77 



parasitic Hymenopterafor mauj' years and speaks with authority. Yet 

 some of the species, judging from analogy, must be secondary and not 

 primary parasites. 



Ichneumon fabricator Gr. 



Ichneumon fabricator var. 



Ichneumon saturatorius Wsm. 



Ichneumon deliratorius Gr. 



Ichneumon scutellator Gr. 



Ichneumon pallifrous Wsm. 



Ichneumon anator Wsm. 



Ichneumon nigritarius Gr. 



Ichneumon ochropis Wsm. 



Ichneumon tentator Wsm. 



Ichneumon varipes Wsm. 



Ichneumon albinus Gr. 



Anomalon violatum Gr. 



Anoraalon tenuicorne Fbr. 

 Anomalon varitarse Hgr. 



Anomalon geniculatum Gr. 

 Anomalon clandestinum Gr. 

 Campoplex mixtus Gr. 

 Campoplex melanarius Hgr. 

 Thersilochus harpurus Schrk. 

 Porizon hostilis Gr. 

 Porizon boops Gr. 

 PorizoQ saltator Gr. 

 Mesoleius aulicus Gr. 

 Mesoleius sanguinicoUis Gr. 

 Mesoleius hsematodes Gr. 

 Mesoleius caligatus Hgr. 

 Mesoleius segmentator Hgr. 

 Mesoleius improbus Hgr. 

 Mesoleius sanguinicoUis ? 

 Tryphon vulgaris Gr. 



Tryphon brunniventris Gr. 

 Trematopygus nigricornis Hgr. 

 Polyblastus cothurnatus Hgr. 

 Polyblastus arcuatus Hgr. 

 Bassus hetatorius Fbr. 

 Bassus albosignatus Nees. 

 Bassus flavoliueatus Hgr. 

 Bassus bimaculatus Hgr. 

 Bassus cognatus Hgr. 

 Pimpla examinator F. 

 Pimpla instigator F. 

 Pimpla varicornis Gr. 

 Pimpla mixta Rtz. 

 Pimpla longiseta Rtz. 

 Pimpla flavipes Gr. 

 Pimpla oculatoria Gr. 

 Cryptus atripes Gr. 

 Cryptus seticornis F. 

 Cryptus longipes Htg. 

 Cryptus n. sp. (brumatse Rudow). 

 Phygadeuon vagaus Gr. 

 Phygadeuon brumata n. sp. 

 Hemiteles cingulator Gr. 

 Hemiteles niger Gr. 

 Hemiteles oxyphymus Gr. 

 Hemiteles pectoralis n. sp. 

 Hemiteles socialis Gr. 

 Hemiteles fulvipes Gr. 

 Pezomachus fasciatus Gr. 

 Pezomachus agilis Forst. 

 Pezomachus audax Forst. 



A STRANGE OMISSION. 



It is very strange that attention has never before been called to the 

 fact that " Standard Natural History " entirely omits mention of the 

 family Thripidce or order Thysanoptera. 



HABITS OF CIMBEX AMERICANA. 



In a recent letter from Mr. Elmer D. Ball, of Little Rock, Iowa, he 

 reports the following observations on the common willow Saw-fly : " I 

 noticed in Insect Life that this insect was common in Nebraska, and 

 mention was made of the injury done to the trees by their cutting a 

 slit nearly around the twigs. I have watched this for a number of years 

 and can say that these slits always heal over and the tree continues to 

 grow without apparently being injuriously affected, but when the larvae 

 hatch and begin eating them the growth of the tree is arrested for that 

 year. They will strip it of ail its leaves and then travel on to the next 



