72 



S. UCIIIDA : 



angles of segments; posterior margin of anterior seven segments with a short 

 hair on each side ; eighth segment with evenly rounded sides, each with two 

 short hairs ; vulva convex, fringed with fine hairs ; entire abdomen yellowish 

 excepting the distinct blackish brown submarginal lateral bands, extending 

 from the end of metathoracic bands to the middle of the eighth segment, the 

 margins outside those bands being suffused with dark brown. 



This species resembles Kellogg's Pliysostomum pollens as well as Ph. 

 invadens, but differs markedly from either in size, markings, shape of head, 

 etc. 



