the front, the carina distinct. 



Basal segment of the antennae one-third the length of the second 

 segment, dark brown ; second segment rather thick, tubercled ; light 

 yellow in colour. 



