186 iOWA ACADEMY OF SCIENCES. 



«, but would apply only slightly to var. h, and would abso- 

 lutely exclude Sub. sp. binotata. 



C.binotata was a ms. name given to that var. byUhler, I believe, 

 and under which name specimens have been distributed in col- 

 lections. 



C. PROTEUS, FITCH. 

 C. saint cyri. Pro v. 

 The original description was published in the fourth annual 

 report of the New York State Museum (1851). Republished 

 in the ninth report of the State Entomologist of New York, 

 page 394, from which the following description and sub-divis- 

 ions are copied: 



Head bright yellow, a black band on anterior margin of vertex and a 

 broader one on the front; front polished, without transverse strise; a callous 

 black dot near the apex of the elytra; legs yellowish-white, tarsi black. 

 Length, 0.16; males slightly smaller. 



Closely allied to the C. atra of Germ., but on examining a host of speci- 

 mens not one occurs in which the legs are annulated with black or fuscous. 



He then divides the species up into sub-species and varieties 

 as follows: 



Sub. sp. I. £avicoUis. Thorax entirely yellow. 

 Var. a. Elytra yellow. 



b. Elytra with an oblique blackish vitta. 

 Sub. sp. II. cincticollis. Thorax with a black band. 



Var. a. An interrupted black band on the anterior margin of the 

 thorax. 



An entire black band on anterior margin of the thorax. 



Thoracic band crossing the disk instead of the anterior 

 margin. 



Band on the disk of the thorax, and scutel black. 



maculicoUis. Thorax with one or two discoidal spots. 



A black spot on disk and an interrupted band anteriorly. 



A black spot on the disk and anterior band entire. 



Two black spots on the disk of the thorax. 

 nigricoUis. Thorax black, with a yellow band forward of 

 the disk. 

 Var. a. The black band on the anterior margin of the thorax inter- 

 rupted. 

 h. The band continuous. 



c. Scutel black, with a yellow dot at its base. 



d. Scutel entirely black. 



Fitch's "host" of specimens were probably all from one 

 locality and may all have belonged to one sub. sp. , according 

 to|my classification below. At any rate I have at hand four 

 specimens, that are all clearly and unquestionably varieties of 



