1^4 'I'HE CANADIAN ENTOMOLOGIST. 



i2-punctata, has of late been taken by Mr. Lugger around Baltniiore. It 

 is rather curious that the neighborhood of Baltuiiore and Alexandria, with 

 comparatively a very limited commerce, should still have yielded a pro- 

 portionately very large number of imported species. Two species ot 

 Blaps have been introduced and first fomid near those cities, one mortnaga, 

 and another not yet determined. Of B. vwrtisaga a friend said that a 

 bushel could be taken from a single cellar in Alexandria. Another very 

 curious matter is the very sudden spread of insects. When working over 

 the Rhyncophora some years since with Dr. LeConte, every collector was 

 applied to for material, and from Mr. Fuller was obtained a little species, 

 marked Montana, which was named Aramigcs Fullcri, and was then the 

 onlv known specimen. Suddenly, a year or two afterward, specimens 

 were received for determination from all parts of the country, and every- 

 where complaint was made of injury caused by the species, especially in 

 hot houses. How happened it that for ages the beetle was unknown, an 

 inhabitant of some remote locality, and suddenly it should spread all over 



the States ? i, > 



Prof. Lintner said he had known the species since 1S76 ; that year it 



was abundant in green houses. 



Mr. Dimmock had known the species for some years as very destruct- 

 ive to roses in hot houses. 



Dr. Horn said he first obtained the beetle in 1874, or perhaps a little 



pirlicr 



Mr Hulst, referring to Prof. Lintner's remarks on O. kucostigma, had 

 noticed its comparative scarcity on Long Island. The elm beetle was 

 common. Another pest not mentioned was a small insect apparendy of the 

 frog spittle nature on maple. Sometimes the trees were white with it, and 

 many appeared dying off". A species of Chrysops was also common, and 

 seems to have been destroying the pest. 



Prof. Lintner had noticed the same insect ; it is a Coccid, Pulvinana 



innumerabilis. t,j j 



Prof Osborn said it is very abundant on maple. It can be subdued 

 by cutting the infested branches before July. The young go first to the 

 leaves. The female lives until spring, the male dies in the fall. No less 

 than seven diff"erent species of insects prey upon this form. 



Mr Saunders said the insect had appeared in Canada and Michigan 

 in large numbers, the trees being sometimes completely covered. On 

 some trees the larvae of Chilocorus bivulnerus were found feeding on them 



