JASSIDAE.

=Xestocephalus pulicarius= VanDuzee. One specimen of this form

taken at an electric light at Charleston, July 28.

=Xestocephalus tesselatus= VanDuzee. Collected from elm

leaves at Charleston. Quite rare.

=Hecalus lineatus= Uhler. Not common. Nymphs more numerous than

adults during August. Swept from rank growing grasses near the

Mississippi River at Hannibal.

=Parabolocratus viridis= Uhler. Recorded from Springfield,

Columbia, Chillicothe, and Charleston. Observed feeding on grass,

sweet clover and sorghum.

=Platymetopius acutus= Say. Only one adult collected. Swept from

weeds near a bog at Charleston, July 28.

=Platymetopius frontalis= VanDuzee. Very common throughout the

state. Attacks clover, alfalfa, and grasses. Also taken from woody

shrubs.

=Deltocephalus nigrifrons= Forbes. Generally distributed in all

sections of the state. Very abundant during October. Known to feed

upon clover, alfalfa, wheat, many grasses including blue grass,

and several weeds. Attracted to lights at night.

=Deltocephalus weedi= VanDuzee. Quite common on weeds along

roadsides and shady places. Collected at Lutesville and

Charleston during the late summer.

=Deltocephalus flavicosta= Stal. Quite abundant during middle

and late summer, principally in southern part of state. Swept

from native grasses and weeds. Occasional specimens taken from

wheat.

=Deltocephalus sayi= Fitch. Recorded from grass lands in North

western parts of state in September. Quite common in blue grass.

=Deltocephalus inimicus= Say. Common in all parts of the state.

All stages taken from May to November. Food plants include wheat,

oats, alfalfa, clover, cowpeas, timothy, blue grass, other native

grasses, and weeds.

=Deltocephalus albidus= Osb. & Ball. Recorded from the

collection of the Experiment Station at Columbia.

=Deltocephalus obtectus= Osb. & Ball. Quite scarce. Recorded

only from Mississippi County. Near swamps.

=Deltocephalus misellus= Ball. Captured but one adult, in a corn

field near Mississippi River at West Quincy.

=Deltocephalus productus= Walker. Rather scarce. Swept from

clover and weeds at Stanberry.

=Deltocephalus debilis= Uhler. Quite common on grasses in rye

and wheat stubble fields about Hannibal and West Quincy.

=Athysanus exitiosus= Uhler. Occurs throughout the state. With

the exception of Draeculacephala mollipes it is the most common

jassid of northwestern Missouri. Adults present at all seasons of

the year. Food plants include wheat, oats, corn, alfalfa, grasses,

and weeds.

=Athysanus bicolor= VanDuzee. Numerous in southern part of

state, especially in low or bottom lands. Feeds upon many weeds,

grasses and alfalfa.

=Athysanus obtutus= VanDuzee. Not common. A few adults taken

from sweeping wheat fields in the early spring. Recorded only

from Mississippi County.

=Athysanus plutonius= Uhler. Rather rare. Occasional specimens

swept from wheat in Scott and Mississippi Counties.

=Athysanus curtisi= Fitch. Only one adult captured sweeping

weeds at Hannibal.

=Eutettix clarivida= VanDuzee. Recorded from Lutesville and

Charleston, from millet and grasses. Nymphs numerous during

August.

=Eutettix osborni= Ball. Collected by Geo. W. Barber at Poplar

Bluff, from White Aster, used in ornamental plantings.

=Eutettix seminuda= Say. Rather numerous but not abundant.

Occurring in all parts of the state. Collected principally from

weeds and woody shrubs near swamps. Also from grape vines.

=Eutettix strobi= Fitch. Only one adult captured. Feeding on a

leaf of a willow tree growing in a swamp.

=Phlepsius apertus= VanDuzee. Very common throughout the state,

especially in the southeast section. Occurs in great numbers on

alfalfa and clover upon which crops they must be considered a

pest. Also recorded from grasses and weeds. Most abundant during

July and August.

=Phlepsius irroratus= Say. Very common and generally distributed

throughout the state. Of economic importance, attacking alfalfa,

clover, cowpeas, corn, wheat, oats, grape, many grasses, and

weeds.

=Phlepsius cinereus= VanDuzee. Recorded only from Mississippi

County. Most numerous in early summer. Often taken at lights.

=Phlepsius pallidus= VanDuzee. Collected at lights during summer

months. Generally distributed but not abundant.

