TIONS OF TWO NEW SPECIES.

Mr.

Heidemann

presented the following paper^:

NOTES ON NORTH AMERICAN ARADID^E, WITH DESCRIP TIONS OF TWO NEW SPECIES.

By OTTO ^HEIDEMANN.

Dr. A. D.

Hopkins, who

is incharge ^{of the} forest insect inves tigationsof the

Department

of Agriculture, turned overto

me

for identification a lotofhemipterous ^insectsbelonging ^to the family Aradidae.

Some

of these

were

collected

by him on

his trips to Florida

and

Texas, but the greater part of

them by

his assistant, Mr.

W.

F. Fiske, ⁱⁿ

North

Carolina

and

Georgia during the year 1903.

The

collection represents four genera with ^{thirteenwell-}

known

_species. ^In addition there are

two new

_species of the genera

Neuroctenus and Aneurus.*

Subfamily Aradus acutus

_Say.

Two

_specimens.

A

female taken at Tryon,

N.

C., April 17, 1903, beneath the bark ofa rotten

oak

_log; anda male, found at Everett, Ga., April 27, 1903, under dry bark ^{of small} dead oak.

On

^these _specimens ^the cinereous spots

on

the dorsal part of

abdomen

_{show* very} distinctly.

The

_species is not

uncommon,

frequently being found^also around

Washington,

^{D. C.}

Aradus

similis _Say.

Two

specimens from Tryon, N. ^C.,

December

_{14 and April}

9, 1903, beneath bark of elm, girdled ^last spring; ^also under bark ofdead maple. This

common

_species ^varies considerably in size.

Even dwarf

_specimens are found.

Aradus crenatus

_Say.

Six specimens, males and females. All

came

from

Tryon,

N. C.. April 4,7, 17, 1903.

Found

beneath bark of

tulip trees (Liriodcndrori}*^killedlast

summer

; under loose bark ofhickory (log dead one _year),

and

beneath bark of

maple

^trees, girdled one_year. I once took at

Cabin

_{John, Md.,}

numerous

_specimens of

nymphs

^{and adults,}

by

sifting the decaying

wood

of an old tree stump.

Aradus

_niger Stal.

Three

specimens, male and ^female,

winged

^form.

They ^were

collected

by

^Dr. A. D. Hopkins,^atKirbyville, Texas,

November

17, 1902, under dead bark of long-leaf pine

(Pinus

palustris).

This _species

was

for a long time unrecognized, ^but specimens

*The

notes on mode of occurrence are mostly^taken from field notes furnished

me

_byDr. A. D. Hopkins.

162

have _latelybeen

compared

^{with Stal's} type

by

^{Dr. Ch. Aurivilius} ofStockholm, and ^are

now

_preserved in the U. S. National

Mu

seum

collection.*

Aradus cinnamomeus

Panzer.

One

_specimen, a

winged

^{male from}

Tryon, N.

^C.

Common

throughout the spring and _early

summer

on a large pine ^tree,

which

had been _.girdled in

March,

^but

which was

still alive.

Many

specimens

were

_caught ⁱⁿ _{the pitch} that

exuded

from the

wound.

This small

Aradus

_belongs also to the _palearcticfauna.

Aradus

fallen! Stal.

A

_single female specimen, ^{taken at} light,

May

30, 1903, ^at Tryon.

N.

C. This _species has a

wide

_range of distribution.

Originally described from

Rio

Janeiro, Brazil,^itoccurs through out South

America,

ⁱⁿ

Mexico and

the

West

Indies,

and

has recentlybeen recorded from _nearlyallof the Southern States. It is

known,

also, from Indian Territory and the Districtof

Colum

bia.

Aradus breviatus

_Bergroth.

One

_example, a male, ^collected

by

^Dr.

A.

D.

Hopkins,

^on

Taxodium

at Baldwin, ^Fla. This _species seems_quite rare. I

once took

two

specimens from ^thecrevices of the barkof a _living pine ^{tree in}the neighborhood ^of

Washington,

^{D. C.}

Subfamily

Brachyrrhynchus granulatus

Say.

Numerous

specimens from

Tryon, N.

^C.,

March

6 and April

9, 1903^; found on yellow pine ^trees, dead

some

_years, and be neath bark ofdead maples^; on freshpineboards, attracted with other insects by ^the odor of resin; and

on November

_{17, 1903,} beneath bark of chestnut felled last spring. ^It

was

alsotaken at

Savannah,

_{Ga., April 29,} ^{and at} Cornelia, Ga.,

November

22, 1903, beneath dead and dry oak ^bark.

The

_species isvery

abun

dant throughout ^theUnited States.

Neuroctenus simplex

^Uhler.

Many

specimens, mostly from Tryon,

N.

