33(5 srr.FAMiLy x. c 



dusky. Beak about as long as thorax, cylindrical, strongly curved, rather 

 deeply punctate; front with a distinct fovea. Thorax subconical. slightly 

 longer than wide at base, sides parallel from base to middle, thence 

 converging to apex; disc with dilated, confluent, feebly impressed punc- 

 tures, the median impression on basal half not deep. Elytra with sides 

 parallel for three-fourths their length, thence converging to the separately 

 rounded lips; disc with rows of rather large, round, close-set punctures. 

 Length 7.4 8.5 mm. 



Perry County, Ind., rare; May 23. Sanford, Fla.. April 4. 

 Ranges from New Jersey and Pennsylvania to Iowa and Florida. 



503 (8499). Lixus MVSCULUS Say, 1831, 14; ibid, I, 276. 



Oblong-oval, robust. Black, sparsely clothed with fine gray hairs, an- 

 tennae piceous. Beak shorter than thorax, stout, densely punctate. Thorax 

 short, slightly wider at base than long, sides feebly converging from base to 

 apex; disc impressed before and behind the middle, coarsely and sparsely 

 punctate, the intervals between the large punctures finely punctulate. 

 Elytra with sides as in marginatus, their tips subacute; disc with rows of 

 small, deep, distant punctures and with a broad shallow impression be- 

 hind the scutellum. Length 7.2 8.5 mm. 



Lake County, Ind., scarce ; May 12 20. Throughout New 

 Jersey and at many localities near New York City; April Sept. 

 Dnnedin, Sanford, Sarasota, Crescent City and Lake Poinsett, 

 Fla., Jan. 1 April 4. Ranges from Canada and New Jersey to 

 Texas and Colorado. Reared from Polyr/ointin amphibium L. in 

 Michigan l>y Kellicott, and from P. pcnnsi/Jraniciiin L. in Texas 

 by Pierce, who states (1907, 201) that the eggs are laid in the 

 stems near the joints and cause a cylindrical gall above the joint, 

 thus giving the larvre sufficient space to develop. The galls are 

 twice the diameter of the stem and about three-fourths of an inch 

 long. The larv.e, while in the cells, are attacked by a number of 

 primary parasites. When mature, the adults completely fill the 

 cells, and escape by gnawing a round hole in front of the head. 

 They frequently hibernate within the cells. 



504 (8493) Lixus LTNCTINASTS Lee., 1876, 157. 



Elongate-oval, robust. Black, antennae, tibiae and tarsi reddish-brown; 

 above and beneath thinly clothed with fine yellowish-gray pubescence. 

 Beak stout, cylindrical, as long as thorax, much more coarsely and roughly 

 punctate than in untsi-iilus: antennae inserted at its apical fourth; frontal 

 fovea small, distinct. Thorax slightly wider than long, sides parallel on 

 basal third, disc much narrowed in front, coarsely shallowly and rugosely 

 punctate, basal impression rather small, not deep. Elytra at base not 

 wider than thorax, separately rounded at tips; disc with rows of rather 

 small, close-set punctures, median basal impression shallow, the lateral ones 

 deep. Under surface finely and sparsely punctate. Length 8 mm. 



