R. Londinensis, as its name implies, is found in the vicinity of 

 our capital, even as near as Copenhagen Fields ; it has no stigma. 

 R. affinis is a smaller species, the male of which is figured in 

 Kirby and Spence's Introduction to Entomology (pi. 3. f. 6.) ; 

 R. maculicollis is very similar to R. Londinensis and R. jnega- 

 cephala and 02^hio2)sis appear to me to be the same. 



The larvae are described by Latreille as very nimble and vora- 

 cious, living upon small insects, and concealing themselves in 

 crevices in the bark of trees ; the pupae, like the rest of the 

 Order, have the power of locomotion. The perfect insect also 

 feeds upon smaller ones, its long moveable thorax enabling it 

 to seize its prey in any direction with great facility ; and it is able 

 to bite with considerable force with its acute mandibles, which it 

 can extend considerably. 



The ovipositor is exceedingly dissimilar to those of any other 

 insects; by Latreille^s description and my own observations, it 

 appears to be formed by two canals united, with a space between, 

 being composed of transverse rings which enable the insect to 

 propel the eggs to the apex, where they are received and deposited 

 by the two appendages, in clusters like fly-blows. 



The month of June appears to be the season for all the species 

 in the imago state, and they are stated to prefer the neighbour- 

 hood of streams ; the specimen, however, figured in the plate, 

 with two or three others, were beat out of White-thorns in rather 

 high ground in the New Forest. 



The plant figured is Veronica Chamadrys (Wild Germander). 



