248 



THE AMERICAN ENTOMOLOGIST. 



Grape-Tine I,eaf-gall— .4. A. Hilliard.. BrigUon, 

 His.— The numerous green fleshy excrescences on the un- 

 derside of the leaves of your Cliuton Grape-vine which 

 we represent herewith, (Fig. 184,) are galls caused by the 



C lor— Green 



Ciape k if ( ill lou e The best w ly of getting iid of 

 the I di c I td le i\ts is to pluck them a soon as the^ 

 show 1,11 ol the galls but their im lease is midi very 

 1111 ciliiii l)^ numeious ^,^nmbal insect whuli prey 

 upon tlu ,ill mikei There weie pieMiig upon the 

 spumuiib \ou s( ut mimeious woolj laivv ot i genus 

 (s ,„„ , ) of small dull colored I id\ bud two Lice 

 wuip, Imi numeious whitish m ingots whuli hi\( 

 suneconti i 1 II i iq \Mtli tw Ml [U ]t it 



the tul 111 I Ml I vMii h I I II I III nil / 



( p/s ot til I \\ \\ 111. Ill] 111 I 1 I I \ r 



sural puK I / i iiidlith tu J lull ,1 \M1 pill 

 men 1 tin In i li lUs Howei bu^.i^lio 13b b) miptlur 

 lilt wliuli I mill 111 the opinion given on pi^e IK) that 

 till bu„ IS V I uiiubil This gall occuis mo t ibun 

 dmtlvontlK Clinton grape vine, but i hkewi eionudon 

 othci V uieties of the I rost Grape such is thi 1 lyloi, 

 Huntington and Delaw ue on dl three of which vi 

 iieties we have fouii 1 ii ili |i iit \ ii J li 1 u i 

 which foims the ,, ill » i in i I iil I i / // m 

 iili/ohmhyDi Fit h 1 N w "i 1 1 lli ii hit 1 not 

 belon, t( tl It (1111 Ui shuiKi t Ml 1 1 II 



mid n ml i tiii^, obseivations nil I ' i llii 



ill I Ml I ill 1 1 it the type of i, in \\ l i 



lut 



A\ 



1)1 Mumer 

 U11U-, point 



lopr 



pliti uioiiiil il till li u L UI 1111 iLiliiiL utiues oil 

 ( I ipi 111 ects but we will siy heie thit Di 

 sliuiui 1 unfoitunite in gnnding out new geneiaand 

 111 w timilns toi he has pioposed i new fimilv and 

 ^mus {Lpih aphis) foi the lommon Apple tree Bark 

 louse ( Upih tiis [Myt>ltt<ip)s] concAtformis Gmel ) 

 b isi d upon siiml ii ipptudages which he found on its 

 U , whereas if he liad been better posted he would have 

 I luiwn that these ippendages are chaiacteiistn of al 

 Pii I \cnil \ftt Si Phil January 18h7 



most all Bark -lice, t There has lately appeared a new 

 Grape-vine disease in Europe which has attracted very 

 general attention and has done great damage to the 

 vineyards in many sections. This disease is in the form 

 of little cankerous spots which cut oflf the supply of 

 nourishment and cause the roots to rot. These spots 

 are produced by the punctures of a louse [P/ii/Um-era 

 radatrix, Planchou,) in all respects resembling that 

 which there produces a gall on the leaf very similar to 

 the gall of this country which we have figured; and ac- 

 cording to an article by " J. 0. W," (a signature that 

 indicates good authority ,) which appeared in the Jan. 

 30th number of the Gardener's Chronicle of England, 

 the insect which occurs on the root is actually identical 

 with that which produces the gall on the leaf. 8omc 

 authors, and among them J. Llchtenstein. who first 

 drew attention to this disease, even contend that this 

 European Leaf-gall is identical with ours, and that it 

 has been imported from North America. 



t See Figui-es by V. Signoret of feet of Lccaui, 

 L. Co/rc(C, etc , PI. XI, ~ "■" ■ ■ ■ 

 de France, 4e Serle . 



XI, Toni. Vin, Ai 

 nsects— (r. Faith 



Grape-Tine Insects^^(". Pauls, Eureka, J/o.— The 

 large pale-yellow 8-spotted beetle which has so badly 

 eaten the foliage of your grape vines, is tlie Spotted 

 Pelidnota {Pelidnota. punctata, Linn). It feeds in the 

 larva state on old rotten stumps and roots of such trees 

 as the Pear and the Hickory, and comes out as a beetle 

 about the first of July, in your latitude. The brown 

 insect with a prolongation like the beak of a bird in 

 front, and two yellowish spots on the edge of the back, 

 which has punctured your tender grape steins, and in 

 many instances caused them to turn brown and /yilt, is 

 a U-QO-\\n\^yin^^(Enchophyllum hiiwtatmn), which occurs 

 .|uitc' eniiiinoiily on the Red-bud and other trees. Its 

 laMiriic liuiue, however, is the Hop-trea or Tree-tre- 

 foil [PI, I,. I iiifidiata), on the twigs of which it Is very 

 abundant in all its stages, from the smallest larva to the 

 fnll-grown bug. We have sometimes seen them ranged 

 longitudinally on such a twig, like a' file of soldiers in 

 close military order; and under such circumstances a 

 white waxy matter exudes copiously from the bark, 

 which attracts tree-ants like the hoiieydew of the Plant- 

 lice. In English this species may Be called the Two- 

 spotted Tree-hopper. 



T. W. (}., Georgetown, ft— The spotted heelle sent b\ 

 you is the same species {Pelidnota pimrtatii) iiii'iitioned 

 above. 



JHuseum Pests— CAa«. P. Faulkner, JSrnl(/e/>oH, 

 Conn.— The beetle infesting your collection of insects is 

 not the Anihrenus varius nor A. museorum, but the com- 

 mon Bacon-beetle (Dermestes lardarms), which has the 

 same misi'liievous propensities as the other two. Its 

 larva, however, is much more easily captured than that 

 of the Antlirrnu.t, not having the same peculiar gliding 

 and dodging motions . In the present number we pub- 

 lish a letter tVom Dr. Le Conte, on the best means of 

 preserving a collection from these pests. 



Wbeat inag:g'ot8— «. K. /'au^wr.— The pale green 

 slender maggot, one-fourth of an inch long, which 

 blighted about one in fifteen of the heads of your 

 wheat, by devouring the substance immediately above 

 the upper joint, was undoubtedly the larva of the 

 American Meromyza (Meromyza Americana, Fitch), a 

 full account of which, with figures, you will find in the 

 Missouri Entomological Report, pp. 153-61. 



