3 ENTOMOLOGICAL SOCIETY 



branches of the Monterey Cypress from the famous grove at 

 Cypress Point, near Monterey, California. The natural distribu 

 tion of this tree is restricted to a few acres in this one locality, 

 but it has been extensively transplanted throughout Western 

 California for hedges and ornamental purposes, thus extending 

 the range of the beetle and enabling it to acquire the habit of at 

 tacking other species of cypress and also the redwood. While 

 the Phloeosinus does not seem to kill the trees and is compara 

 tively harmless in the native grove, it has become a destructive 

 pest under the influence of its new environment. The adults' 

 habit of attacking and killing living trees and of feeding on the 

 bark of living twigs is a characteristic which has not been ob 

 served in any other species of this genus. 



Dr. Hopkins also showed the work of a species of Hylesinus 

 in Red Fir from Port Townsend, Washington. This species 

 has previously been found in White Fir. 



Mr. Marlatt noted that the common Dog-day Cicada ( Cicada 

 tibicen Linn.) had given evidence of an important fall brood. 

 Quantities of these insects had issued from the I5th of September 

 into October. He had found on a morning three or four freshly 

 emerged insects, not yet hardened, on the trunk of a single tree, 

 and that under many trees in the Department grounds, and on 

 his own premises, this late emergence had been in considerable 

 numbers, indicating a really important fall brood. 



Dr. Dyar showed slides of the four larval stages and pupa 

 of Dixa centralis Loew, with sketches of the larva. The larva 

 is a surface feeder in stagnant pools and suggests Anopheles 

 when it goes wriggling across the surface of the water. It has a 

 sessile breathing apparatus as in Anopheles. The habit of the 

 insect is to reach the edge of the pool or some floating object and 

 squirm up to the very edge of the water film. It is furnished with 

 five pairs of false feet, crowned by hooks, on abdominal seg 

 ments i, 2, 5, 6 and 7 respectively. These enable it to climb up 

 on the object it rests on to the very edge of the water. The 

 larva rests curved like the end of an ellipse, and it progresses 

 with the end of the loop foremost. This end is composed of the 

 third and fourth abdominal segments and they are practically 

 hairless. Long hairs arise from each end of the body which 

 serve to hold the head and tail in position in the water, keeping 



