148 Journal New York Entomological Society. ^^'°^- ^^^^, 



Order HYMENOPTERA. 



Family ENCYRTIDJE. 

 EncyrtUS flavus Howard. 



Bred from Coccus Jicspcridiim (soft scale). 



Family CHALCIDIDJE. 

 Isosoma orchidearum West. 



" The Cattleya fly." Infests Cattlcya orchids, larvae living in the 

 inilbs. Quite a pest. 



Family FORMICIDiE, 

 Pheidole anastasii Emery. 



Common in greenhouses. 



Tetramorium caespitum Linn. 



The lawn-ant. An importation from Europe. Has been found 

 in greenhouses. 



Tetramorium guineense Fabr. 

 Common in greenhouses. 



Prenolepis fulva Mayr. subsp. pubens Forel. 

 Common in greenhouses. 



Order DIPTERA. 



Family MYCETOPHILIDiE. 

 Sciara multiseta Felt. 



Occurs in greenhouses where mushrooms are raised. 



Sciara inconstans Fitch. 



The fickle midge. Occurs in greenhouses where mushrooms are 

 grown. 



Family CECIDOMYIIDJE. 



Neocerata rhodophaga Coq. 



The rose midge. Maggots occur in leaf and flower buds of roses 

 in greenhouses. 



*fe& 



Phytophaga violicola Coq. 



The violet gall midge. Maggots curl leaves of greenhouse violets. 

 Not common. 



Family PHORIDiE. 



Aphiochseta albidihalteris Felt. 



Occurs in greenhouses where mushrooms are grown. One of the 

 mushroom flies. 



