226 ENTOMOLOGICAL SOCIETY 



Melinna pumila Uhl. Occurs abundantly in June, July and 

 August. Prof. Uhler found specimens upon Willow as late as 

 the middle of October. (Ent. Amer. iii, p. 70). 



4. SPECIES FOUND ON LINDEN (Tilia spp.). Psallus sericeus 

 Uhl. MS. Found on Tilia europoea and T. argentea in the 

 grounds of the Department of Agriculture. Quite common from 

 the middle of June to late in July. This interesting Capsid likes 

 to hide in the withered blossoms, and evidently punctures the 

 forming fruit ; it is easily overlooked, as its straw-yellow color 

 does not offer the slightest contrast with the faded blossoms. 



Phylus modestus Uhl. Occurs from middle of May to mid 

 dle of June ; not uncommonly on L/inden blossoms. 



Camptobrochis grandis Uhl. Quite common. I have taken 

 the larva in the middle of June on flowers of Tilia argentea ; 

 the whole body being entirely covered with a white mealy 

 substance. The imago, according to Prof. Uhler, preys on 

 small caterpillars, and occurs also on grapevine. (Ent. Amer. 

 ii, p. 231). 



5 . SPECIES FOUND ON ASH (Fraxinus) . Neoborus pettitii Uhl. 

 MS. This Capsid appeared early in the spring of 1890 (May 

 1 3th) around Washington in great numbers on native and im 

 ported species of Fraxinus. During May and June I secured 

 many specimens in all stages of development. I have found 

 this insect again last summer on the same trees but much less 

 abundant than the year before. A. S. Packard found the same 

 species on the leaves of the White Ash at Rangeley, Maine, 

 September 5 and 6. (Fifth Report U. S. Ent. Comm. p. 556). 



Orthotylus delicatus Uhl. MS. A very delicate Capsid of a 

 light green color. I took it from middle of June to July ex 

 clusively on Fraxinus excelsior in the Smithsonian grounds. 

 It occurred always in company of Phyllopsis fraxinicola Forst. 

 It is common but hard to capture ; when seen, it runs quickly 

 to the underside of the leaf and drops off. 



6. SPECIES FOUND ON BLACK BIRCH (Betula nigra}. Mala- 

 cocoris irroratus Say. The imago of this common and widely 

 distributed species occurs on many different plants, but I have 

 hitherto found the larva only on Black Birch in June and July. 



Phytocoris puella Reut. Not uncommon in the month of 

 July. Also found on grapevine. 



Referring to the above Mr. Schwarz remarked on the very 

 limited number of Heteroptera mentioned in Packard's " Forest 

 Insects, ' ' and the consequent importance of such additions as 

 those made by Mr. Heidemann to our knowledge of the Heter- 

 opterous enemies of forest and shade trees. 



