52 



ENTOMOLOGICAL SOCIETY OF ONTARIO. 



VanDuzee has named Ulopa canadensis and which has been noted previously as occurring 

 in Ot'awa. Mr. Kilman has also found the species at Ridgeway, and it is probably 

 widely distributed. The specimens marked with an asterisk were nymphs, or immature 

 forms, so that the species could not be exactly determined. The insects belonging to this 

 order are the only forms properly entitled to the name "bug," and they are mainly plant- 

 feeding. Subsisting upon the juices, which they suck from the leaves and stems by 

 means of the tubular beak formed by the prolongation of the mouth-parts, they rank 

 among the insects most injurious to plpnt life, and are most difficult to destroy or keep 

 in check. The smaller forms, known as plant-lice, are very numerous in species, and 

 they multiply with great rapidity, so that a very brief time suffices for the attacked plant 

 to become quite covered by the immense number in all stages of growth, and to have its 

 vitality exhausted. 



Hymenoptera. 



Proctotrypid.*:. 



Mepfaspilus ottawaensis Ashm Ti 



Ceraphron miautus Ashm 4 



flaviscapus Ashm 2 



carinatus Ashm. ? ... 5 



mallipes Ashm. ? 2 



Aphanogmus bicolor Ashm 8 



Telenomus sp 1 



Acoloides subapterns Ashm 4 



.seininiger Ashm 1 



sp. nov. ? 1 



Bieus minutus Ashm 47 



Prosacantha melanopus Ashm 1 



Hoplogryon brachypterus Ashm 41 



sp. nov. ? 1 



Gryon canadensis Ashm OS 



borealis ^4 shm . 3 



Paramesius clavipes Ashm 2 



] )iapria sp 1 



Trichopria carolinensis Ashm 4 



Peoc'TOTRYPI]).e -Continued. 



Trichopria sp. (apterous) 2 



sp 1 



Phienopria aptera Aihm 16 



h;=ematobi?e Ashm 10 



Mymarip.k. 



Cosmocoma sp 2 



FORMICID.E. 



Camponotns marginatus Latr 1 



Lasius brunneus Latr 1 



Tapinoma erraticum Hid 1 



MvRiMICID.E. 



Myrmica lobicornis Nyl 14 



sp 1 



Notes on the Hymenoptera. 



That this order should be so well represented will probably be a matter of much 

 more surprise than the occurrence of a large number of the ground-frequenting beetles. 

 One is apt to think of its members, in their adult form at least, as delicate- winged 

 forms flitting about in the sunshine. But besides the ants there are many wingless or 

 sub-wingless forms belonging to the various parasitic groups. Nearly half of the species 

 in the above list belong to these non-flying hymenoptera, but the remainder have fully 

 developed wings. It will be seen that twenty-nine species are enumerated, of which 

 five occurred in both localities, five at the Farm only (of which four were ants) and 

 nineteen only in the swamp, which was decidedly the most prolific ground, yielding 

 218 out of the 250 specimens collected. Many more ants could have been collected, 

 for their nests, some of considerable size, were scattered all through the swamp, but 

 those secured were stragglers that had probably got lost in their wanderings, and had 

 not been able to reach home before the cold weather stopped their journeyings. With 

 the exception of these ants all the species are very minute, and belong to the family 

 Proctotrypidt-e ; except one species belonging to the MymaridcT, a small group formerly 

 included in the Proctotrypidi>3 but which Mr. Ashmead considers should constitute a 

 separate family. The first six species belong to the sub family Ceraphroninte, whose 

 members are parasitic on Aphididiv (plant lice) and Cecidomyiidte (midge-like flies 

 forming gall-like swellings, etc.). The following ten species belong to the sub-family 

 Scelioninfe, all of which are egg parasites, the larvje living in the eggs of other insects. 

 I have bred as many as thirty-one individuals of a species of Telenomus from two eggs 

 of one of our large moths, but usually one parasite occupies each egg. Seven species 

 belong to the sub-tamily Diapriinre, parasites of the larvje of flies. The most abund 



