1918.] NATURAL SCIENCES OF PHILADELPHIA. 253 



where it rests in the shade. Female specimen flushed from eggs laid 

 on the bare ground on an old path. They measured 1.10 x .84 and 

 1.12 X .86 ins. 



[138.] Stenopsis cayennensis albicauda (Lawrence). White-tailed Stenopsis. 

 [139.] Antrostomus rufus rufus (Boddaert). Rufous Goatsucker. 

 *140. Chordeiles virginianus virginianus (Gmelin). Nighthawk, 



Female, Gatun, October 3, 1911. Bill black, tarsi grayish. 

 One of a flock feeding overhead. 



*141. Chordeiles acutipennis texensis (Lawrence). Texas Nighthawk. 



Male and female, Gatun, December 10, 1911. 



MIOROPODID^. 



142. Chaetura cinereiventris fumosa (Salvin). Smoky Swift. 



Male, Gatun, May 14, 1911. 



One of a flock feeding along the base of a hill over a wild banana 

 plantation. Sexual organs well developed. 



143. Chaetura chapmani Hellmayr. Chapman's Swift. 



Two females, Gatun, July 9, 1911. Iris clark-brown, bill black, 

 tarsi sooty-brown. 



Two of a large flock feeding over the jungle below Gatun dam. 

 This seems to be the first record of this species from Panama. 



This species was described by Mr. Hellmayr (Bull. Brit. Orn. 

 Club, xix, p. 62, 1907) from a Trinidad specimen collected by Dr. 

 F. M. Chapman and recorded by him as C. cinereicauda Cassin (Bull. 

 Amer. Mus. Nat. Hist., 1895, p. 324). Before describing it as dis- 

 tinct Mr. Hellmayr sent me a specimen of this and allied forms for 

 comparison with Cassin's type. As he has stated, I found Cassin's 

 specimen to be identical with C. hrachyura (Jardine). At the same 

 time I found a specimen of the proposed C. chapmani in the Academy 

 collection, and a comparison of this with the Panama specimens be- 

 fore me positively confirms mj^ identification. This extends the 

 range of the species northward, as it was previously known only from 

 Trinidad and French Guiana according to Hellmayr. 



TROOHILIDJE. 



144. Threnetes ruckeri (Bourcier). Rucker's Hermit. 



Two males, Gatun, February 12, 1911, and January 28, 1912. Iris 

 black, maxilla black above with a narrow yellow strip on each side 

 from the base, mandible yellow with a black tip, feet pink. 



A bird of the jungle, a noisy species. 



