ENTOMOLOGICAL NET;S. 93 



fl. variety TRIFASCIATA. 



I am not a " lumpgr," and so do not believe in the establish 

 ing of varieties except where the evidence is very unusual. I 

 have series of hundreds of specimens in this group from va- 

 rious localities, and these are now in the National Museum, 

 where they may be examined by students. I consider color 

 as not of specific value here, and the slight variations (real, 

 not apparent') in form of last ventral segment of varietal value 

 only. The color varies from green (aureoviridix and obtnxa i 

 through yellow and brown (clypeata to entirely black above 

 i lirhif/Ntoirii >. The size varies from rather small in H tricolor to 

 large in anreoriridlx, which is one of the largest Typhlocybids 

 These names represent geographical varieties, ranging from 

 the East (represented by the forms of oMum), through the 

 Rocky Mountain region (represented by the cJypeata and aure- 

 oriridis forms) to the Pacific coast (represented by cli/pcata and 

 liriiH/xloiiii). Specimens approaching typical smnraadnht are 

 found throughout the United States, which is a significant 

 fact. Trifasciata is paralleled by virdii and a variety of punt 

 with smoky marked elytra. 



All the species of group II need further study, and I would 

 recommend that entomologists all over the West sweep Ar- 

 tf'iirisias especially, thoroughly, and not to pause until they 

 have laid in series of hundreds of specimens of the species 

 found on these and other Western plants. 



Atr<>/((b<'x and simitis are synonymous with splendida, which 

 is a common species in the South. Xhirilix is entered in Gil- 

 lette's table, but I find no description of it in the text. 1 

 have seen the types. 



The types of paUiiht were collected in 1.S71) and are totally 

 decolored by their twenty years' experience in collections. I 

 have swept the cotton plant in various parts of the South and 

 have found on il only Empoawn JlarcuraiN and I>!crancnr(( itni- 

 imitcla. Other than on the color, or rather lack of color, I 

 cannot separate jut/lid't from Jl'.ircwnix (compare Gillette's de- 

 scriptions and figures). Mr.riraiia and riridfxcrnx are insi-p 

 arable in large series, running one into the other. 



Mr. Gillette mentions my original specimens, which he 

 agreed with me was punt, yet he describes xnoiri, the descrip- 

 tion of which is very good of the original specimen of jmnt. I 



