TRIBE III. IIYPERIXI. 149 



antennae and legs reddish-brown. Beak about as long as thorax, female, 

 shorter, male, finely and closely punctate. Scape of antennae as long 

 as funicle, not reaching the eye, first joint of funicle one-third longer than 

 second, which is slightly longer than third. Thorax as long as wide, sides 

 rounded, disc finely and densely punctate, each puncture closed by a scale. 

 Elytra elongate-oval, sides parallel for four-fifths their length; striae dis- 

 tinct, finely punctured; intervals flat, without seta?. Under surface cover- 

 ed with paler scales. Length 3.3 5 mm. 



Common throughout Indiana, more so in the western half; 

 April 23 July 8. Mating on the water persiearia, Poll/you inn 

 ampliibiuiii L., June 7; taken also from Jersey tea and other 

 plants, usually near moist places. Ranges from Quebec and New 

 England to the Rocky Mountains, south to Texas. Known also 

 from Oregon and Washington. Probably feeds on a number of 

 species of Polygonum, the cocoons being formed on the upper side 

 of the leaves, the edges of which are bent over it to aid in con- 

 cealment. 



187 (8429). PHYTO>roMt T s TRIVITTATUS Say, 1831, 12; ibid, I, 273. 



Elongate-oval. Black or dark reddish-brown, usually densely clothed 

 with yellowish-brown scales and long pale hairs, the scales arranged to 

 form a pale median line on thorax and a broader stripe on each side, the 

 latter extending back onto the humerus and often along the third interval 

 to beyond middle; elytra with the alternate intervals, especially those on 

 the sides, tessellated with dark brown and also with a large dark humeral 

 spot; antennae reddish-brown; legs darker. Head densely pubescent, the 

 long hairs extending down the beak, which is marked with a smooth 

 carina and a long narrow stria above the antennal groove. Thorax strongly 

 rounded on the sides; disc rather coarsely, sparsely and deeply punctate. 

 Elytra about four times longer than thorax; striae very distinct, each 

 puncture bearing a short hair; intervals with longer recurved white hairs. 

 Length 3.86.5 mm. 



Osborn, Lake County, Tnd., June 21. Ranges from northern 

 Indiana west and southwest to Vancouver, B. C., Kansas and New 

 Mexico. Palos Park, Chicago, specimens were bred from larvae 

 collected on the ground pea, LatJii/nis ccnosus Muhl., emerging 

 as adults on June 28. P. sctigcn<x Lee. is a synonym. 



188 (- -). PHYTOXOMVS MARITIMUS Titus, 1911,432. 



Elongate-oblong. Reddish-black, clothed with pale yellow scales and 

 white and black hairs, the scales arranged to form stripes and dark spots 

 on thorax and elytra, much as in trivittatiis. Thorax narrower in front 

 than behind, widest at middle; sides strongly rounded, disc coarsely, often 

 confluently punctured. Elytra at base but slightly wider than thorax; 

 the declivity very prominent and extending quite to the tip. Length 5 6.5 

 mm. 



