112 Analytical Notices of Books. 



" very fine. Legs alike, four anterior approximating, first pair attached 

 " to the antepecttts, second pair to the medipectus ; third pair very re- 

 " mote, attached to the extremity of the postpectus. Coxce, four an- 

 " terior very large. Tihioi not spined. Tarsi composed of four joints 

 " surrounded by a pubescent membrane, basal joint the largest, terminal 

 " the smallest, and notched at the apex. Claws none. Larvce inha- 

 " biting the abdomens of living Andrena, the heads being exserted be- 

 " tween the segments. Pnp<B inhabiting the same situations." 



In the accompanying Plate are given various views of this singular in- 

 sect, and also figures of the larva, both detached from the bee in virhich 

 it dwells, and as it appears from between the segments of the abdomen 

 of the Andrena. The pupa is also figured, which differs in several 

 remarkable particulars from the larva, and had entirely escaped the 

 notice of previous observers. The dissections of the mouth are laboured, 

 but, owing probably to the minuteness of the subject, Mr. Curtis pro- 

 fesses his inability to determine whether the organs internal to the palpi 

 are mandibles or maxillae : the palpi themselves he believes to be biar- 

 ticulate. The third joint of the antenna seems to be merely excentric, 

 being produced considerably on its inner side, so as to give to the whole 

 organ the appearance of being forked. The curious anterior appendages 

 of the alary trunk are shown, by its separation into the segments of which 

 it is composed, to be attached to the mesothorax, and consequently to be 

 truely anterior wings or elytra. No mention whatever is made, nor do 

 the figures indicate the existence, of the Prebalanciers of M. Latreille : 

 organs which we believe to have been founded on some misconception on 

 the part of that great entomologist. 



The species figured is distinguished by the minuteness of the second 

 joint of the antenncB, the small size of the second joint of the palpi, and 

 the differently formed wings. It appears, from Mr. Dale's information, 

 to have been far from uncommon in Dorsetshire during the spring of 

 1828, no less than five species of Andrena being infested with it, and 

 every specimen taken of one, the ./^nd. barbilabris, having contained 

 either its larva, pupa, or exuvia. It is active, and even when running 

 up and down a young shoot, has its elytra as well as its wings in conti- 

 nual motion, and makes a buzz nearly as loud as that of a Sesia, twisting 

 about its rather long tail, which it turns up like a Staphylinus. Two bees 



