298 BRITISH ICHNEUMONS. [Idiolispa. 



3. coarctatus, Grav. 



Cryptits icarctatiis, Clr. I. E. ii. 571 ; Tasch. Zeits. Ges. Nat. 1S65, p. 94, i. 



Head black, palpi whitish ; clypeus discreted and apically truncate. 

 Thorax immaculate ; metathorax short with no longitudinal costae ; 

 petiolar area large and elongate, discreted, with its central area nitidulous 

 and broadest basally, rugose apically, its lateral areae short, narrow and 

 transversely rugose ; spiracles small and circular. Scutellum black. Ab- 

 domen nearly glabrous, black, with segments two, three and base of fourth, 

 red ; anus immaculate ; basal segment strongly elongate, claviform and 

 sub-canaliculate, with no tubercles. Legs black ; the anterior with tarsi, 

 tibiae and femora, except basally, red ; intermediate tarsi infuscate ; hind 

 calcaria white. Wings hyaline; areolet pentagonal, externally sub-pellucid ; 

 nervelet short ; stigma and costa black, radix and tegulae stramineous. 

 Length, 9 mm. 



The position of this $ has not been determined ; Gravenhorst says it is 

 similar to F. peregrinator, with shorter legs and less pentagonal areolet. 

 The short metathorax and elongate petiolar area appear to place it in 

 either this genus or the next, though the circular spiracles and pentagonal 

 areolet agree ill therewith ; the length of the petiolar area appears to 

 exclude it from Pycnocryptus. 



The only British record of this unsatisfactory species is from the Land's 

 End by Marquand ; the specimen was named by Bridgman and is in 

 Luff's collection. 



GONIOCRYPTUS, Thomson. 

 Thorns. O. E. v. {1873), 490; Trychosis, Forst. Verb. pr. Rheinl. 1868, p. 187 (part). 



Head sub-triangular, vertex abruptly declived behind ocelli ; cheeks 

 somewhat elongate, scrobes well defined, epistoma deplanate ; clypeus 

 apically broadly rounded and mutic. Antennae elongate, apically attenu- 

 ate ; of $ sub-spiral. Pronotum very short ; epomiae angulated and 

 reaching mesonotum, which is not declived in front ; notauli nearly want- 

 ing ; metathorax very short and convex, with pleural costae not reaching 

 base and terminating far behind the spiracles ; apophyses sub-obsolete ] 

 central mesosternal sulcus carinately elevated behind, the lateral ones 

 short, broad and indeterminate ; epicnemia abbreviated above. Scutellum 

 convex and abruptly declived apically. Abdomen sub-compresso-fusiform, 

 with the first segment elongate, deplanate and gradually dilated towards 

 the apex ; post-petiole not transverse and hardly deflexed ; second and 

 third segments with spiracles behind the centre and some distance from 

 the lateral margin ; terebra shorter than petiole, its spicula obsoletely 

 spinulose. Legs not very stout : tibiae nearly mutic, front ones not 

 dilated ; calcaria elongate. Wings with radial cell short, areolet very large 

 and parallel -sided ; discoidal cell twice broader at apex than at base ; 

 lower wings with nervellus intercepted in or above the centre and the 

 posterior nervure defined nearly to the outer margin. 



This genus has received considerable attention on the Continent from 

 Thomson and Tschek since the publication of the last British Catalogue. 



