154 fJ"^^' 



between the antennce ; whereas in paUlpex the branches of the carina diverge almost 

 at right angles, not from each other but from the stem, so as almost to form a T, 

 and the stem is not simple as in coyicolor, but divides into two short branches 

 forming a V between the antennae. These characters of the carinae are not so 

 strongly marked in the c? , the angle of divergence being only slightly greater in 

 pallipes than in concolor ; the antennae, however, of concolor are much longer than 

 those of pallipes, the 2nd joint of the flagellum being about twice as long as wide. 



This species appears to be very rare. I have only seen the $ 

 taken by Mr. Morice at Byfleet in June, 1897, and a ^ and ? taken 

 by Colonel Terbury at Tarrington, Herefordshire, the J" in June, the 

 ? in August, 1902. 



Cerceris, Fab. 

 In this genus two changes of name are necessary to bring our 

 nomenclature up to date. 



Ornata, Fab., &c., should now become a synonym of rybyensis, Linn. ; sabulosa, 

 Smith, of quadricincta, Panz. 



Crabro, Fab. 

 Several alterations and additions have to be made here. In the 

 first place an unfortunate error occurs in the table on p. 126 ; in 

 divisions 24 and 29, " metasternum " should read " mesosternum ;" this 

 mistake occurs twice in 24, and once in 29. 



Crabro pubescens, Shuck. 

 ? . This was first discovered in this country by Mr. A. Piffard, who took it at 

 Brickett Wood, St. Albans. It may be known from the ? of leucostomus, its 

 nearest ally, by its smaller size and narrower form, by its less widely impressed 

 forehead, and its more regulai'ly and more finely punctured mesonotum ; the spot 

 at the base of the hind tibiae is more developed than in leucostomus, and the red 

 ring at the base of the hind tarsi is less developed. The size and the form of the 

 impression of the head are the best characters, in pubescens the sides of the im- 

 pression of the forehead are inclined to be more or less tumid ; in leucostomus the 

 excavation though not very deep has its sides practically straight, which gives the 

 impression a much wider and deeper appearance. 



Crabro sfi/rms, Kohl. (Ent. Mo. Mag., xl, p. 11). 



Like a small, shining and less deeply black capitosus, but distinguished from it 

 as well as from cetratus by the form of the clypeus, which, viewed from in front, is 

 trituberculate, by the longer and more slender scape of the antennae, the slenderer 

 petiole, and the absence of visible sculpture on the abdomen ; both sexes are further 

 distinguished from capitosus by the less massive head, and from cetratus by the less 

 closely punctured mesonotum, and the (J by the simple anterior tibiae and tarsi. 



cJ ? , Shiere (Capron) ; New Forest, June — July, 1894 (Cham- 



