160 LENG AND HAMILTON. 



T. collaris Hoiu, Tr. Am. Ent. Soe. vii, 49. 



Length 12.5 mm. := .50 inch. Habitat. — Colorado, New Mexico. 



[Black, head, thorax and elytra red ; thorax and elytra with the 

 usual black spots ; the thoracic unibone is suddenly elevated and its 

 surface opaque ; anterior and middle femora brown.] " Ham." 



T. Teiuoratiis Lee. 1847, Jour. Ac. Nat. Sci. ser. 2, i, 93; L c. ii, 157; var. 

 basalis Lee, 1852, 1. c. p. 157 ; var. oregonensis Lee, 1854, Proc. Ac. Nat. Sci. 

 PhiL 1869, p. 81. 

 Length 12-16 mm. == .48-.64 inch. Habitat. — Illinois, Iowa, Nehraska, Kanssis, 

 Colorado, Texas, Arizona, California, Oregon, Washington, Montana. 



[The foregoing is the distribution of the species ; following Dr. 

 Horn the varieties may be separated thus : 



Var. FEMORATUS. — Scape of antennce black, femora red, thorax 

 quadriniaculate, elytra with umbone and three black spots on each 

 side. 



Var. MANCUS. — Scape reddish, femora dark, thorax quadi'imacu- 

 late, umbone of elytra and one spot at middle on each side black, 

 occurs in California and Nevada. 



Var. BASALIS. — Scape red, femora red, thorax quadriniaculate, 

 umbone and two spots on the elytra black, generally distributed. 



Var. OREdONENSis. — Scape, femora, and aiderlor tibice red, thorax 

 quadriniaculate, umbone and three spots on each elytron black ; 

 these spots are very small and one or all are frequently absent. Oc- 

 curs in Oregon, Washington and iVrizona. 



The foregoing is the definition of the aggregation of individuals 

 which have received names, but besides there is a mass of others 

 varying in the color of the limbs and in the number and size of the 

 elytral spots in every conceivable way, as remarked by Dr. Horn, 

 the antennie likewise sometimes losing their usual annulation.] 

 " Ham." 



T. quailriinstculatuK Hald., 1847. Tr. Am. Pliil. Soc. x, 53; Lee, Agass. 

 Lake SuiH'rior, ji. 234 ; Jour. Ac. Nat. Sci. ser. 2, ii, 157 ; var. iexanus Horn, 

 Tr. Am. Ent. Soc. vii, 49. 

 Length 10-12 mm. == .40-.48 iiK^h. Habitat.— Mich\ga,n, Lake Superior. Kan 

 sas, Texas, Oregon. 



[Thorax quadriniaculate, elytra with umbone, and a posterior spot 

 each side black ; an example from Oregon has the scape of the an- 

 tennae red. The var. texanus is larger and fre<}uently has a black 

 spot on the elytra behind the scutellum close to the suture.] " Ham." 



