New genera of Tyrannidae and Turdidae, and new forms of Tanagridae and Turdidae

(1)

VOL. _XVIII, PP.

211-214 OCTOBER

17, 1905

PROCEEDINGS

OF THE

BIOLOGICAL SOCIETY OF WASHINGTON

NEW GENERA OF TYEANNIDJ5 AND _TURDID.E, AND

NEW FORMS OF TANAGRIDJS AND TURDID.E.

BY EGBERT RIDGWAY.

Bypermission of theSecretaryoftheSmithsonianInstitution.

Platytriccusgen. nov. (Tyrannidae.)

SimilartoPlatyrinchusDesmarest^*buttail relatively

much

shorter (but little

more

than halfas long^aswing),wing relativelyshorter

and much more

_rounded,the longest primaries exceeding ^distalsecondaries

by

^not

more

_(usually

much

less) thanhalfthe length oftarsus,

and by

^less^than one-third the length oftail,the tenth (outermost)primarynot longerthan third (usually shorterthanfirst); tarsus nearly^toquite one-third^aslong aswing,

much

_longer thanmiddletoewith claw, nearly^toquite twice^as long^asexposed

culmen

; feathersofchin withoutbristly points.

Type^,PlatyrhynchuscancromaSclater.

(irXarfa,flat,wide,broad,

and

rpticKos,a small_bird.)

Species: Platytriccuscancroma_(Sclater); Platytriccusalbogularis (Sclater);

Platytriccusmystaceus(Vieillot); Platytriccus insularis(Allen); Platytriccus bifasciatus (Allen). Probably^also ^the following,which, however,^I have notseen^: Platyrhynchussenex Sclater

and

Salvin; Platyrhynchusgriseiceps Sal vin;Platyrhynchusflavigularis Sclater,

and

Platyrhynchus^saturatusSalvin

and Godman.

*PlatyrinchusDesmarest,^Hist.^Nat.Tangaras, Manakins,^etTodiers,1805, livr.4,text to pi. 72.(Type TodusplatyrhynchosGmelin). Platyrhynchos(emendation)Vieillot,Analyse, 1816,39. Platyrhynchus (emendation)Swaiiison, Zool.Illustr., ser.4,i,1820._pi.VZ.Platy- rhyncusDescourtilz,Orn. Brs.,^1856.

Monotypic, the onlyknown_species_beingPlatyrinchusplatyrhynchos(Gmelin).

40 PROC. BIOL.Soc.WASH., VOL. XVIII, ^1905. (211)

(2)

212 Ridgway New Genera

_of

Tyrannidfe and Turd MM,

^etc.

Haplocichla* gen. nov.

Nearest Mimocichla Sclater but tail relativelyshorter (not longer than distancefrom

bend

^of_wingtoendof secondaries)

and

lessstronglyrounded (nearly even), eyelidsnormallyfeathered,

and

with nowhite onrectrices, but

wing

^with

an

_elongatedwhitepatch involving outer

web

oftwoinner most_greatercoverts.

Type. Turdusaurantius

Gmelin =

Haplocichla^auranfnt.

Chlorospingus

^zeledoni sp. nov.

Type from Volcan deÎrazii,^Costa^Rica,^10,500^ft.âlt. ^No. ^199,498,Û.^S.

National

Museum,

c? ad.

May

^20, ¹⁹⁰⁵^; ^R. Ridgway.

Similarinpattern of coloration^toChlorospinguspileatMs Salvin,butcolor ofchest, sides,

and

flanks pale yellowish ^olive,not _distinctlycontrasted with the pale gray of throat

and abdomen

_(instead _{of bright}olive-yellow, strongly

and

abruptly contrasted with gray of

abdomen,

etc.),oliveof back,

etc., rather _duller,

and

black of

head

less intense _(slightly

more

_slaty).

Young

very ^different ⁱⁿ ^color from that of C. pilcatiis, the back, etc., grayish olive (insteadofolive-green),theground^colorof underparts pale brownish gray instead of olive-yellow.

Higher partsof volcanos of Irazu

and

Turrialba, Costa Rica, ^at upper limitofforest

and

lowerportion of ash-cones (altitudeabout 9,000-10,500 feet.

This_speciesisfoundinthe

same

localitieswithC. pileatus,both on Irazii

and

Turrialba; consequently, there being no question âs ^to îts being differentitmust,notwithstandingthe character of thedifferences,be given specificrank. Thereîsaconsiderableseriesofthisformin the CostaRican National

Museum,

^thatⁱⁿ^the^collection^of^the^U.^S.^National

Museum

con sistingofeleven adults

and

one

young

^birdⁱⁿ^firstplumage.

I refer to thisform with

much

^{doubt a}singlespecimen (an adultmale) obtained

by me

on theVolcano of Turrialba

May

^2,^1905. ^This ^differs

fromallothersingreater length of the^tail (which measures^67.5

mm.,

^the

maximum

of fourmalesof true C. zeledonibeing65,the

minimum

61

mm.

and

ofsixfemales 64

and

55respectively),

and

inthealmosttotalabsence of

any

^olivetingeonthe underparts,whichare of a nearlyuniform_{pale gray,} only^the^sides

and

flanksbeingdistinctlytingedwith_paleolive-green.

