BIRDS—SYLVICOLIDAE—PARULA. 237 
PARULA, Bonap. 
Chloris, Bore, Isis, 1826, 972, (not of Moehring, 1752.) Type, Parus americanus. 
Sylvicola, Swainson, Zool. Journ. HI, July, 1827, 169. (Not of Humphrey, Mus. Calonnianum, 1797, 60; genus 
of land mollusks.) Same type. 
Parula, Bonar. Geog. & Comp. List, 1838. Same type. 
Compsothlypis, Cananis, Mus. Hein. 1850-51, 20. Same type. 
Cu.—In the species of this genus the bill is conical and acute ; the culmen very gently curved from the base; the commissure 
slightly concave. The notch when visible is further from the tip than in Dendroica, but usually is either obsolete or entirely 
wanting. Bristles very short. The tarsi are longer than the middle toe. The tail is nearly even, and considerably shorter 
than the wing. 
The genus Sylvicola of Swainson was established on the Parus americanus in 1827, but both 
this nameand Chloris of Boie, 1826, were pre-occupied. Parula of 1838 has been changed by 
Gray and Cabanis onaccount of the similarity in sound to Parulus of Spix, 1824 ; but, considering 
this difference of termination as sufficient for distinguishing the two names, I do not follow 
these authors in dropping the former. 
The species of this genus have somewhat the habits of titmice, one only however is found 
in the United States. The following synopsis will serve to distinguish them: 
Above blue, with a dorsal patch of yellowish green ; yellow beneath. 
Patch confined to middle of back. Throat pale yellow, with a brown patch. Rest of 
under parts white ; lower eyelid White ...........sccoccsssssecsssecsseesovcsceecsd GMEFICANGA. 
A small dorsal patch. Under parts reddish yellow. No patch on the eyelid... P. pitiayumi.! 
Entire back yellowish green. Throat and breast yellow, with a brown bar across the 
former. Tail unspotted. Belly and superciliary stripe white..............P. mexicana.2 
Comparative measurements of species. 
Catal. Species. Locality. Sex. | Length.) Stretch Wing. Tail. Darra Middle Its claw Bill | Along | Specimen mea- 
No. of wings. | toe. | alone. | above. gape. sured. 
| (ee ee | Me ae RG Ca a 
750 | Parula americana ....| Carlisle, Pa........ 3 4,10) | essccesias 2.48 | 2.02 | 0.66 0.56) 0.16 0.38 | 0050") Dry ceccccnacess 
do. el eee ORS ten eeseve|cte eet AuToilh7266}|[2°50'|neccec|uceeh om fee cess lbe-neee preree Reeeret Fresh .... sess 
2160 |. o]eecees dO} ewisice’ lester Q 3.94 | ccseese 2.38 | 1.90 | 0.64 0.50 0.14 | 0.42 | 0,50 | Dry eeceeeseeres 
Glos il bapeet Op Seequentsced| padode dO% cee seses! | seers 4.50'| 7550)| 2.47 |...... loeecteses||consiale ts Bees Vevaqiene’ Waseticte's Fresh . oi 
10155 | Parula mexicana.....| Mexic0....cccccces|sseces 4°80) |Focmesics 2.58 | 2.20 0.60 0.50 0.16 | 0.44 OLSIE |CDrvassticssteeceels 
TSS; | Rarnlapitiayumy: 2. .|| BYaZiccsesiveseesss|eoccns 32045 |lewinejs stele 2.02 | 1.66 0.60 0544) )' 7 0516: |! 10.40'), °0.500 | Dryicescccte ccna 
’ PaRuLa PiTiAyumt, Baird. 
Sylvia pitiaywmi, Vierttor, Nouv. Dict. II, 1816, 276. 
Compsothlypis pitiaywmi, Cas. Mus. Hein. 1851, 21. 
Sylvia venusta, Tem. pl. col. 293, f. 1. 
Sylvia plumbea, Swainson, Zool. Ill. Il. 1821-’2; pl. cxxxix, 
Parula brasiliana, Bon. Consp. 1850, 310. 
2 ParuLa Mexicana, Bonap. 
Parula mexicana, Bonar. Conspectus, 1850, 21. 
Compsothlypis mexicana, Cas. Mus, Hein. 185], 21. 
