52 REPORT OF NEW JERSEY STATE MUSEUM. 



the State. Sometimes it occurs in bureau drawers among linen, 

 where its appearance excites apprehensions of parasites. They can 

 be easily distinguished from the slow, crawling parasites by their 

 rapid gait and long feelers. Naphthaline or camphor will keep them 

 out, or drive them off where they have become established. 

 T. purpurea Aaron. Taken near Philadelphia. 



ATROPOS Leach (CLOTHILLA West). 



A. pulsatoria Linn. Occurs through- 

 out the State. This is one of 

 those forms known as the 

 "death watch" from the belief 

 that it produces the ticking 

 sound often heard in old 

 houses during the quiet of the 

 night, and it was supposed to 

 portend the death of one of the 

 inmates. It has the same gen- 

 eral habits as "T. divinatorius." 



MYOPSOCNEMA End. 



M. annulata Hagen. Recorded from 

 the Eastern States. 



HYPERETES Kolbe. 



H. tessulatus Hagen. Recorded 

 from Maine to Kentucky. 



Fig. ii. A book-louse, Atropos sp. . This 



represents the form commonly found 



in houses. 



DORYOPTERYX Aaron. 

 D. palhida Aaron. Philadelphia, New York and District of Columbia. 



LEPINOTUS Heyd. 

 L. inquilinus Heyd. Throughout the United States. 



Sub-family 



OCELLATARIA Weber. 

 O. gravinympha Weber. Described from Pennsylvania. 



AMPHIENTOMUM Hagen. 

 A. hageni Pack. Philadelphia; eastern United States, generally. 



PTERODELLA Kolbe. 



P. pedicularis Linn. (Caecilius) United States, generally. 

 P. rufus Walsh. Eastern United States. 



