plantations of my friend Philip Bennet, Esq., of Roiigham 

 Old Hall, I shall proceed to their description and history. 



In pulling the bark off the decayed stump of a Fir-tree, I 

 saw some larvae apparently entangled in a white cottony web, 

 which I at first thought were young glow-worms. On re- 

 moving them I discovered that they were of various sizes; they 

 moved slowly, and some of the largest seemed as if they were 

 either dead or in a torpid state, but these proved to have been 

 punctured by a little parasite allied to GnatJio dispar (Colax, 

 pi. 166.), a great number of which afterwards hatched. The 

 larvae were of a dead deep chocolate colour, but ferruginous 

 beneath, and composed of eleven segments besides the head 

 and apical joint, which were so deflexed as to be concealed as 

 represented in figure L, the line showing the natural size of 

 the full-grown larva. They have 6 pectoral feet, the antennae 

 are short and filiform, the 1st thoracic segment is semiorbicular 

 with an orange spot at each angle, the remainder are pro- 

 duced and reflexed laterally so as to form 10 hooks on each 

 side, the Srd, 4th, and 8th being orange-coloured, and the 

 sides of the belly are similarly serrated. In three weeks some 

 of these larvae became pupae of a deep ochreous colour, but 

 they soon died. 



Latreille says the Endomychi live beneath the bark of 

 Birch- trees, and Gyllenhal states that they inhabit fungi and 

 putrid wood, and the larvae which I found appeared to be 

 living amongst a thin fungus which occupies the place of the 

 inner bark in decaying trees. 



E. coccineiis has been considered a rare insect in Eno-land ; 

 It occurs, however, occasionally in abundance, but it is very 

 local : about 20 years since it was found in multitudes in 

 Coomb-wood, in May and June, under the bark of stumps of 

 Alders, Willows, &c.; and I once found a specimen in Suffolk 

 in September. Holt Forest, Dorset, and Sherborne: Mr. Dale. 

 " Not very unfrequent on the Crwmlyn sand-hills; it has also 

 been found dead by Mr. Jeffreys among the rejectamenta of 

 the Neath river near Briton Ferry :" Mr. Dillwyn. 



For specimens of the Orc/ns (Habenaria) viridis (Green or 

 Frog Orchis), I am indebted to Lady Blake, who gathered 

 them at Bradfield and Barton in Suffolk : the root is shown 

 at fig. B. 



