1909.] 



211 



lection in the British Museum. The former author found it at 

 Nantun, near Ajaccio, and thrice in England, principally at Freshwater 

 Bay, in Pembrokeshire, where the females wdre associating with 

 Myrmica scabrinodis ; there is a specimen from Birch Wood in his col- 

 lection. I possess but two examples, one captured at Greenings, near 

 East Grinstead, in J uly, 1872, by Wilson 8aunders, and the other by 

 myself on my study window in Monks Soham House, Suffolk, on July 

 1st, 1905. Near Vienna, Giraud once found both sexes hovering over 

 " une societe de tres petites fourmis," early in the same month (Verb, 

 z.-b. Ges. Wien, 1857, p. 11). In France De Gaulle records Pachy- 

 lomma huccata as associated with Lasius hrunneus and Myrmica scabri- 

 nodis, and the Continental Pachylomma cremieri, Kom., with Lasius 

 fuliyinosus and Formica rufa (Cat. Syst. et Biol. Hym., 1908, p. 86). 

 The latter, of which Giraud has also given an interesting account, 

 extends thence to Kussia. 



SPILOMMA., 71. n. 



Head not large, very strongly transverse, and distinctly broader than the 

 thorax ; eyes very large, ocelli not prominent ; face narrow and very strongly con- 

 cave. Antennae filiform, with twenty-nine flagellar joints ; as long as the body. 

 Thorax very short and somewhat gibbous ; prothorax neither short nor concealed ; 

 mesonotuui dull with very obsolete notauli, basally longitudinally aciculate before 

 the glabrous scutellar fovea ; metathorax short, shagreened, and longitudinally cari- 

 nate in the centre, sparsely pubescent and normally convex, with a longitudinal 

 impression running down each side to the coxeb. Scutellum distinctly convex, with 

 its disc deplanate ; postscutellum tuberculiform. Abdomen glabrous and strongly 

 nitidulous, much longer than the head and thorax, falciform, and laterally strongly 

 compressed ; basal segment emitted from apex of thorax, narrow, subcylindrical, 

 discally aciculate in the centre, whence the spiracles are not very prominent ; second, 

 fourth and fifth segments of equal length, shorter than the first, narrow and cylin- 

 drical ; third segment but two-thirds the length of the second ; terebra distinctly 

 exserted, as long as the basal segment, pilose, with the valvulse flat, not very slender 

 and apically truncate. Anterior legs long and slender ; the hind ones very long, 

 with elongate coxae, and their tarsi not spatuliformly dilated, basal joint not quite 

 as long as the following united. Wings somewhat narrow and not ample, with the 



neuration distinct ; two cubital 

 cells ; radial cell narrow, elongate 

 triangular, and extending to apex 

 of wing ; stigma narrow, elongate, 

 lanceolate and externally subcon- 

 cave, emitting the radial nervure 

 beyond its centre ; basal abscissa 

 shorter than the breadth of the 

 stigma; second elongate; cubital 

 nervure obsolete, rising fi-om the 

 U 2 



