Bangs — Birds from Costa Rica and Chiriqui. 



109 



little known genus from Irazu, and wrote me that he thought it represented 

 a new form. 



Later in the season— May, 1905— Mr. Ridgway visited Trazu himself and 

 liad the pleasure of seeing the sjiecies in life, liis companion, Don Anastasio 

 Alfaro, succeeding in taking one example, whicli has been kindly lent me.* 

 The species lived on Irazii in brushwood in ravines above timber-line. 

 There is no cane (bamboo) on Irazu. It was not uncommon, though very 

 hard to shoot. 



The Irazii wren is quite distinct from the only other known member of 

 the genus, T. brnwni of the Volcan de Chiriqui, wholly lacking the strong 

 ruddy or chestnut coloring of tlie lower back, rump, tail coverts and flanks 

 of that species ; it is also larger. 



Cyanolyca blandita sp. nov. 



Ti/pe from Volcan de Chiriqui, 9,000 feet altitude, cJ adult. No. 9324, 

 coll. of E. A. and O. Bangs. Collected June 2, 1901, by W. W. Brown, Jr. 



Chararlcra. — Similar to Cyannh/ra iir/;n)ti(jnla (Lawr.) of Costa Rica and of 

 the same size, but throat constantly pale blue— flax flower V)lue — and 

 pale colored l)and across head narrower and blue throughout, darker on 

 sides of head, paler in middle. In C. nrgpntig^ilri the throat is silvery 

 white, sometimes shaded with lavender gray ; the band across head is 

 much wider, nearly wliito in middle and pale blue at the sides. 



Nestlings of tlie two forms are easily distinguished; even in this stage 

 of plumage C. nrgcntiguin having a silvery and C.hlandita a blue throat. The 

 band across the head is narrower and less definite than in the adults, but 

 it is bluish in C. hUinditd and whitish in C. argenllgula. 



MKASUIiEMKNTS. 



At the time I worked over the collections made in Chiriqui by Brown I 

 did not have adequate material from Costa Rica and referred the Chiriqui 

 bird to C. argentiguln. The splendid series in the Underwood collection 

 including adults taken at various seasons of year (January, February, May, 

 June, and Sei)tember), and nestlings, compared with the equally good one 

 from Chiriqui, at once proved the incorrectness of my earlier identification, 

 and showed the forms from the two regions to be distinguishable at a 

 glance. 



Vireolanius pulchellus viridiceps Ridg. 



In the Underwood collection is one fine adult male of this subspecies 

 from Pozo Azul, western Costa Rica, taken June 10, 1903. Thus still an- 



*See Robert Ridgway, A Winter with the Birds of Costa Rica, The Condor, Vol. VII, 

 No. 0, November-December, 1905, p. 159. 



