Vol. xxvi] BirroifOLOciCAL news. 149 



some indication of paradtim but the eg;^ failed to give up 

 any parasites. Wlien placed in the presence of chinch bug eggs 

 the females thaw but slight interest in the eggs and do not 

 become excited when they come in contact with them. The 

 length of the aduh life has been found to range from seven 

 to fourteen days when fed on sweetened water. 



As a factor in the natural control of the chinch bug, Ahetta 

 svbflava plays a very insignificant part. The fact that only 

 two paradtes have been reared from the large number of 

 egsfl examined seems to indicate that parasitism of chindi 

 buf eggs by it is accidental rather than natural. 



Preliminary List of New Jersey Acarina. 



By Haeky B. Weiss, New Bnmswkk, N. J. 



The arrangement of the following list is in accordance with 

 Banks' Catalog of the Acarina or Mites of the United Sutes, 

 Proc. U. S. Nat. Mut. 1907. Vol. 32. The list is of course 

 very incomplete, but it is hoped by collections to add further 

 to our knowledge of the Acarian fauna of the state. My 

 thanks are due Mr. Nathan Banks for determinationt made 

 in this group. 



Fminiiy I rrmANYCHUui. 

 BryoMa Koch. 

 B. prafnrii Gannan. Grccnioch. Moore»town. Englithtown and 

 other parts of the ttate. The Clover Mite. Feed* on clover 

 and foliage of fruit trees. 



T«tr a n yc haa Dufoar. 



T. tMcolor Bks. West field. 7-23-14, and other parts of aUte. Tak- 

 en on apple, tilver maple and other plants. 



T. bimacvlattts Harvey. Tbrottghout the state. The common 

 "red tpider** of greenhoosea. Attack* roae*. carnations, palms, 

 violets and many other plants grown under glass. Quite a 

 pest some seasons on various outdoor plants. 



T. pOoMa. Newark, on fruit trees. E. L. Dkkerson. 



Family TaoMMlNllkAK. 



MicrotrombidhHS Haller. 



If. locustarum Walsh. Occurs upon eggs, nymphs and adults of 



i{rd>>li< uppers. 



