Catalogue of British Ichneumonida. 153 



long as the width of the apex, — this about four times as 

 wide as the base, aciculate, as is the basal half of the 

 2nd segment ; remaining segments transverse, and 

 covered with scattered pubescence ; aculeus about one- 

 half the length of the abdomen. Legs moderate. Ke- 

 mains of wings barely visible. 



Black ; the last three segments have the apical margin 

 pale ; legs brownish red ; hind coxas brown ; apical half 

 of hind femora, a ring before the base, apex of middle 

 and hind tibiae, and apex of tarsal joints of hinder legs, 

 slightly fuscous. Female. Length, 4*5 mm. 



One female taken by Mr. Cameron at Kingussie. 



This appears to be a very distinct species, and, accord- 

 ing to Foerster's definition, hardly belongs to this genus, 

 it having the metathorax furnished with complete areas. 

 Several of his genera do not appear at all satisfactory ; 

 this species and Aptesis hemiptera might go into the 

 division having the metathorax with areas, as might also 

 Mr. Marshall's two species ; then Aptesis hemiptera 

 might be a Theroscopus by the structure of its 1st abdo- 

 minal segment. Catalytus, again metathorax without 

 areas, contains one species or variety which has the 

 wings of Aptesis, and which I unfortunately was led into 

 describing as a new species {vide Trans. Ent. Soc. Lond., 

 1882, p. 141), Aptesis Foersteri = Catalytus Mangeri = 

 ? C. fulveolatus, var. == ? C. longipennis, var. 



Hemimachus piceus, n. s. 



Niger, pedibus maximis ex parte piceo-rufis. 



Head, thorax, and 1st segment of abdomen opaque, 

 finely reticulate ; remainder of the abdomen smooth, 

 but densely covered with fine pubescence. Head above 

 transverse, slightly sloping behind the eyes ; face longer 

 than wide ; cheeks slightly buccated ; clypeus separated 

 from the face ; apex widely rotundate ; mandibular teeth 

 subequal. Antennas rather more than three-fourths the 

 length of the body ; the first three or four joints of the 

 flagellum subequal in length, about three times as long 

 as wide ; the 1st joint of the scape hardly so long as 

 wide ; antennas and face pubescent. Thorax about one- 

 third longer than high ; mesothorax trilobed, the lines 

 reaching to the middle of the disc ; scutellum convex, a 

 little higher than the mesothorax, keels only just 



