MicrocryfiiHS.] BRITISH ICHNEUMONS. 49 



shorter and very densely alutaceous second to fourth segments, coriaceous 

 mesopleurae and smootli frons, as well as by the radius being hardly longer 

 apically than basally ; the $ has the legs red, with the hind tarsi, apices 

 of their tibiae and femora, and all the coxae.and trochanters black, the last 

 being sometimes red-marked. 



7'his is by no means an uncommon species with us, though I have not 

 seen the female and nothing appears to be known regarding its economy. 

 It occurs in May, August and September, on umbelliferous flowers ((iraven- 

 horst), about London, at Darenth Wood, etc. (Stephens), Felthorpe, in 

 Norfolk (Bridgman), Horrabridge, in Devon, at the beginning of June 

 (Bignell), Guestling, near Hastings (Bloomfield), New Forest (Miss 

 Chawner), Grovely Wood, near Salisbury (Marshall), Tostock, in Suffolk, 

 in July (Tuck). I have taken it flying in Lyndurst gardens, in the middle 

 of August ; at Rockland Broad in Norfolk, in June, when W. Saunders 

 found it at Greenings, in Surrey ; and on the flowers of Angelica sylvestris 

 at Barton Mills, in Suffolk, at the end of August. 



24. graviceps, Marsh. 



Aptesis gravkeps, Marsh. E.M.M. v. p. 155, 9- 



Head very large, twice broader than thorax and finely punctulate, black. 

 Antennae nigrescent, with the three or four basal joints testaceous, and 

 the seventh and eighth white above. Thorax finely punctulate, immacu- 

 late; metathorax with distinct and punctulate areae ; basal area small and 

 short ; areola he.xagonal, basally narrow, widest centrally and gradually 

 contracted thence to its apex ; costulae distinct. Abdomen hardly punctu- 

 late, nitidulous ; black, sometimes with the apex of the first segment and 

 disc of the second more or less badious ; basal segment finely punctulate, 

 shortly bicarinate, with two longitudinal lateral furrows ; apically glabrous 

 and thrice broader than the petiole ; spiracles central and incons|)icuous ; 

 terebra as long as the basal segment, fulvous, with the valvulae testaceous 

 and apically black. Legs entirely testaceous. Wings reaching beyond 

 apex of metathorax, sub-infuscate, with the nervures becoming apically 

 obsolete ; stigma triangular, pale fuscous ; areolet transverse, sub-obsolete, 

 irregular or quadrate, with the lower nervure incomplete. Length, 

 2\ mm. 



The Rev. T. A. Marshall says that in one specimen the radial cell is 

 closed on the right side and incomplete on the left ; and that in another 

 individual the areolet is obsolete and reduced to a punctiform knot, which 

 is combined with rather shorter wings. 



The tricoloured antennae appear to leave no doubt lluit this somewhat 

 anomalous insect should be placed in the present genus, although the 

 remarkable conformation of the head corresponds rather with certain 

 s|)ecies of rhv}^acieiwii. It has not yet been noticed on the Continent 

 and finds no place in the most recent European enumeration of the 

 Cryp(inae. 



Four specimens of this very distmct species were captured in a wood 

 near Milford Haven, by Marshall, during August, 186S; and it does not 



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