=Phlepsius superbus= Uhler. Not abundant. Occasional specimens

captured in Mississippi County.

=Scaphoideus sanctus= Say. Occasional specimens taken in

southern part of state.

=Scaphoideus productus= Osborn. One adult collected at Rodney,

August 25.

=Scaphoideus scalaris= VanDuzee. Quite common. Recorded from

Springfield and Hannibal. Taken only from weeds.

=Scaphoideus jucundus= Uhler. Occurs on rank weeds and willows.

Only record is from Stanberry.

=Scaphoideus immistus= Say. Swept from woody shrubs and rank

grasses about Charleston.

=Scaphoideus immistus= Say. var. minor Osborn. One adult taken

at Charleston.

=Thamnotettix clitellarius= Say. An occasional adult taken in

sweepings from grasses and weeds in southeast Missouri. Also taken

from grape at Columbia.

=Chlorotettix viridius= VanDuzee. A few adults taken during the

summer from grasses and weeds growing in low and swampy lands.

Recorded from Pattonsburg and Charleston.

=Chlorotettix unicolor= Fitch. Rather common in central and

northern parts of state. Collected from willows growing in

lowlands.

=Chlorotettix tergatus= Fitch. One adult collected at

Charleston, September 2.

=Chlorotettix necopina= VanDuzee. Only record is from Charleston

where adults were swept from weeds growing in marshy places.

=Chlorotettix galbanata= VanDuzee. Quite rare. Occasional

specimens taken from weeds growing along roadsides in Mississippi

County.

=Jassus olitorius= Say. Not common. A few adults taken in

southeast Missouri. Observed them feeding upon alfalfa.

=Balclutha punctatus= Thunbg. Only record of occurrence is from

Pattonsburg.

=Gnathodus impictus= VanDuzee. Not numerous. Observed feeding on

grasses and several weeds at Charleston during May.

=Cicadula 6-notata= Fall. Occurs in all sections of the state,

most abundant in northeast. Known to feed upon wheat, oats, and

grasses. Especially numerous during October.

=Empoasca mali= LeB. One of the most common and probably the

most injurious leafhopper. Feeds on a great variety of plants,

shrubs and trees. A pest of field crops, nursery stock, and

orchards. Especially abundant during the summer of 1915 on alfalfa

and clover. In early spring adults have been observed feeding on

wheat, rye and native grasses. Exhibits great adaptability to

changes of climate and host plants.

=Empoasca smaragdula= Fall. Listed by Gillette as occurring in

the state.

=Empoasca radiata= Gillette. Swept from willows growing in the

Missouri Botanical Gardens at St. Louis.

=Dicraneura abnormis= Walsh. Not common. Few specimens collected

from blue grass and around lights at night at Chillicothe, during

September.

=Typhlocyba illinoiensis= Gillette. Noted feeding on rose leaves

in the Missouri Botanical Gardens at St. Louis.

=Typhlocyba obliqua= Say. Very abundant on many weeds at

Springfield during August.

=Typhlocyba trifasciata= Say. Listed by Gillette as occurring in

the state.

=Typhlocyba tricincta= Fitch. Abundant on several ornamental

bushes in Missouri Botanical Gardens at St. Louis. Adults

exceedingly quick of movement. Also collected at Pattonsburg and

Columbia.

=Typhlocyba comes= Say. Abundant throughout the state. A severe

pest of grapes, especially in southeast Missouri. Feeds on a

number of weeds. Attracted to lights at night in considerable

numbers.

=Typhlocyba comes= Say. var. vitis Harris. Occurring on

ornamental shrubs, including rose, in the Missouri Botanical

Gardens at St. Louis.

=Typhlocyba comes= Say. var. scutelleris Gillette. Very common

on Sycamore in all stages, and frequently causing severe

infestations. Nymphs and adults feed on under side of leaves

resulting in small whitish brown spots. Occurs in all parts of

Missouri.

=Typhlocyba comes= Say. var. basilaris Say. One adult captured

by Geo. W. Barber at Poplar Bluff, September 4, from white aster.

=Typhlocyba comes= Say. var. ziczac Walsh. Collected from rose

bushes in the Missouri Botanical Gardens at St. Louis.

=Typhlocyba vulnerata= Fitch. Rather numerous on several

ornamental shrubs growing in the Missouri Botanical Gardens.

Feeds on under side of leaves.

The Ohio Journal of Science. Vol. XVI., No. 2 (December, 1915) · 第 66 / 76 题