82 



BULLETIN 326, U. S. DEPARTMENT OF AGRICULTURE. 



found in three, an ant in one, and in another a small hyraenopteran parasitic 

 on ants (Kapala sp.). Less than half those consumed can be called beneficial. 



One bird had eaten a lizard and one a tree toad, together forming 1.07 per 

 cent. Snails were found in two stomachs, a dragon fly in one, a neuropteran in 

 one, and some insect eggs in another. These miscellaneous items total 3.9S 

 per cent. 



The following were identified in the stomachs examined : 



OETHOPTEEA. 



Xeoconocephalus sp 1 



Scaptcriscus didactyhis 3 



HEMIPTEBA. 



Proarno sp 1 



Proarno hila?'is 4 



Ormenis sp 1 



Xezara sp 1 



Thyanta sp 1 



COLEOPTEEA. 



AemcEodera sp 1 



Eouria sp 1 



Compsa sp 2 



Leptostylus sp 2 



CryptocepJialus sp 6 



ZIyochrous sp 1 



Diabrotica sp 2 



Zabrotes sp 1 



COLEOPTEEA — continued. 



Helops sp 4 



Laclinopus sp 7 



Diaprepes spengleri 5 



HTMEXOPTEBA. 



Kapala sp 1 



Exomalopsis sp 1 



PoJistes sp 2 



EUs sexcincta 1 



MOLLUSCA. 



Suoulina sp 1 



YEETEBEATA. 



Eleutlierodactylus sp 1 



A?iolis sp 1 



Vegetable food. — Of the vegetable food 1.94 per cent may be called rubbish 

 and the remainder, 13.89 per cent, is composed of seeds, usually with a little of 

 their pulpy exterior accompanying them. One bird had eaten 36 grass seeds 

 (Paspalum sp.), but this is apparently an unusual food. The espino (Xantlxoxy- 

 lum sp.), a favorite, was found seven times. Others recognized were the moral 

 (Cordia sp.), nightshade (Solatium sp.), and wild fig (Ficus sp.). 



The seeds in the following list were identified in the stomachs examined: 



Paspalum (Paspalum sp.) 



Wild fig {Ficus sp.) 



Chenopodacece sp 



Vetch (Yicia sp.) 



Espino (Xanthoxyhim sp.). 

 Nightshade (Solanum sp.) 

 Moral (Cordia sp.) 



Summary. — The vegetable food of the jui may be dismissed with the state- 

 ment that it is composed of wild species of no importance to man. In the animal 

 matter, Hymenoptera, the large family containing wasps, bees, and many para- 

 sitic species, stand out rather prominently, but as more than half of those taken 

 are known to be neutral, their destruction is of little importance. The vertebrates 

 destroyed are of value to man, as they aid in the war on insects. Some of the 

 predatory bugs may also be considered beneficial. These, however, though long 

 in enumeration are small in bulk compared with the great mass of destructive 

 weevils, beetles, squash bugs, and others forming the average daily food of the 

 Antillean flycatcher. Only one-eighth of the animal food may be considered 

 more or less indirectly beneficial to man and agriculture, and the remaining 

 seven-eighths consists almost entirely of animals living contrary to human in- 

 terests. Thus this species is a firm ally of agricultural interests in Porto Eico. 

 Though retiring in habit, it is more common than is supposed by the casual 

 observer and its whistled call note, regarded with superstition by the country 

 laborer, may always be considered an omen of good fortune. 



