106 ME. walker's catalogue or DIPTEROUS INSECTS 



Fam. TIPTJLID^, Haliday. 



Gren. LiMNOBiA, Meigen. 



Diy. n. 



Veins of the wings like those of Div. S. Meig. (Zweifl. i. 147. pi. 4. f. 17), 

 with the exception of the subcostal vein, which is not connected with the 

 costal, but emits a veinlet at its tip to the radial. 



7. LiMNOBiA IMPEESSA, n. s., fcem. Fusca, capite nigro, thoracis lateribus 

 testaceo-marginatis, pectore cano, abdomine lutescente fasciis fiiscis, pedibus 

 pallide fuscescentibus, genubus testaceis, alls subcinei'eis venis nigris. 



Female, Brown. Head and antenna} black. Lateral segments of the 

 thorax with testaceous borders. Pectus hoary. Abdomen somewhat 

 luteous, with brown bands. Legs slender, pale brownish ; knees testa- 

 ceous. Wings greyish ; veins black. Length of the body 4^ lines ; of the 

 wings 8 lines. 



Div. n. 



Vems of the wings much like those of Div. E. Meig. (Zweijl. i. 125. pi. 6. 

 f. 2), but the veuilet which connects the subcostal veui vrith the radial is 

 far beyond the base of the fork of the latter, the cubital parts from the 

 radial at some distance from the veinlet which connects it with the 3rd 

 extemo-medial, and the veinlet between the 3rd externo-medial and the 

 subanal is very near the base of the discal areolet. 



8. LiMNOBiA ETJBRESCENS, n. s., mas. Ferrugmeo-rufa, capite pedibusque 

 nigris, pectore ventre femoribus basi coxisque rufescentibus, abdomine 

 vitta dorsah nigTicante, ahs fuseo-ciuereis venis stigmateque nigricantibus. 



Male. FeiTuginous red, paler beneath. Head, antennae and legs black. 

 Abdomen with a blackisii stripe. Femora at the base and coxre reddish. 

 Wings brownish-grey ; veins and stigma blackish. Length of the body 

 5 lines ; of the wings 12 lines. 



Div. n. 



Veins of the vdngs much like those of Div. E. Meig. {Ztv. i. 125. pi. 6. f. 2), 

 but the veinlet wliich connects the sxibcostal vein with the radial is beyond 

 the base of the fork of the latter, and the veuilet between the 3rd externo- 

 medial vein and the subanal is opposite the middle of the discal areolet. 



9. LiMNOBiA PTEEHOcnEOMA, n. s., mas. Ochraeeo-rufa, capite iiigro ?, 

 pedibus nigi'is, femoribus basi coxisque fidvis, ahs cmereis venis fascis. 



Male. Oclu-aceous red. Head black ? Legs black, slender ; femora towards 

 the base and coxae tawny. Wmgs gx-ey ; vems brown. Length of the 

 body 3^ lines ; of the wings 8 lines. 



Div. n. 



Differs from all the other divisions of Limnohia by the contorted petiole of the 

 rachal and cubital veins, and by the radial vein which near its base forms an 

 angle emitting a branch ; externo-medial veins simple ; discal ai-colet sub- 



