140 BIBIONID^E. 



creasing in length ; fifth much longer than the fourth ; uiigues and 

 onychia distinct. Male. Head broad. Eyes very large, connected 

 above. Abdomen obtuse at the tip. Fern. Head narrow. Eyes small, 

 remote. Abdomen slightly acuminated. 



This genus is nearly allied to Bibio in habit, structure, and 

 economy. 



1. spinatus, Miiller, Faun. Fridr. 695; Zool. Dan. Prodr. 169. 

 1982 (1776). nigritus, OMv.forcipatus, Latr.; Schr.febrilis, Meig. 

 Klass. vulgaris, Meig.; Mcq.; Gim.; Loevv.; Zett. Niger; Mas, alls 

 albis, apud costam pallide fuscis, venis albis apud costam nigris ; Fcem. 

 alls nigricantibus, apud marginem posticum cinereis, apice sublimpidis. 

 Long. 2-3; alar. 5-7 lin. 



Black. Male. Wings white, slightly clouded with pale brown along 

 the costa ; stigma blackish; veins towards the costa black, the other 

 veins white. Fern. Wings blackish, grey along the hind border, nearly 

 limpid at the tips ; stigma and veins black. 



Generally distributed. (E. S. I.) " In profusion everywhere, 

 most so on sand-hills. Appears in conservatories even during a 

 severe frost in the middle of winter." Hal. MSS. 



2. femoratus, Meig. Zw. i. 307. 2 (1818); Mcq.; Zett.; Gim. 

 Nigra, alis albis, stigmate nigro-fusco, venis albis apud costam fusces- 

 centibus ; Fcem. femoribus rufis. Long. 2^3; alar. 56 lin. 



Black. Wings white ; stigma blackish-brown ; veins towards the 

 costa brownish, the rest white. Fern. Femora and fore coxaa red. 

 "Common on Umt>elliferte."ffal. MSS. (E. T.) 



Genus III. SCATOPSE. 



SCATOPSE, Geoff. H. N. Ins. (1764); Schr.; Fab. S.A.; Meig.; Mcq.; 

 Loew ; Zett. Tipula p., L. ; F. E. S. ; D. G. Hirtea p., F. Suppl. 

 Ceria, Scop. 



Corpus parvum aut minimum, elongatum, glabrum, nitidum. Caput 

 rotundatum, thorace angustius. Oculi reniformes, margine antico 

 pro antennarum insertione nonnihil excisi, non connexi. Ocelli tres. 

 Palpi occulti, uniarticulati. Antennas 11-articulatae, porrectse, cras- 

 siusculas, cylindricas, submoniliformes, capite paullo longiores, arti- 

 culo undecimo rotundato. Thorax convexus, ovatus. Scutellum par- 

 vum. Alas longas, nudee, hyalina3 ; vena3 apud costam bene deter- 

 minate, in disco indistincta3. Halteres distincti. Abdomen depres- 

 sum, lineare aut obconicum, segmentis 6 vel 7 distinctis. Pedes sim- 

 plices, nudi, inermes, subasquales. Mas. Abdomen basi subcontrac- 

 tum, apice obtusum. Fcem. Abdomen lineare, apice subacuminatum. 

 Body small, or very minute, long, narrow, smooth, shining. Head 

 rounded, narrower than the thorax. Eyes reniform, remote, slightly 

 excavated at the insertion of the antennas. Ocelli three. Palpi very 



