Page:Mosquitoes, gnats, craneflies, midges and flies of the northern states (IA mosquitoesgnatsc00knobe).pdf/22

 PTYCHOPTERA. q.

P.

ru/icijicia. a

in.

^%

black





l)rown spot near shouitler,

body with reddish bands and tliree i)rown bands.



reddish

feet



wing

witii

BITTACOMORPHA. lo.

/>.

clavipes.

-^-^

In.

stripe in middle,

Family the

6.

front of head white chest blacl< and sides white; wing transparent.





RHYPHID/C. Strap Midges.

wiiite

itii

Like Tipulida, without

V-shaped seam on chest-part.

DILOPHUS, Ray Midge. 1.

2.

Z>.

thoracicus.

D. orbatus.

'^

y^

in.

in.



horny

yellow; body and legs black

shiny black with green



RHYPHUS. 1,.

4. T.

/?.

alternatus.

J2 in.

R. marginatus. R. scalaris. ^4^

Family Howing

7.







wing smoky.

tliree stripes,

Strap Midge.

with three brown and three white spots. brown with whitish edges.

gray, with three redtlish stripes; body

honev vellow



BLEPHAROCERID/E.

bands and tail-end black. .et-iciiiged .Midges.

Like mosquitoes, their

larva?

live in

swift-

streams and are there easily seen, as they are a conspicuous black.

Family

8.

nVCETOPHILID/E.

and some upon ripe

much

in.

brown



^r in.



smoky wings.

variation.

fruit.

They

They appear

Fungus Gnats

live often in great

Tiieir larva' feed on fungi, decaying vegetable matter,

numbers together.

In the venation of

like short-legged, strongly-built mosquitoes.

(20)

the

wing there

is

often