1907.] NATURAL SCIENCES OF PHILADELPHIA. 495 



white; pleural flaps of the i)r()notuni white and pruinose below, above 

 black with a pale median cloud ; hind mar<2;in of the eyes pale. Scutel- 

 lura pale with the median line, basal angles and a short vitta on either 

 side black. Elytra with the longitudinal nervures and a broad vitta 

 following the inner margin of the scutellum to behind the middle, 

 black. Venter marked with black along the middle and sides. 



Described from one pair taken at Rifle, Colo., July 26, 1900. This 

 species and naso of Fowler present a new facies in this genus by their 

 produced vertex, but in every other respect they are true Thionias and 

 should doubtless be retained here. 



Subfamily ACANALOXIDA Stal. 



T can see no reason for uniting this subfamily with the Issida on one 

 hand or with the Flatida on the other. Four genera and ten species 

 have been recorded from our territory, but doubtless many others will 

 yet be found. 



Genus AMPHISCEPA Germ. 

 Amphisoepa pumila n. sp. 



Form nearly of Hysteropterum, much smaller than any other described 

 species; elytra almost semicircular in outline. Vertex very short, 

 rounded almost from the base to the front with no transverse carina 

 between the two; anterior and posterior margins parallel. Front 

 almost quadrate, the lower angles cut off in line with the sides of the 

 clypeus, the sides below a little expanded and reflexed; base of the 

 clypeus strongly angled, reaching almost to the line of the antennae. 

 Pronotum short, broadly rounded before, almost straight behind. 

 Elytra but little longer than broad, somewhat tumid toward the base, 

 the costa semicircularly rounded, the whole surface rather closely but 

 not very distinctly reticulated. Length 4 mm.; of the elytra 3 mm.; 

 width of the elytra 2^ mm. 



Color soiled brownish testaceous a little tinged with green, paler 

 beneath, commissural and apical margins of the elytra faintly dotted 

 with brownish; tumid basal part of the elytra with a piceous spot. 

 Spines of posterior tibiae tipped with black. 



Described from a single example taken by Mrs. Slosson at Biscayne 

 Bay, Florida. 



I have not yet seen Germar's description of this genus, but evidently 

 It was founded for his malina, which Stal places as a synonym of Flata 

 hivittata Say, published the same year. In three places where Stal 

 mentions this genus he places it in the Issida and states that the hind 

 tibiae are unispinose, but in this he is certainly mistaken, as pointed out 



