BIRDS OF PENNSYLVANIA. 177 



RED-COCKADED WOODPECKER (Dryobates borealis). 



Contents from eleven adults of both sexes Six egg-cases of a small cockroach 

 (Ichnoptera). The egg-cases of these small tree-inhabiting roaches are usually de- 

 posited behind the loose bark of trees. Three skins of coleopterous larvae ; judging 

 from their last joints they belong to the genus Tenebrio, the larvae of which are 

 found under dead bark. One leg of Pachylobious picivorus ; this snout-beetle is 

 common throughout the south, and is found upon the different species of pines. 

 Eight elytra of a beetle ( Cymatodera undulata or brunnea). These beetles are also 

 found under bark of living and dead trees; their larvae live upon other insects. 

 One small pupa of a Cerambycid insect ; it is probably the pupa of a Liopus or 

 Sternidius : both species breed in decaying twigs. One small larva of a Cerambycid 

 insect, not recognizable. One egg of a large hemipterous insect, probably that of 

 Brachyrhynchus granulatus, Say. Numerous legs of spiders and bugs. Two skins 

 of spiders, partly digested and squeezed out. Skin of a dipterous larva. Several 

 specimens of a dipterous pupa (Musca). Middle and hind leg of a Cerambycid be- 

 longing to the Acanfhocerince. Large numbers of ants ; the species found seem to 

 be Colobopsis impressa, Cremastog aster lineolata, Camponotus fallax, Formica 

 fusca and Leptothorax curbispinosus. Numerous legs and mouth parts, etc., refer- 

 able to one or the other of the species before mentioned make up the bulk ; but ants 

 were evidently the principal food. No vegetable food was found ; some vegetable 

 fibre, and probably obtained from the palmetto, was found, however. 



RED-COCKADED WOODPECKER (Dryobates borealis), ADULT MALE. 



Contents. Fragments of the abdomen only of Brochymena species ; also one leg of 

 the same. Undigested eggs of perhaps the same insect. Fragments of the abdomen 

 of Cremastog aster lineolatus. Fragments of a myriapod ( Julus). 



RED-COCKADED WOODPECKER (Dryobates borealis), ADULT MALE. 



Contents. One leg of Brochymena species. One larva of Pyralid. One ant, head 

 and abdominal plates, belonging to two different species. Numerous joints of a 

 Myriapod (Julus). Parts of legs belonging to ants, hemiptera and coleoptera. The 

 stomach was nearly empty and it was evidently a long time since the bird had made 

 a meal. 



RED-COCKADED WOODPECKER (Dryobates borealis), ADULT MALE. 



Contents. Numerous fragments of a Cremastogaster, apparently lineolata. One 

 coleopterous larval skin, without head or tail ; perhaps of Tenebrio. 



PILEATED WOODPECKER (Ceophlwus pileatus), ADULT MALE. , 



Contents. Two larvae of Orthosoma brunnea. Five ants (Camponotus csuriens). 

 Remains of other ants. The larva of Orthosoma brunnea is very destructive to pine. 



PILEATED WOODPECKER (CeopMmus pileatus), ADULT FEMALE. 



Contents. Two larvae of Orthosoma brunnea. Numerous Cremastog aster line- 

 olata. Numerous Camponotus esuriens and their cocoons. One larva of Xylo- 

 trechus spec. 



PILEATED WOODPECKER (Ceophlce us pileatus), ADULT MALE. 



Contents. One larva of Orthosoma brunnea. Five ants (Camponotus esuriens), 

 and fragments of the same. 



PILEATED WOODPECKER (Ceophtceus pileatus), ADULT MALE. 



Contents. Numerous fragments of Camponotus esuriens. Fragments of a Ceram- 

 bycid larva (Xylotrechust). 



12 BIRDS. 



