216 POECILOSOMA SUBMUTICUM. 



6. PGBCILOSOMA LONGICORNE. 



Pcecilosoma longicorne, Thorns., Hym. Scand., i, 232, 6 ; Andre, 



Species,!, 333; Cat., 42 * 5. 



Black, shining, pilose on head and thorax, all the knees and anterior 

 tibise dirty white, a line on the pronotum clear white, and the abdominal 

 segments as often as not are marked with longish lateral spots of a 

 less clear white ; all the segments lined with white at the apices. 

 Wings hyaline, tinged with fuscous on the apical half; costa and 

 stigma black. (For Saw, see Plate XXI, Bg. 3.) 



5 similar but the antenna) are as long as the body and the legs in 

 front bear more white. 



Length 3 3 lines. 



Similar to submuticum but with the body longer and 

 narrower, the antennae slightly longer and noticeably 

 thinner with the ? , and distinctly so with the J , these 

 organs with submuticum not being much longer 

 than the abdomen, the head is more pilose, the antennal 

 fovea if anything shorter, and the claws almost bifid. 

 Thomson describes the claws as "bifid" in longi- 

 corne, but all my specimens have one tooth shorter 

 than the other, but still longer than in submuticum. 

 I am inclined to believe that the relative length of one 

 of the teeth varies with different specimens. The 

 first cubital nervure is almost always absent, while in 

 submuticum it is generally present. The accessory 

 nervure in hind wing is much appendiculated. 



Apparently a common species on Spircea ulmaria. 

 I bred it along with the larvas of Empliytus calceatus, 

 but did not have an opportunity of describing the larva. 

 But see p. 217. The imago appears during May and 

 June. 



Clydesdale, Norwich. 



Continental distribution : Sweden. 



7. PCECILOSOMA SUBMUTICUM. 



Pcecilosoma submuticum, Thorns., Hym. Sc., i, 232, 7 ; Cam., 



Fauna, 20, 3; Andre, 

 Species, i, 333; Cat., 42,* 

 6. 



Black, half shining, longish ; antennas as long as the abdomen, edge 



