Catalogue of BritisJt Ichncumonidce. 369 



autumn I again met with several males, and with them 

 a female, which is exactly like the male, except that the 

 yellow marks on the face and thorax are absent ; the 

 aculeus is very short, about the length of the 1st segment 

 of the abdomen, in this respect similar to Holmgren's 

 short description of the female of L. caligata. I do not 

 feel at all certain that they are not one and the same 

 species ; Gravenhorst only described the male, and 

 Holmgren was the first who found the female for it, and 

 it is not impossible that he may be mistaken, and that 

 his female caligata is really the female of Icptogaster. 



Lissonota hrachycentra Gr. 

 Gr., I. E., iii., 5Q>, 30, ? . 



Head and thorax punctate, interstices finely reticulate ; superior 

 surface of nietanotum not separated by a transverse ridge ; abdo- 

 men very finely transversely aciculate, with indistinct indications 

 of punctiures ; 2nd and 3rd segments rather longer than vs^ide ; 

 transverse anal nervure divided belovi^ the middle, bu.t this varies ; 

 it may be about one-third fi'om the bottom or rather nearer to the 

 middle. Aculeus about as long as the 1st segment of the abdomen. 



Black ; inner orbits with a narrow yellow line, this shorter in 

 the female than in the male ; clypeus, mandibles, and palpi reddish 

 yellow, more red and less in extent in the female ; mesonotum of 

 male with two small yellow spots in front against the parapsides ; 

 base of wings, squamulas, and tubercles yellow ; stigma pale 

 testaceous ; abdomen reddish brown, incision of 2nd segment and 

 sometimes back of base of ord paler ; legs red ; greater part of hind 

 tibiae and hind tarsi slightly fuscous. Male and female. Length 

 about 7 mm. 



This insect is very much like the previous one (L. lepto- 

 gaster), but differs in the following particulars : the abdo- 

 men is decidedly brown, not black, and the transverse ridge 

 on the metathorax is absent; iwleptog aster the squamula3 

 are red and the stigma brown, and the transverse anal 

 nervure is divided almost at the bottom ; the face of the 

 only female I have taken has not the yellow line. I 

 know of the description of only two species of Lissonota 

 with aculeus as long as the 1st segment ; the one is 

 Holmgren's L. caligata, and Thomson's L. genalis, which 

 is much like the former, but has a yellow mark on the 

 cheeks, and hind knees blackish. Several specimens of 



