Some Hypermetamorphic Beetles 5 



tion to the sucker several claws, Myodites one claw, and Xenos 

 none. All these larvae are Campodeaform. 



I am not prepared to enter into an extended discussion of the 

 hypermetamorphic beetles, but shall limit it to those features 

 actually studied or observed during my investigations. The value 

 of the present article should consist mainly in allowing others to 

 compare their views with those herein stated and to come to 

 definite conclusions thereby. Material is at hand for a discu- 

 of the Stylopidae, but it will be held back with the exception of 

 one description of a triunguloid. 



For purposes of clearness and conciseness merely description-, 

 and tables are included herewith, while all biological notes, which 

 refer entirely to Myodites, will be found in fart II. 



RHIPIPHORIDAE 



Myodifes scabcr Lee. A female, supposedly of this species, 

 was very kindly loaned me by Mr. Warren Knaus. The speci- 

 men was taken at McPherson, Kan., in June. The abdomen is 

 red as in solidaginis. 



The following differences appear between it and solidaginis. 

 The pygidium in the former is red, in the latter black. The first 

 joint of the hind tarsus in scabcr is long, very little thicker than 

 the second ; in solidaginis it is stout and very thick, and more 

 than twice as long as the second and third joints together. The 

 abdomen of scabcr is without median spots, while solidaginis 

 shows these in every one of over a hundred females examined. 

 The anterior tibiae of solidaginis are visibly longer than the tarsi, 

 while in scabcr they are seemingly shorter than the tarsi. 



Myodites solidaginis Pierce. 1 In addition to the preceding 

 notes on this species it is important to state that the male averages 

 the same size as the females. In one pair the male was larger 

 than the female. 



In the characterization of this species the description of the 

 scutellum is erroneous. It should read : Scutellum triangu- 

 lar, impunctate, hidden by prothorax. Mesothorax very finely 

 densely punctate, pubescent, with well-developed, glabrous, me- 



x See pi. I, figs. 3, 12. 



157 



