SPECIES. 



105 



and Andrena), bugs {Euschistus, Gorim,elaena, etc.), and flies (Tipulidse 

 and Oalliphora vomitorla, the caddis-flies and larvae of saw-flies). 

 The caterpillars were cutworms {Agrotis and Nephelodes violanfi), and 

 in several cases such bristly larvse as Spilosovia. The parasitic wasps 

 were Ichneumonidse and scoliid wasps {Tiphia inornata). Ants are 





Fig. 38.— Mockingbird. 



a characteristic element of the food. In the present instance they 

 included Lasius, Tetramorium.^ Formica subser-icea, and Cairvponotus 

 pennsylvani^us. The coleopterous food is interesting because four- 

 fifths of it consisted of injurious beetles. The list of beetles identified 

 is as follows: 



Lachnostema. 



Anomala ludcola. 



Dichelonycha. 



Ontliophagus pennsylvanicus. 



Aphodms. 



Odoniota dorsalis. 



Longitarsus. 



Hsemonia nigricortiis. 



Corymhites pyrrhos. 



Monocrepidius auritus. 



Aniaodadylus rusticus. 



Brachylobus Uthophilus. 



Oychrus stenostomus. 



Harpalus. 



Chlsenius. 



Staphylinus cinnamoptervs. 



ChauUognathus. 



Hister. 



Tenebrionidse. 



Epicurus imbricatus. 



Tanymecua confertus. 



Were cherries, blackberries, and raspberries raised for market on 

 the farm in large quantities, the host of catbirds with their highly 

 frugivorous habits might do harm, but as this is not the case they not 

 only cause no loss but are beneficent through their destruction of 

 insect pests. 



The brown thrasher {Toxostoma rufum, fig. 39), which is not common 

 on the Marshall Hall farm, is somewhat more insectivorous than its 

 relative the catbird. Onl}' one stomach was collected. This contained 

 black raspberries, cherj-ies, a cricket, a ground-beetle, and a May- 



