VOL. IV.] Leitcarciia Rickseckeri. 247 



Sialia mexicana. WESTERN Bluebird. Very common dur- 

 ing migrations from sea level to the top of the range, a few 

 lingering to nest with the local race. A series of seventy-five 

 skins taken the present year during the nesting season sustain 

 the characters of anabelcB, as set forth by myself in 1S89, to a 

 strong degree, only about ^% of the males showing an unbroken 

 band of bay on the breast, which refers them to true mexicana, 

 and many of the high-plumaged males of the anabelcB stripe were 

 almost entirely without bay markings on either breast or scapulae. 



LEUCARCTIA RICKSECKERI. 



DR. H. H. BEHR. 



Mr. E. E. Ricksecker sent me four specimens of a Leucarctia 

 which he raised from larvae found on a species of Senecio, and 

 after careful comparison as to description and figure of L. albida, 

 Stretch, I think that Mr. Ricksecker is justified to consider them 

 a new species. 



As Mr. Ricksecker lives in the country, rather isolated from 

 scientific intercourse, he has empowered me to publish and name 

 the species. I call it after its discoverer. 



L. Rickseckeri: <5 grisea, ? alba. In utroque sexu palpi 

 annulis duobus et apice atro signati. Antennae atrae supra serie 

 punctorum minimorum candidorum signatae. Abdomen luteum, 

 crines basales segmentumque apicale albi, series punctalis dor- 

 salis atra. Alae 5 ris anticae griseae fasciis dilutis obscuris, pos- 

 ticae sordide luteae puncto discali et duobus submaginalibus 

 dilutis. In utriusque sexus alis anticis ad bifurcationem venae 

 medianae puncto atro bene distincto notatae. 



L. Rickseckeri'is about the size of small specimens of L. Acrcea. 

 $ wings immaculate, except a minute black discal spot on 

 anterior wing. Body similar to L. Acra-a, but with the black 

 spots fainter, sometimes obsolete. 3 thorax and anterior wings 

 a diffused smoky color, immaculate except the minute discal spot. 

 Posterior wings yellowish-brown with one discal and two or 

 three submarginal spots quite indistinct and nearly obsolete. 

 Both pairs of wings are brown underneath with a few variable 

 obsolete black points. 



