UIPTERA. 
416 
continually changing their position in the mass. At the close of their march^ 
when fatigue or the want of nourishment causes the larvoe to rest for a time, 
the larvce composing a train collect into a hall, which gradually diminishes 
in size and finally disappears, by the burrowing into the mould of the larvae 
which are lowest in the mass, Noyricki describes the observations made by 
previous naturalists on these larvae and the fly from which they originate, 
and finally indicates the superstitious notions to which they have given 
rise, 
E. D. Cope communicates (Proc, Acad. Nat, Sci. Phil. 1867, pp. 222-226) 
somo particulars as to the occurrence in Pennsylvania of simke-lilce bodies 
of larvae, probably belonging to somo fly of the genus Sctara, apd analogous} 
to those kpown as the lleerwurm” in Germany. 
Bibionid^, 
JBihio elegans, n,, Jaennicke, Abh. Senck. Ges. vi. p, 317, Australia j JB. 
castanipcsj sp. n., Jaen. ibid., Illinois. 
Plccia minor f sp. n., Jaennicke, 1. c. p. 818, Brazil. 
TiPULIDA5, 
Anisomera, H. Loew (Zeitsclir. ges, Naturw. xxvi. pp. 395- 
426) subjects the species which have been referred to this genus 
to a critical revision. The earliest species was described by 
Latreille under the name of Hexatoma^ which was suppressed by 
Meigen on account of his own genus of the same name. Loew 
considers that it is not now desirable to restore Latreille^s name 
to this genus, Meigen^s Hexatoma (Tabanidse) being generally 
received. Meigen established the genera Nematocera and Ani“ 
somera, which he subsequently united under the latter name. 
The species referred to this genus have got into much confusion 
as to their synonymy ; they are all discussed by Loew, who ad- 
mits the following species, which are characterized as well as 
the genus : — 
1 & 2. longipes and <^qualis, spp. nn. (vide infrh). 8. A. hicolor (Meig. I.) 
^gaedii (Meig., Schin.). 4. A, ohscura (Meig.). 6&Q. A.saxonummd 
hurmeisteri, spp. nn. {vide in/rd,). 7. A, vittata (Meig.). 8. A. nuheculosa 
(Burm.) = (Schin.). 
Tipula striata (Fab.) and Hexatoma nigra (Latr.) are not identifiable. 
Peronecera fuscipennis (Curt.), characterized by Loew (1. c. pp. 422-424), 
which has been regarded as synonymous with A. nigra by Walker, is gene- 
rically distinct. 
]\IiK changes the name of his Geranomyia macidipennis to G, calopteraj 
as Aporosa macidipennis (Macq.) is a Geranomyia. Verh. zool.-bot. Ges. in 
Wien, xvii. p. 423. 
Chironovms stercorarius (Be G.). On the occurrence of this species in 
in abundance in a cornfield, see Kiinstler, Verh. zool.-bot. Ges. in Wien, 
xvii. p. 836. 
New genera and species : — 
Farina, g. n., Jaennicke, Abh, Senck. Ges. vi. p. 318. Allied to Limnohia^ 
