SYNOPSIS OF TIIK LAMIINvK. 147 



Elytra obliquely narrowed and iirolonjied at tip, slijiiitly dehiscent, coarsely imiit- 

 tate: pubescence thin, cinereous, variegated witli fulvous jiatches: thorax 



trilineate with fulvous -i. iiiiitioa. 



Elytra rounded at tip. 



Elytra vittate. or with lateral stripes. 



Pubescence silvery white; thorax and elytra with three broad, pubescent, 



brown vittai 1. caii4li<la. 



Pubescence cinereous; head and thorax with bright yellow ])ubesccnce. six 

 black denuded spots on thorax; elytra with broad marginal and sutural 



stripe bright yellow 11. |)uuctieolli»i. 



Elytra with broad submarginal stripe and suture narrowly, yellowish 

 scjirlet ; a broad stripe on each side of thorax; surface piceous, with 



coarse punctures 10. latorali!<4. 



Elytra with broad submarginal stripe extending on thorax to apex yellowish 

 scarlet, connected with which are three oblique bands which may reach 

 the suture or be mere dents; surface piceous, less coar.sely punctate. 



i). trideiitata. 

 Elytra with white pube.scent spots; surface brown. 



Thorax with two white stripes, elytra each with two large white spots attain 

 ing neither margiii nor suture; sides of under surface white. 



5. cretafa. 

 Thorax with two white stripes; elytra each with a humeral and two subsu- 

 tural white spots, sometimes obsolescent in the % ; under surface alto- 

 gether or with the sides white 0. fja.yi. 



Elytra each with three small denuded spots (sometimes wanting) ; pui)escence 



dense, uniformly olivaceous or yellowish brown 7. VCStita. 



Elytra with a transverse undulate fascia; surface color ferruginous to piceous. 



Larger 8. <liscoi<Iea 9 . 



Elytra unicolorous, not variegated. 

 Thorax with a broad denuded stripe each side of the median line; elytra 

 coarsely not closely punctate; i)iceous to ferruginous; underside densely 

 clothed with grayish white pubescence. Smaller- . . -8. (liscoitlea %. 

 Thorax with a denser line of gray pubescence each side; black, coarsely 

 punctured, thinly clothed with fine cinereous pubescence; varies; i)u- 

 bescence fulvous, punctures rather coarser (California, Oregon). 



12. iiKCMla. 



Thorax with i)ubescence uniform; black, densely clothed throughout with 



cinereous jjuhescence, less coarsely punctured I'.i. <-oilColor. 



The outer claw of" the front and middle tarsi of the male may be 

 either .simple, or with a large basal tooth or obtuse process. 



This process is long in obliqua, calcarata, Candida and cretafa ; 

 moderate in muf'ica and vestita ; snniU in fayi ; that of front feet 

 small, of middle large, in db^coidea and trideniata ; short and broad 

 in laterul'is, and simple in puncticollis, m(esta and concolor. 



The larviu of all the species of Saperda mine under the bark and 

 in the wood of living trees, being often very de.'^tructive to fruit and 

 such as are planted for shade. The female is possessed of very 



TR.XNS. AM. K.VT. SOC. XXIII. MAY, 1896 



