224 



meiit made by him at the October meeting to the effect that 

 this Jassid egg-parasite had been introduced to Hawaii by 

 ]V[r. Koebele. He had recently received a letter from Dr. 

 Perkins, in which it was stated that Mr. Koebele did not try 

 the introduction of any leaf hopper egg-parasites from Mexico 

 at the time mentioned, and that this species of Gonatocerus 

 must have come of itself, probably along with its host. 



Tyroglyplius longior infesting flour. — Prof. Illingworth 

 reported having recently received a package of flour that had 

 been standing for some time, and was swarming mth these 

 mites. After keeping the flour for a few days in the labora- 

 tory the pest became noticeably less, and it was found that 

 one of the large predaceous species was rapidly devouring them. 

 Tiiis pest has a great variety of food substances, such as dried 

 moats, cheese, cereals, drugs, dried fruits, bulbs, etc. They 

 are said to attack raw sugar, among other things, but ]\Ir. 

 iJJingworth had not ol)served them in this food in the Islands. 



The cadelle (Tenehroides maiiritanicus) destroying paper. 

 — Prof. Illingworth reported having recently had his atten- 

 tion called to the work of the larvae of this beetle on botanical 

 drying blotters, by ]\Ir. J. F. Rock. 



The blotters had been piled up for some time and the 

 larvae had worked their w^ay in around the edges, in some 

 cases three or four inches. Apparently their main object in 

 entering the paper was to find a suitable place to pupate. In 

 ccnstructing the pupating cell the larvae chewed up the paper, 

 forming cocoon-like nests, which fastened the sheets together. 

 In many cases the borings had extended right through the 

 sheets. 



This is a widely distributed grain beetle, though the larvae 

 are often predaceous. Their habit of boring into the wooden 

 walls of the grain bins, to pupate^ suggests a reason for them 

 selecting the stack of paper for this purpose. 



Xo grain of any kind was in the room where the beetles 

 Avere found, though thej^ possibly were feeding on some of 

 the nuts or seeds of the botanical collection. He had p7'e- 

 vi'iusly reared this species from Brazil nuts. 