_C.,

March

_9,

Novem

ber _17, 18, 1903, beneath bark of decaying oak logand beneath bark _{of oak,}

which

died last

summer. The

_species

was

also col lected at Saluda, N. C.,

November

_{25, 1903,} in large

numbers

beneath bark of oak trees girdled ^last spring^;

and

at Lakeland, Fla., April 7, 1904, on live-oak. This is the

commonest

_species of theAradids

known

in the United States. Fresh specimens

*Note on Aradtts (Qutlnus) niger ^Stal. By^O.Heidemann. Proc, Ent, Soc, Wash.,iv, No._{4, p.389, 1896-1901}; arid loc. cit., p.411.

WASHINGTON. 163

have the

membranous

_parts of the _elytra silvery-white with a short,dark streakatbase,

sometimes

_running

down

^to the middle and forming an irregularspot.

Neuroctenus pseudonymus

Bergroth.

NetiroctenuspseudonymusBergroth,

Wien

Ent.Zeit.,

xvm,

p. 27, 1898.

One

example, taken ^at Saluda, N. C.,

May

^{20, beneath bark}

ofadecaying^chestnutlog. This _species

was

originally described from

North

Carolina. I have taken it twice in the District of Columbia. It is

more

robustand broader in

body

^than

any

^other of the

North American

_{species of}Neuroctenus.

Neuroctenus _elongatus

Osborn.

Neuroctenus_elongatus Osborn,OhioNaturalist, iv,No. 2.p. 21, 1903.

Six specimens, males

and

females, found at Tr-yon, N. C., April 3, 1903, beneath bark of decaying ^chestnut log. Prof.

Herbert

Osborn

_kindly

examined

oneof the male specimens and identified it as

N.

elongatus, recently described by

him

from one male specimen ^inhis paper on Aradidae ^ofOhio.*

Having now

a series ofspecimens ^of both _sexes, ^I _{give the} followingdescrip tion of thefemale:

9- Anterior process of head reaching veryslightlyover theapex ^of

firstantennal_joint; process of^theantenniferoustuberclesacute_; tubercles behind the eves_quiteprominent. Pronottimtwiceaswideas its length;

posterior margin nearlystraight. Dorsal _{part of}abdomen dark brown, with thelateralmargin^reddishbrown,the posterior edges of thesegments ontheconnexivum a littleraised near theincisures. Lateral lobesof the genital segment,^{as seen}from_{above,slightly}longer than ^themiddle _lobe, which^isobtuselyrounded andnot broader than thelateral lobes. Length

5.5 to 6

mm.

; width _2.25

mm.

Of

this species ^I possess ^also

two

examples from Greensburg, Pennsylvania.

Neuroctenus

_hopkinsi, n. sp.

Darkbrownish,irregularlygranulated. Anterior process ofhead_deeply notched at _tip, reaching the apex ^{ofthe basal antennal} joint; process of the antenniferous tubercles verv acute, divaricate; post-ocular part of head rounded, coarsely granulated, not tuberculated laterally.

An

tennae aslong^asthe posterior margin^ofpronotum,finelygranulated^; the basaljoint stout, third joint somewhat more. slender than theothersand slightly longer, ^the fourth fusiform and _yellowish at _tip with a few long, ^{fine hairs.} Pronotum trapezoidal; the lateral margins slightly sinuated with the anterior angles rounded, somewhat_prominent; poster iormargin straight; surfacecoarsely granulated, ^{alittle raised at}thean-

*The OhioNaturalist,iv,No. 2, p.41, December, 1903.

terior part with two _{small, glabrous spots} near the anterior border.

Scutellum broad triangular, rounded at _tipwith a faint indication of a carina; near the pronotal border is a shallow impression, where the granulesare indistinct, arrangedⁱⁿlongitudinal rows, while the posterior part of the scutellum is very coarsely transversely wrinkled. Corium more _finely irregularlygranulated and _rugulose; the neuration of the membranous _{part of elytra very distinct;} color black with two _yellow spots^at base near the scutellum.and one on each sidenext tothe_tipof corium. Thelateral lobes of thefemale _genitaliaare roundedand exactly in thesame ^linewiththemiddle_lobe,whichistransverseand_onlyalittle

broader than thelateral lobes. Male_genitalsegmentbroad,oval,poster iormarginmore_angulateand the lateral lobes very ^small.

Length ^offemale5.8 to 6.2

mm.

; widthofabdomen 2.8

mm.

Length^ofmale5.8

mm.

; width2.6

mm.

Hendersonville, N. C.,

May

^26, 1903, found under bark of white _{pine, cut} lastwinter.

.

No.

_8048,U. S. National

Museum.

This

_species iseasily distinguished from

N.

_simplex

Uhler and

from

N.

_elongatus

Osborn by

^the conspicuously rugose ^surface of the posterior part of the scutellum and

bv

the differently shaped, slightly longer terminalgenital

segment

of the male. It

seems tobealso alliedto JV.

amplus Champion ^and

^JV.

punctu-

latus Burmeister, but ^differsfrom theformer in having^the post- ocular part of-head not spinous nor tuberculate, and is distin guished from ^{the latter} species

by

the shorter antennae.

I

name

the species ⁱⁿ honor of Dr.

A

D.

Hopkins, who

has contributed

much

to our

knowledge

^{of the} hemipterous ^insects living under bark oftrees.

Aneurus minutus

_Bergroth.

Atieurusminutus _Bergroth,Verh. Zool.-bot. Ges Wien, 1886, p. 58.

Two

_specimens,

male and

female, from Brunswick,Ga.,April 26, 1903^; foundindeserted_galleriesofasmall

Cerambycid

^indead branchesof sumac. This _species is recorded from

Mexico

and the

West

Indies. I havealso seen specimens from

Arizona and

Southern Florida.

Aneurus _simplex

Uhler.

One

_{example,a male,} from

Hoquiam, Washington

^{State. This} species has

more

slender antennae than any other of the _species,

and

_{the apical joint} isvery long.

The

_{original specimen} is re corded by ^Prof. Ph.

R.

Uhler from

New

_England.

Aneurus

_fiskei, ^n. _sp.

Reddish brown; finelygranulate and _rugulose. Head _{slightlylonger} thanbroad; ^frontreaching^tothe middleoffirstantennal_joint, spines of

165

the antenniferous tubercles acute and curved_; part behind _{the eyes} ob tusely rounded,edged ^witha fewfine granules; tubercles laterallyobso

lete. Antennae not_quitetwice the length ofhead; basal_jointvery^stout, broader than the frontal part of head; second joint oval like the basal one, but

much

smaller and not thicker than the two remaining joints, which are cylindricallyformed; third joint nearly equal ⁱⁿlength^to the first; the terminalonea littlelonger than the ^thirdand second together, covered withfine hairs. Pronotum half as long^aswidewithatransverse furrowbefore the middle; the lateralmargins anteriorlyslightlysinuate;

surface veryfinelygranulate, posteriorly rugulose. Scutellum _{nearly as} long^{as broad,}having ^alsothe same _lengthas the pronotum ^inthe mid

dle, more coarsely granulated with^a short, faint carina anteriorly.

The

membranous _part of_elytra rugose and densely granulated, color black;

near the middle of corium runs a transverse, yellowish spot, in some specimensobliterated. Theterminal_genital segment^ofmale convex and long, butextendingbarelybeyond^thegenital lobes.

Length^offemale3.8 to4

mm.

; width i.S

mm.

Length ^ofmale3.6 to3.8

mm.

; width 1.6

mm.

Tryon, N. C.,

May

^21, 1903

(W.

^F. Fiske. three specimens);

Bedford Co., _Pa.,

August

15, 1901 ^; Paris,

Fauquier

Co., Va., July 27, 1898; Berkeley Springs. Va.,

August

^20, 1891 (O.

Heidemann)

^,

and Mount

_Airy, Ga.,

September

^2, 1894 ^(E.

A.

Schwarz). Mr. Fiske's specimens

were

collected beneath bark ofdecaying branches ^of

sour-wood (Oxydendrum} ^and

^alsobe

neath loosebark scales

on

dry branches ^ofsycamore.

The

other material

was

found on dry

and

decaying branches^oftrees.

7ype.-^No.

8049,

U.

S. National

Museum.

This _species has

some

_similarity to

A. montanus _Champion,

chiefly ⁱⁿ the shape of the antennae,but differs in being ^smaller

and

_having the post-ocular part of head not spinous. ^I take pleasure ⁱⁿdedicating ^itto

Mr. W.

F. Fiske.

Mr. Heidemann

_stated, in this connection, ^{that Prof.} Herbert

Osborn

has in preparation a

monograph

of the Aradidae, Dr.

Hopkins

^{asked Mr.}

Heidemann what

constitutes the food of Aradids.

Mr. Heidemann

stated that, so far as

known,

^Aradidae appear ^{to feed}

upon

fungi. Dr.

Hopkins

^{said thatthis, also,}

was

his opinion ^{as to theirfood habits}

and

he did not believe

them

insectivorous.* Dr.

Ashmead

stated that certain Proctotrypid parasites belonging^{to the} genus

Aradophagus

^{infest the} eggs ^of Aradida3.

*A

previous discussion onthissubject^{is to}be found in Proc, Ent. Soc.

Wash.,iv, No._4,July 16, 1901, pp. 390and_391.