26 
GG Antennas usually annulated, body and legs stout, prothorax with 
sides usually testaceous; punetation of the elytra usually 
smaller and closer. 
H Pronotum with the pubescence on the sides erect and usually 
long with rather numerous flying hairs, median line broad- 
ly impressed. (10) obliterate), Hald. 
HH Pronotum with the pubescence on the sides short and recum- 
bent, with very few flying hairs, the median line narrowly 
impressed and sulcate at the base. (11) deleta Lee. 
DD Pronotum with disk very strongly convex, without impressed median line; 
elytra coarsely not closely punctured, apices almost transversely trun- 
cate and feebly emarginate, form very slender. (12) lineola Say. 
(1) Leptura gigas Lee., 1874, Sm. Misc. Coll., vol. XI, No. 264, p. 223. 
Length 31 to 35 mm. The strongly costate elytra, usually tipped with 
black, distinguish this species from emarginata Fab. 
We can see no reason for excepting gigas and emarginata from this 
genus. 
Two specimens were examined, both from Texas. New Mexico has 
also been cited in literature. 
Type locality: Texas. 
(2) Leptura emarginata Fab., 1787, Mant. Ins., vol. 1, p. 148. 
Length 30 mm. This species and S. gigas Lee. are the largest in the 
group. The elytra are velvety red, not costate or only very feebly so, 
with the apices black in some cases for a third of the elytral length. 
Eight specimens have been examined from New Jersey, Alabama, 
Texas, Kentucky, Pennsylvania, and Tennessee. In literature, Canada 
and North Carolina are cited. 
Host plants: Castanea (Blatchley), Ulmus (Felt), Fagus , Quercus , 
Beiula (Craighead). 
Type locality : Cajannae (Cayenne). 
(3) Leptura ardhracina Lee., 1875, Trans. Am. Eat. Soc., vol. 5, p. 174. 
subcostata Fall, 1907, Trans. Am. Ent. Soc., vol. 33, p. 249. 
Length 18 to 19 mm. Pronotum with the median sulcus wider than 
in plagifera Lee., the sides of the pronotum converging from base to apex, 
nearly straight, feebly angulate before the middle, the disk very finely 
punctate; elytral apices wider and less strongly dehiscent than plagifera; 
pygidium in female only feebly convex, coarsely punctured; male with 
pronotum longer than plagifera , sides nearly straight, pubescence short, 
last ventral segment of abdomen with lateral spines very strongly developed. 
The type series contains three black specimens; type c? 1 , Oregon; 
d% Nevada; 9 , Oregon. 
The type of subcostata Fall was compared with the type of anihracina 
Lee. by Mr. H. C. Fall and the senior author. The two types are exceed- 
ingly close and it was decided to leave them in this paper under ardhracina 
Lee. Of the subcostata series, Mr. Hopping has collected more than a 
dozen specimens in Tulare and Kern counties, California, in all but one of 
which only the apical portions of elytra were black, the basal part of the 
elytra and the pronotum being red. One specimen has only the base of the 
elytra and the disk of the head and pronotum red; another, sent for exam- 
ination by Mr. Schaeffer, was entirely black, as are three specimens from 
Onion Valley, California, in the United States National Museum collection 
