94 ADDITIONS AND CORRECTIONS. 



Loew, H. — In the Berliner Entomol. Zeitschr, vol. ii. p. 109, 1858. Plecia 

 longipes, n. sp. New Orleans. 

 " In the Verhandl. Wien. Zool. Bot. Ver. 1858, p. 592 ; Tabanus sep- 

 temtrionalis, n. sp. Labrador. 

 Bigot, J. — In Ramon de la Sagra's Historia jisica de la Isla de Cuba, vol. vii. 

 p. 329, 199 (1857). Several new diptera from Cuba. 

 " Dipterorum aliquot nova genera. (In Revue et Magasin de Zoologie, 

 1859, No. 7.) Cryptineura hieroglyphica, nov. gen. et spec, Ortho- 

 neurae proximum. N. Orl. 



Prof. Loew, the well-known German dipterologist, communicated to the 

 author of the Catalogue, etc., several observations respecting the nomen- 

 clature and the systematic arrangement adopted in this work ; they may 

 find their place here : — 



The generic name Asthenia (p. 4) has been given long ago to a hyme- 

 nopterous insect; the same genus has been described by Macquart under 

 the name of Blepharicera, and by Loew under that of Liponeura. Mac- 

 quart's name, modified into the more correct Blepharocera, ought to be 

 adopted. 



The subdivision of Leptis (page 36) in two genera, Leptis and Chrysopila, 

 is recommended. The following species, according to Mr. Loew, belong to 

 Leptis: albicornis, Boscii, intermedia, mystacea, punctipennis, vertebrata. 



Syneches (page 37) does not belong to the Leptides, as Walker has it, 

 but to the Ilybotinse (page 44). As some of the species enumerated in the 

 genus Hybos might also belong to Syneches, it would be, perhaps, better to 

 drop the latter name for the present, and to place S. simplex Walk, under 

 the head of Hybos. 



The orthograph Thereua is, according to Mr. Loew, more correct than 

 Thereva (page 38). 



There is every reason to replace the name Heleodromia (page 46) by that 

 of Clinocera Meig. 



Myopa stylata (page 61) is no Myopa at all, and should be called, there- 

 fore, Stylogaster stylatus. 



If the family of Muscidx (p. 63) is adopted in such a wide sense as has 

 been done in the Catalogue, there is no reason to separate the Stomoxydse 

 (p. 61) from them. 



The genus Prosena (page 61) has its true location next to Dexia. 



Instead of the horrible name of Cuterebra (p. 61), Trypoderma would do 

 better, and has been more in use already. 



Homalura plumbella (p. 82) is a Siphonella. 



The genus Oxycephala (page 83) is identical with Pyrgota, and must be 

 dropped. Oxyc. fuscipennis Ma,cq.=Pyrgota undata. Ox. fenestrata is a 

 variety of the same species. The genus Pyrgota must be removed to the 

 immediate vicinity of Ortalis. 



Meromyza and Siphonella should be placed next to Chlorops. 



To these remarks of Mr. Loew I would add that the generic name of 

 Aporosa (page 7) should be replaced by that of Geranomyia, previously 

 given by Mr. Haliday to the same genus, and that the genus Ilesperinus 

 (page 9), placed by its author himself among the Tipulidse terricolx, be- 



