down on the side and close to the anterior margin of the 

 mesotliorax ; viewed above they look like pendants for the 

 ears, whence the generic name. The thorax is shorter than 

 in Slylops and more gibbose, as well as the postscutellum. The 

 body is long and slender, but not having been able to get a 

 clear view of the apex in Mr. Dale's specimen (D.) it may not 

 be an exact resemblance of it. The long and slender antenna? 

 are remarkable. The 4 anterior legs attached to the collar 

 and mesothorax, are close together like those of Pulex, and the 

 exceedingly long coxae enable the insect to porrect them very 

 forward or to place the intermediate nearer the hinder pair 

 as represented in the coloured figure : the tarsi appear to be 

 formed of 2 joints only, which are much more slender in the 

 first pair than in the othei's. It must be remembered that in 

 Mr. Dale's specimen, the tarsi of the intermediate and the ter- 

 minal joint in the posterior pair are wanting. 



I have not the least doubt that Mr. Walker's and Mr. Dale's 

 insects are the same species, and the differences in the outline 

 figures with regard to the form of the antennae and legs arise 

 from Mr. Dale's having been drawn in a dry state, whilst that 

 of Mr. Walker (W.) was relaxed in hot water. 



Mr. F. Walker first discovered a female ? at Southgate 

 amongst grass, S-ith June. Mr. Dale next took a male? 

 11th June 1830, by sweeping some flowers and wheat near 

 Glanville's Wootton, and found it in his net when he returned 

 home; and the end of June 1830 and July 1831 Mr. Haliday 

 took 2 females in sweeping some herbage near Belfast. To 

 all these gentlemen I am indebted for the use of their speci- 

 mens, and to the last for his kindness in having presented me 

 with one accompanied by the following interesting observations. 



" I have no clue to the family it may be parasitic on, for I have not 

 found any bee with the larva in it; the most common in its locality 

 are Andrena cineraria & albicans and Halictus 7-ubicundiis & albipes. It 

 seems very delicate ; the only specimen 1 could succeed in bringing home 

 alive I put under a watch glass, but having to leave it for an hour 1 found 

 it dead, though placed in a cool spot. It moved with a vacillating but 

 tolerably rapid gait with the upper wings extended and the lower rapidly 

 vibrating, the abdomen, with which it smooths the wings, twisting freely in 

 all directions. The antennas are kept apart with the branches divaricated, 

 and the longer one generally bent in an angle at the articulation ; the 

 palpi? mostly in motion. All the membranous parts are capable of much 

 dilatation and contraction, and are fully expanded when in lively motion, 

 but contract after death. The wings were cinereous with blacker nervures. 

 Abdomen longer than the rest of the trunk, fleshy, of 8 segments besides 

 the anal one bearing the appendage. The first three are softer, more ex- 

 tensile and versatile than the rest, which have a single row of transverse 

 spots down the back, one on each segment, of stronger consistence and 

 darker colour, also a series of more minute ones down the belly. The colour 

 of the membranous parts is cinereous yellow, the horny plates of a darker 

 blackish-cinereous shade : the ovipositor tibiae and base of antennae nearly 

 black, eyes deep black."— Mr. A. H. Haliday's MSS. 



The Plant \s Hypochceris radicata (Long-rooted Cat's-ear). 



