300 
MODERN SYSTEM. 
Sp. 1 . Scat, merdaria. Latr., Leach. 
Inhabits cow-dung. 
Genus 545. ANTIIOMYIA. Meig., Illig., Latr., Leach. 
Antennai shorter than the head : head hemispheric, transverse: vertex 
inclined : body not much lengthened. 
Sp. 1. Anth, pluvialis. Latr. 
Inhabits woods. 
Stirps 4. — Antenna inserted near the upper part of the head, not seti- 
gerous : palpi internal : halteres visible : anterior legs differing in form 
from the others. 
Genus 540. PTPUNCULUS. Latr., I.ench. 
Antenna two-jointed, the last joint subulated at its extremity : anterior 
legs simple. 
Sp. 1. Pip. campestris. Latr. 
Inhabits meadows. 
Genus 547. SCENOPINUS. Latr., Fair., Leach. Cona. Schelr 
lenbcrg. 
Antenna threc-jointcd : anterior legs simple. 
Sp. 1. Seen, niger. Latr. 
Inhabits houses near woods. 
Genus 548. OCHTHERA. Latr., Leach. Macrociiira. Meig. 
Anterior legs raptorious : antenna terminated by a bearded seta. 
Sp. 1. Och. Mantis. Latr. 
Once taken in Devon by Dr. Leach. 
Stirps 5. — Antenna frontal, very short: palpi internal : halteres entirely 
or partly concealed : wings divaricating. 
Genus 549. PIIASIA. T.atr., Leach. Thereva. Fair., Walck-, 
Meig., Pans. 
Antenna distant, sub-parallel, last join t subquadrate, with a biarticulate 
seta: (body short: abdomen depressed, semicircular : wings large.) 
Sp. 1. Phus. variabilis. Leach. 
Musca hemiptera. Linni. 
Stirps 0. — Antenna frontal, as long as the face : palpi internal, or 
partly concealed : wings divaricating. 
Genus 550. MUSCA of authors. 
Antenna with the third joint very much longer than the others : abdo- 
men moderately long, subacuminate. 
Sp. 1 . Mas. vomitoria (common blue-bottle fly). Latr. 
Inhabits every where. It is the insect that deposits its eggs on meat, 
which are commonly denominated fly-blows. 
