92 CALIFORNIA ACADEMY OF SCIENCES. 



ill each anterior angle; a dark blackish brown blotch in 

 the anterior angles, and a narrow black band along the 

 posterior margin, widening as it reaches the angle. 

 Metathorax longer than the prothorax, with sides diverg- 

 ing; a series of six long hairs on the posterior margin 

 which is narrowly rounded upon the abdomen; anterior 

 angles with a small blotch of dark brown. Sternal 

 markings showing through distinctly, the intercoxal 

 lines of the metasternum appearing as a dark trans- 

 verse band across the metathorax, the lateral extremities 

 not reaching the margin but bending irregularly back- 

 ward, abruptly stopping before they reach the posterior 

 angle. Legs translucent with dark annulations and 

 semiannulations. 



Abdomen narrowly elongate, segments 1-7 with^nar- 

 row, sharply defined black lateral bands; last segment 

 uncolored, narrowly rounding, with several long dorsal 

 hairs; the ventral surface of segments 1-6 with two 

 median, linear brown transverse blotches on each seg- 

 ment; these blotches are united on segment 6 by a 

 brown median line; segment 7 with two longitudinal 

 brown blotches each side of the median line approach- 

 ing each other anteriorly; two very small brown 

 blotches on the last segment near the anterior angle. 



Nirmus longus Kellogg. 



New Mallophaga, II, 1896, p. 490, pi, Isvii, fig. 1. 



A single male from the Barn Swallow, Chelidon ery- 

 throgastra (Palo Alto ? California). This specimen dif- 

 fers distinctly from the type specimens in having but 

 three instead of six lateral metathoracic hairs, in the 

 more elongate head, and in the distinctness of the 

 median uncolored longitudinal line of the abdomen. 

 It should be distinguished by a varietal name. 



