104 BULLETIN 326, U. S. DEPARTMENT OP AGRICULTURE. 



The following were identified in the stomachs 



HEMIPTERA. 



Ormenis sp. 



COLEOPTERA. 



Scymnillus sp 



Cryptorhopalum si 



Eouria sp 



Leptostylus sp 



Cryptocephalus sp. 

 Metachroma sp 



coleoptera — continued. 



Euscepes porceUui 

 Apion sp 



HYMEXOPTERA. 



Kapala sp 



AMPHIBIA. 



Eleutherodactylus sp 



SYCAMORE WARBLER. Dendroica dominica dominica (Linnaeus}. 

 Reinita,, Bijirita Dominica. 



Sundevall (1869, p. 596) notes one specimen of the sycamore warbler received 

 from Hjalmarson, while Gundlach (1878, p. 184) found it a common winter 

 visitant from September to March. I did not meet with it. 



MYRTLE WARBLER. Dendroica coronata (Linnaeus). 

 Reinita, Bijirita Coroxada. 



The myrtle warbler is a tolerably common winter visitant. The first was seen 

 January 5 in the plaza at Caguas, and from then on it was noted occasionally 

 in the forests and more open growth. In February, about Mameyes, there seemed 

 to be some migratory movement among these birds. The last one was seen in 

 the town of Isabel II, on Vieques Island, April 1. - 



Only four stomachs of this bird were secured in Porto Rico, so that the food 

 can be merely indicated. Caterpillars completely fill one stomach and form one- 

 fourth of the contents of another. The remains of small Homoptera are promi- 

 nent in two stomachs. One bird had eaten a large number of Diptera, and 

 small particles of beetles occur twice. Spider remains form three-fourths of 

 the contents of one stomach and are found in small quantities in another. This 

 is the only element in the food that counts against the bird, the majority of the 

 insects taken being harmful species. From the meager data available this 

 warbler while in Porto Rico seems to conform in food habits with the prairie 

 warbler and others of the same genus. 



BLACK-THROATED BLUE "WARBLER. Dendroica ccerulescens cceruJescens (Gmelin) . 

 Reixita, Bijirita Aplomada. 



Gundlach (1878, p. 179) records the black-throated blue warbler for the island 

 on the strength of a drawing seen in the album of Bello and on a record by Don 

 Tomas Blanco. Stahl (1883, p. 139) had a specimen in his collection from Porto 

 Rico. I found it a rare winter visitant, noting the first at Rio Piedras December 

 22 and the last on Vieques Island March 27, when several were observed with 

 other migratory warblers. On El Yunque, in March, they were fairly common 

 in the dense forests. They scold vigorously at intruders, and their demonstra- 

 tions attract all the other birds in the forest. Near Rio Piedras they were eat- 

 ing berries of the sapalo (Palicourea riparia). 



Eight stomachs of this bird were collected and in these animal matter forms 

 75.5 per cent and vegetable 24.5 per cent of the contents. The vegetable food 

 was found in the three stomachs taken in December and January and consisted 

 of seeds of the camacey (Miconia prasina). Of the animal food 19.46 per cent 

 is composed of lantern flies (Fulgoridse), which seem to be favorites with all 

 warblers. Remains of other bugs come to 6.87 per cent, while weevils of various 

 sorts make the large sum of 14.25 per cent. Among them were found a coffee 



