NEW MALLUl'llAUA. 19 



posterior angle on each lateral half of tiie margin; lat- 

 eral borders blackish brown, the color extending inward, 

 bnl paling, in latero-posterior angles. Legs of |>ale 

 ground color of the body, with narrow dark marginal 

 markings. Sternal markings consisting of intercoxal 

 lines, a small triangular blotch on mesothorax which 

 fits like an apex to a larger pentagonal blotch on the 

 metathorax. 



Abdomen widening posteriorly to segment 0, then 

 tapering bluntly; posterior segments with weak longish 

 hairs in posterior angles; numerous weak, longish hairs 

 on dorsal aspect in the broad median uncolored longi- 

 tudinal line; lateral bands brown, distinct, extending 

 posteriorly only through segment 7; pale brown, quad- 

 rangular, lateral, transverse blotches; last segment con- 

 vex behind, witli a very slight median emargination. 



Nirmus virgatus n. sp. (Plate II. fig. 5). 



Males and females from an icterine bird, Amblycercus 

 holosericeufi (Panama). Much like .V. Uluntriti Kellogg 

 (New Mallophaga, 11, p. 494, pi. Ixvii, fig. 4), from 

 the Red-winged Blackbird, A(jtlaias /jhaniceus (Law- 

 rence, Kansas), and like oraatisslmus Giebel (Insecta 

 Epizoa, !>. 144). The new form has a narrower front 

 with the anterior angles not rounded, and does not 

 possess the distinct bands internal to the antennal 

 bands of the head of illufifris. The lateral bands of 

 the abdomen are wider, and the lateral transverse ab- 

 dominal blotches are much more clearly indicated. 



Description of male. Body, length 1.28 mm., width 

 .47 mm.; whitish with striking broad black lateral 

 borders of thorax and abdomen, black antennal and 

 ocular bands, chestnut-brown outlines of transverse, 



