Page:Mosquitoes, gnats, craneflies, midges and flies of the northern states (IA mosquitoesgnatsc00knobe).pdf/24

 CECIDOMYIA. C. soUdaginis.

l:)ands



wing blackish,

hairy.

On

goldenrod.

stein of

Bright red, with black hair.

C. Itirtipes.

C. chrysopsidis.

C. destructor.

black.

On

Brown.

C. sei-rulata.

C. tritici.

reddish; body with black

in

-^^

Gall Gnat.

Ill

i^ in.



alder.

red

— The Hessian

wing gray,



^

hairy.

On

golden

aster.

black; body tawny, with black rings; wings the stems of wheat, which causes it to stunt in growth.

— The

fly.

wheat midge.

in.

-jV in.





like the last, but

wnigs transparent.

Attacks

the ear of wheat.

forms swellings in the locust stems. Causes the gooseberries to turn prematuie

7-

C. rohiniiV.

S.

C.

y-

C. salicis-rigidcv.

lO.

in.

On

1

eii

and

rot.

willows. C.

albovittata lives

them.

1

1

C. piui-itiopis.

I

2.

C. ornata.

C



Causes the pine cone-like end-huts on willows.

C. strohlloides. in

13-

in.

li'j

ffrossii/ariiC.

trifolii

Attacks the needles of the pine trees. body red wings with five brown spots.

in.

y'^





and C. leguininicola

.

In clover-leaves.

LASIOPTERA. 14.

Z-.

veiitralis.

5-

L.

vitis.

^

J 1

s in.

red

Edged Midge.

blackish-brown, with yellow legs





black head.

On

grape vines.

(22)



front

edge of wing black,