NOTES UPON THE NORTH AMERICAN MYRIAPODS DESCRIBED BY 



C. L. KOCH. 

 BY CHARLES H. BOLLMAN. 



As Dr. Koch's papers* relating to the North American myriapoch) 

 seem to have been overlooked by previous authors, I have thought it 

 best to bring together in a paper my notes relating to his species. 



The second of Dr. Koch's works is merely a more extended account of 

 the species mentioned in his first work, with plates of each. 



Of the fourteen new species described by Koch only five are good. 

 I desire to express my thanks to Dr. Lucien M. Underwood, of Syr- 

 acuse, N. Y., for the privilege of examining a copy of Koch's "Die 

 Myriapoden." 



1. Spirostreptus nutans Koch. Syst. Myr., 104, 1847 (North America) ; Die Myr., i, 



14, pi. 7, fig. 14, 1863. 



As the descriptions and figures of this species plainly show, it should 

 be referred to Parajulus canadensis (Newport). 



2. Spirostreptus clavipes Koch. Syst. Myr., 105, 1847 (Pennsylvania) ; Die Myr., n, 



103, pi. 115, fig. 226, 1863. 



This species, described from a male specimen, is identical with the 

 preceding. The differences Koch draws between them are sexual. 

 His figure of the first pair of legs seems to indicate that his specimens 

 were not full grown. 



3. Campodes flavicornis Koch. Syst. Myr., 126, 1847 (Pennsylvania) ; Die Myr., n, 



17, pi. 68, fig. 140, 1863. 



This species, the type of the genus Campodes, has been well de- 

 scribed by Koch. It is the same as Spirostrephon coesioannulatus Wood 

 and the Pseudotremia vudii of Cope. Campodes Koch (= Cryptotrichus 

 Packard). 



4. Campodes fuscicornis Koch. Syst. Myr., 127, 1847 (Pennsylvania) ; Die Myr., u, 



16, pi. 68, fig. 139, 1863. 



This new species, as Koch has hinted, " Yielleicht nur Abart der 

 vorigen," is only a slight color variety of the preceding, and is not 

 worthy of specific or subspecific rank. 



5. Scytonotus scabricollis Koch. Syst. Myr., 130, 1847 (Pennsylvania) ; Die Myr., II, 



41, pi. 80, fig. 165, 1863. 



* 1847. System der Myriapoden. 

 1863. Die Myriapoden i, II. 

 150 



