THE CANADIAN ENTOMOLOGIST 35 



and the eighth and ninth, the head except the supraclypcal area for the most 

 part, the clypeus, the hibrum, and some irregular marks on the postocellar area, 

 sometimes represented by two black spots, an o\'al spot on each lateral lobe of 

 mesonotum and a minute spot near the caudo-mesal angle of each oval spot, 

 the metanotum and the sutures between it and the basal plates and first 

 abdominal segment more or less, the ventral aspect of the mesopleura and 

 metapleura, sometimes with a rufus spot on the mesopleura, variable in size 

 and distinctness, mesosternum and metasternum, the coxa^ except the distal 

 portion, and a band at the distal end of the metafemora and metatibiae; the 

 labrum, antennal segments five and six, sometimes the proximal half of seven 

 and the teguhie white. Length 8-10 mm. 



Male. — The male differs only in having a larger proportion of black and in 

 having the rufous colour tending toward white; the antennae are pale beyond 

 the second segment, rufous or yellowish, the distal segments viewed in certain 

 lights, whitish; the three distal segments of the abdomen usually black, the 

 entire abdomen sometimes rufous; the pronotum in great part black; the meso-' 

 pleura entirely black. Length 7-8 mm. 



Habitat. — Ottawa, Ontario, (W. Hague Harrington) ; North fork of Swan- 

 aanoa River, Black Mountains, North Carolina (Nathan Banks and Franklin 

 Sherman) ; Franconia, New Hampshire (Mrs. A. T. Slosson) ; Durham, New 

 Hampshire (C. M. Weed); Hampton, New Hampshire (S. Albert Shaw); Ithaca, 

 New York. 



SOME NEW AMERICAN DELPHACID^. 



BY F. MUIR. HONOLULU, T. H. 



Genus Columbiana, nov. 



Head a little narrower than thorax; vertex slightly wider than long, apex 

 slightly narrower than base, basal areas five-sided, nearly the length of the 

 vertex with an oblong foveola in each, the diamond-shape cell small and pro- 

 jecting beyond the apical margin; length of face about twace the width, slightly 

 narrowed between the eyes beyond which the sides parallel, median carina 

 simple, slightly thickened at base; in profile vertex and face rounded; antennse 

 cylindrical, reaching to apex of face, first joint about as long as broad, second 

 joint about twice the length of first and slightly thicker; clypeus tricarinate. 

 Pronotum tricarinate, lateral carina? divergingly curved posteriorly not reaching 

 to the hind margin; mesonotum tricarinate. Hind tibia longer than the tarsi, 

 first tarsus equal in length to the two others together; spur slightly shorter than 

 the first tarsus, narrow, cultrate, concave on the inner surface, a tooth on apex 

 but none on the hind margin. Media touching cubitus, a short cross-vein 

 between media and radius. 



This genus comes near to Sogatopsis Muir; if we disregard the spur it comes 

 near to Delphacodes Fieb. and Sogata Dist. 



Columbiana lloydi, sp. nov. Figs. 6-a, 7-a. 



Male, macropterous. Castaneous, darker on pro- and mesonota and 

 abdomen. Tegmina hyaline, veins brown wath very fine granules, fuscous or 

 brown over the basal half of costal cell and slightly so over clavus, with a darker 

 mark at the apex of claval vein. 



February, 1919 