The

back,etc.,arealsovery

much

duller

and

_grayerolive-green.

Named

for

Don

JoseC.Zeledon, ofSan_Jose,CostaRica,

my companion

during

many

pleasant

and

successful collecting trips inCostaRica.

Phcenicothraupis alfaroana sp.nov.

Type from Miravalles, Guanacaste, Costa Rica. No. _199,961, U. S.

National

Museum,

c? ad. August23, 1895; C. F.

Underwood.

Most

likePhcenicothraupis rubra (Vieillot), of Venezuela

and

_Trinidad, butduller in color,the adultmale with rump, uppertail-coverts,

and

_wings

much

lessreddish (browner),

and

red of underparts paler

and

_passinginto reddish grayposteriorly,the adult female with _upperparts

much

_grayer

* 'A7r\6vs, simple, plain^;idx^, thrush-like bird.

(3)

Rid-gway New Genera

_of_Tyrannidas

and

_Turdidse, etc.

113

(light olive),

and

_underparts

much

less fulvous _(pale grayish buff tinged with grayish^oliveonchest, sides,flanks

and

undertail-coverts);wing,bill, tarsus,

and

middletoe longer,^tailshorter.

Adult male _(two specimens). Wing,^92-95 ^(93.5); ^tail,^71-75.5 ^(73.2);

exposed culmen,17.5; tarsus,23-24.5 _(23.7)_; middletoe, 15.5.

Adult female (two specimens).

Wing,

^89-91.5 (90.2); tail,69-72_(70.5);

exposed culmen, ^17.5-19 (18.2); tarsus,24-25 _(24.5); middle _toe,14-14.5 (14.2)*

Thisform isvery^distinct from

any

^{otîer}ôfîts ^Central

American

con geners,

and

requires comparison only with P. rubra ofVenezuela

and

Trinidad,fromwhich itiseasilydistinguished

by

the charactersmentioned above. Inadditiontothespecimensⁱⁿ^the^collection^of^the^U.^S.^National

Museum

Ihave

examined

tenmales

and

sevenfemalesinthecollectionof theNational

Museum

of CostaRica.

Named

for

Don

Anastasio A1faro, Director ofthe National

Museum

of CostaRica, to

whom

^I

am

indebtedfor

many

^courtesiesduring

my

^visit^to

that country, not the^leastofwhich ^is his genial

and

_helpful

companion

shiponseveral collectingtrips.

Mimocichla

_rubripes

eremita

subsp. nov.

Type from

Swan

Island, Caribbean Sea. No. _111,219, U. S. National

Museum.

cTadult. February4,1887; C. H.

Townsend.

SimilartoM._rubripes_rubripesbut_averaging_larger,with shortertoes

and

whiteofchin

and

malarregion usually

more

extended.

Catharus

frantzii

omiltemensis

subsp. nov.

Type,from Omilteme,Guerrero,southwestern Mexico. No._185,751,U.S.

National

Museum,

Biological Survey Collection.

May

^19, ^1903; ^E.

W.

Nelson

and

E. A.

Goldman.

Similar to C.frantzii a^Itⁱcola (Salvin

and Godman)

^but underparts de cidedlypaler,with

whole

throatwhitish

and

whiteof

abdomen

_purer

and more

extended.

*MeasurementsofaseriesofPlmmcothraupis rubraare as follows:

Adultmale_(tenspecimens). Wing.^88-94.5(91.5);tail,73-79(76.6);exposed culmen, 15.5-17.5 (16.1);tarsus, 22.5-24(23.2);middletoe,13.5-15(14).

Adult female (two specimens) Wing,^85-88.5(86.7);tail,71.5-72.5(72);exposed culmen, 16-17(16.5);tarsus,21.5-22.5 (22);middle toe,13-13.5(13.2).

New genera of Tyrannidae and Turdidae, and new forms of Tanagridae and Turdidae

211-214 OCTOBER

PROCEEDINGS

BIOLOGICAL SOCIETY OF WASHINGTON

NEW GENERA OF TYEANNIDJ5 AND TURDID.E, AND

NEW FORMS OF TANAGRIDJS AND TURDID.E.

BY EGBERT RIDGWAY.

much

more

and much more

by

more

much

and by

much

culmen

and

and

and

and Godman.

212 Ridgway New Genera

Tyrannidfe and Turd MM,

bend

and

and

wing

an

web

Gmelin =

Chlorospingus

Museum,

May

and

and abdomen

and

abdomen,

and

head

more

Young

and

and

same

and

Museum,

Museum

and

young

much

by me

May

mm.,

maximum

minimum

mm.

and

and

and

any

and

The

much

and

Named

Don

my companion

many

and

Museum,

Underwood.

Most

and

and

much

and

and

much

Rid-gway New Genera

and

113

NEW GENERA OF TYEANNIDJ5 AND _TURDID.E, AND