168 ENTOMOLOGICAL NEWS. [June 



Lower part of superiors grey brown, with white bar extend 

 ing entirely across the wing. Black spot of upper side ap- 

 pears enclosed in oval of brown. A second oval baud enclose 

 the first. Lower part of inferiors generally brown, becoming 

 paler towards exterior margins. Wing traversed by band of 

 dark brown, extending from costa to inner angle, across middle 

 of wing. Several paler bauds mark wing along onter margin. 

 A black spot appears in discoidal cell. 



^^. yaparogosa is nearest to M. lamachm. Hew., differing in 

 color and the arrangement of bars of upper surface. The white 

 bar is also absent in lauiachus. On the under side the ar- 

 rangement is totally different, besides the absence of a white 

 bar in laniachus. Lamachus also has several ocelli and spots 

 on under surface of superiors, while the brown ovals are 

 absent . 



Habitat : Xeiva, Tolima, U. S. Columbia. 



Siseme nigrescens, sp. nov. Expands 1 3-16 in. Upper side 

 of both wings black. On the superior wing a bar of very faint 

 white spots extend from costa to inner margin. Another bar 

 of the same faint marks runs parallel to outer margin. In- 

 feriors marked with two red spots near inner angle. Under 

 parts of superiors black, with faint marks of upper side devel- 

 oped into well-marked white bars, the exterior row being 

 made of separate spots, while the inner bar is solid. Base and 

 inner margin of inferiors blue grey suffusion, passing to black . 

 A decided white bar traverses the wing from the anterior mar 

 gion almost to inner angle, while a row of faint spots, grey in 

 color, runs parallel to outer margin. Two red spots near inner 

 angle. Exterior margin tipped with white. Body above 

 and beneath black, with abdomen grey. 



Under parts] resemble 8. caudal is, Bates, from which, how 

 ever, it differs entirely. 



Habitat : Neiva, Tolima, U. S. Columbia. 



THE. CASTLE-BUILDING SP1DLR LYCOSA D0MIFEX) 



BY J. L. HANCOCK. 



The length of the adult female spider varies from sixteen to 

 twenty-one millimeters (approximating three-quarters of an 

 inch). Using the largest of these for a type specimen, the 

 width of the abdomen is eight ; the cephalothorax is nine in 



