A new species of Callichroma from Texas

PROCEEDINGS

'

OF THE

ENTOMOLOGICAL SOCIETY

OF WASHINGTON

VOL. XVI

1914

Xo.

3

Two HUNDRED AND SEVENTY-FIFTH MEETIXC, MARCH

5, 1914.

The

_following

_program was

_presented:

VariationsinInsectsand theirTransmission Nathan Banks' Method ofFumigating Imported^Seed

E. R. Sasscer and Dr. LouA. Hawkins²

A new

_speciesofCallichromafrom Texas W. S. Fisher

A

Revision of the North American _Species of the Braconid genus

Habrobracon R. A.

Cushman

Secondary andTertiary Sexual Characters ⁱⁿMuscoid Flies and their

Classificatory Value Charles H. T.Townsend

At

theconclusion ofthe

program Mr.

^{C.P.AlexanderofCornell}

University addressed the _Society

on

his studies of the family Tipulidse,

and Mr. M. D. Mitzmain gave an

^{account of hisrecent}

work

inthe Philippine Islands

on

the insect transmission of surra in stock animals.

A NEW SPECIES OF CALLICHROMA FROM ^TEXAS.

BY W.

S. FISHER, BureauofEntomol(n/.

Callichroma schwarzi_{n. sp.}

Male: Rather dull in lustre and of a greenish-blue ^color throughout above, same beneath but more shining; abdomen rufo-ferruginous; an- tennae, ^all of the femora, ^tibiae and tarsi black. Prothorax as in ('./<//- caturn Lee., withfront deeplyconstricted, two elevated spaces just back of the constriction and one long transverse elevated ridge on the poslc-

1Withdrawn by ^author.

2Withdrawn forpublication elsewhere.

3

To

be _publishedlater.

97

98

PROCEEDINGS ENTOMOLOGICAL

SOCIETY

rior area; with unequally ^{transverse rugse;} densely and _{finely punctate,} with short inconspicuous black ^hairs. Prosternum concave and trans- versely plicate. Antennae twice the length ^ofthebody. Elytrastrongly taperingfrom baseto apex,tipsseparatelyrounded,sides slightlyarcuate;

clothedwithshortinconspicuousashy grey pubescence; denselyand_finely punctate exceptsmall space at base^{close to}thesuture withcoarserpunc- tures. Under surface covered with ashy grey pubescence. Scutellum triangular, longerthan_wide,grooved

down

the middle, irregularly coarsely punctate. Femora offront and middle _{pair of legs} short and thickened, posteriorfemora_long,reaching^alittlebeyond^thetips ofthe_{elytra,slightly} thickenedexternally. Posteriortibiaenearly aslong as the femora, arcuate and flattened. Xotch ofthefifth ventral segment parabolic. Length ³⁵

mm.

;widthatbaseofelytra⁹

mm.

Female: Differs from the male inbeing smaller, antenna; not reaching the_{tips of}the_elytra, prothorax^{similar tothat of C.} splendidumLee.,not transversely rugose at center but densely finely punctured, and _slightly rugosetowardthesides. Elytra withtwoinconspicuous^transversebands

ofavioletshade, one_{just in} frontand theotherjustbackof the middle.

Posteriorfemora_slightlyarcuate. Posteriortibieenearly straight. Length 28

mm.;

width, ⁷

mm.

Habitat:

McAllen,

^Texas.

Type and

allotype Cat.

No.

18237 U. S.

N. M.

_Paratypes in the author's collection.

Described

from

four specimens,

two

females

and two

males, received

from D. K. McMillan

with the following note, "Col- lected

May

22, 1909,

on

the blossomsof Cissus incisa,rather

com- mon and

a

number

of

mating

pairs

were

_crawling

among

^the

foliage."

This _species is allied to C. plicatum ^Lee.

but

is distinguished

from

that

and

the other _species

found

in the

United

States

by

having ^dull greenish-blue elytra

and

all of the

femora

black.

Named

for E. A. Schwarz.

The

following tablewill assist inthe identificationofthe_species

found

north of Mexico.

All ofthe femoratestaceous tippedwith black ¹

All of thefemora_entirely black 2

Frontandmiddle femorablack, the posterior ferrugineoustipped with

black, elytra blue ^{: cobalt}iimm Lee.

1. Thorax and_elytra varying fromblue to green, thoraxwith _{a cop-}

pery hue splendidum ^Lee.

Thorax andelytra bright green, without coppery^hue. Male with fifth ventral deeplybroadly emarginate smaragdinum Casey Male withfifth ventral parabolic, not emarginate pliculttm ^Lee-.

2. Elytravelvetyblack melancholicum Bates

Elytra greenish-blue ^sclnrnrziFisher.