Eighth Report of the State Entomologist, 



165 



In my Fourth Report, a figure is given on page 39 of a Thalessa in 



the act of ovipositing, t iken from some old out, winch, under the 

 supposition that it was intended to represent T. lunator, was so desig- 

 nated by me. Dr. Riley, in 

 Insect Life, i, p. 173, has copied 

 from the American Agriculturist, 

 a figure almost identical with this, 

 which he refers to Rhyssa per- 

 tuasoria (Linn.) — an European 

 species, having a shorter oviposi- 

 tor than ours, and with other 

 differential features that have__, 

 given it place in another genus. - 

 In correction of my error, the 



figure of my Fourth Report is female, ovipositing. 



herewith given with its corrected name, and in Plate 2 [Figure 1 7], I also 

 present the excellent plate of Thalessa lunator which was one of the 

 illustrations of Dr. Riley's paper previously referred to. 



The illustration of Tremex Columba, in its larval, pupal and perfect 

 stages, from the same paper is also given herewith, as being a great 



Fig. 20 — The long-sting. Rhyssa persuasoria, 



Fig. 21 —Tremex Columba: a, larva showing the Thalessa larva fastened to its side; b, head of 

 larva; c, pupa of female; d. male pupa; e, adult female — all slightly enlarged. 



improvement upon the representations hitherto published of this 

 species, and as illustrating the parasitic association with it of T. lunator. 



