130 HYMENOPTERA. 



their names according to fancy, without regard to the prin- 

 ciples to which Mr. Dunning refers. Groot called himself 

 Grotius, and Rumph Rumphius, while Buchanan and 

 Pocock became Buchana7ius and Pocockius. 



The subject of the Ichneumonida3 will conclude with a 

 description of one of the largest novelties with which I 

 am acquainted. After comparison with every species of 

 Mctopius of Gravenhorst, Wesmael, Forster, and Holmgren, 

 I am obliged to conclude this one to be new ; and it has 

 been some years in my collection unnamed. 



Metopius peltatoe, n. sp. 



31. niger, scuti frontalis lateribus, lineis 2 humeralibus, 

 scutello postice, abdominis cingulis 5, tibiis tarsisque, 

 flavis ; scutelli angulis obtusiuscuUs ; alis subfulvo- 

 hyalinis, antice apicem versics saturate fuscis ; areola 

 quadr angular i. $ Long. 8 lin. 



The only British species with infuscated wings is dissec- 

 forius^ Panz., which has no yellow bands on the first 3 seg- 

 ments, the abdomen coerulescent, &c. 



Head, with the antennas and palpi, black, the facial shield 

 only being narrowly bordered with yellow at the sides and 

 top. Thorax black, with a short yellow line before the 

 wings ; hinder edge of the scutellum yellow, depressed and 

 sinuated, the angles prominent, flattened and obtuse. Abdo- 

 men black, not coerulescent, rugose, opaque, the rugosity 

 slightly diminishing posteriorly, so that the two last seg- 

 ments are somewhat shining, the last being merely punc- 

 tured ; all the segments except the first have the hind 

 margin narroMdy glabrous. Segment 1 with a yellow basal 

 band as broad as one-fourth of its length, 2 — 5 with a 

 yellow apical band, that of the 4th being narrower, and 



