Vol. XXvi] ENTOMOLOGICAL NEWS. 223 



Red cedar (Junipcrus virginiana; no injury) ; Quince (Pyrus cydonia; 

 not bad) ; Beech (Fagus sp.) ; native plum (Primus/ umbellata; not 

 bad) ; Hawthorn (Crataegus? flava) ; Chestnut (Castanca aincricana 

 var. ; slight) ; Box Huckleberry (Gaylussacia; 3 bushes out of 35 ex- 

 amined) ; Acacia (Robinia pscudacacia) ; Hawthorn (Crataegus/ par- 

 vi folia) ; Mountain Laurel (Kalmia latifolia) ; Willow (Sali.r) ', 

 Blackberry (Rubits z'illostts etc.; on second year growth); Alder (? 

 Alnus sp.) ; Raspberry (Rubns strigosus var.; on second year stems; 

 also R. occidcntalis var.) ; Blueberry ( V actinium virgatum; old wood) ; 

 Crab apple (Pyrus baccata var.) ; Maple (Acer dasycarpum; A. sac- 

 charinum) ; Birch (? Be tula sp.) ; Sycamore maple (Acer? pseudo- 

 platanus) ; Ash (Fraxinus sp. ; large wounds) and Dewberry (Rub us 

 trivialis) . 



Trees with herbaceous stems or with thick sap seem to be avoided 

 by the mother cicada, as in the case of certain maples and the pines and 

 spruces. 



Additional Notes on Anasa tristis De Geer (Hem.). 



At Blacksburg, Virginia, July 31, 1901, some squashes in a garden 

 at the Virginia Experiment Station were found to be badly infested 

 with this insect. The eggmasses contained from four to thirty eggs, 

 but occasionally an isolated egg was found ; they were on either sur- 

 face of the leaf, usually the lower surface. In two masses which had 

 hatched all the exit-holes were in the same end of both the eggs and 

 the mass. On August 6 an adult locustid was observed eating the 

 eggs of the bug; three eggs were eaten in succession. This fact had 

 been formerly suspected. When first hatched the antennae, head and 

 thorax are red, changing after two hours to black. 



Duration of the Pupal Stage of Adalia 15-punctata (Col.). 

 A full grown larva of this species obtained from an apple tree at 

 Blacksburg, Virginia, June 25, 1901, and fed in confinement upon aphids, 

 attached itself to a leaf by the end of its abdomen at about 2 p. m., 

 June 2.8, pupated about 8 a. m., June 30, and emerged as an adult about 

 eight o'clock July 4 following. When disturbed, the pupa erected itself 

 violently, no doubt a reaction against parasitism. 



Leptinotarsa 10-lineata (Say) (Col.). 



I noticed a pair of these beetles apparently mating on August 19, 

 1901, at Annapolis, Maryland; larvae were then numerous on potatoes. 



A Predaceous Enemy of Macrodactylus subspinosus (Col.). 



At Blacksburg, Virginia. June 27, 1901, 1 observed an adult Asilid 

 with an adult of this beetle impaled on its beak. On June 16, sub- 

 spinosus was noted as having been very injurious to some cultivated 

 cherries; the foliage was simply riddled with small irregular holes, 

 while the fruit was badly eaten into, leaving little islands of the outer 

 surface standing here and there over the circumference. 



