98 THE CANADIAN ENTOMOLOGIST. 



THE LITHOBIOMORPHA OF WISCONSIN AND NEIGHBOUR- 

 ING STATES. 



RALPH V. CHAMBERLIN, BRIGHAM YOUNG UNIVERSITY, PROVO, UTAH. 



This paper is based primarily upon collections made by the author in 

 Nebraska, Iowa, Illinois, Wisconsin and Peninsular Michigan during a 

 brief trip through these States in the early part of the summer of 1910. 

 The excessive dryness of the season in this section of the country was 

 very unfavourable for the collecting of chilopods and diplopods. The 

 species reported from Indiana and Minnesota by Bollman have been 

 included. Specimens of all but a feA' of the forms previously recorded 

 from the States mentioned, a well as a number which are new, were 

 obtained by the author. The new locality records give a clearer 

 knowledge of the distribution of a number of species. I'he key to species 

 of Lithobius is intended to include all those now known to occur within 

 the region above indicated. 



Family Henicopid^. 

 This family is represented in this region by but one species — 

 La myites fulvicorn is M e i n e r t . 



Laviyctes fiilvicor?iis Meinert. 

 The many specimens secured seemed to agree fully with the Euro- 

 pean form. 



Localities. — Omaha, Neb.: Peoria, 111.; Haugen, Eau Claire, Ash- 

 land, Marinette and Beloit, Wis.; Watersmeet, Powers and Menominee, 

 Mich. Also reported from Winona, Minn, 



Family Lithobiid^. 

 Of this family ihs genera L'thobius and Bothropolys are represented. 

 Species conforming to M jnotarsobius, as defiled by Verhoeff, do not 

 occur among those thus far known from the region. 



Genus Bothropolys Wood. 

 But one species of this genus has been found within these States. 



Bothropolys 7nultide?itatus (Newport). 

 One of the most abundant and widespread of the North American 

 Lithobiomorpha. 



Localities. — Franklin Grove and Peoria, 111.; Ann Arbor, Mich. 

 Also reported as occurring throughout Indiana, and at Ludington, Mich 



March, 1911 



