INSECTA. aZe 
Phasia Latr. Antenne short, the third joint a little longer 
than the second. Abdomen depressed, downy, quinqueannulate. 
Wings divaricate, broad, often coloured, thickish. 
Fig. ScHELLENB. Tab. 1. fig. 2; Guir. Zconogr. Ins. Pl. 102, fig. 4. 
Sub-genera: Hyalomyia, Alophora, Hlomyia Rosin. 
Trichopoda Uatr. 
Xysta Meia. Antenne short, two last joimts sub-equal. Abdo- 
men convex, oval with five rings or six, pubescent or sub-nude. 
Wings lanceolate, divaricate. 
Gymnosoma Mrtc. Antenne moderate, with two last joints 
sub-equal. Abdomen quadriannulate, globose, sub-nude. 
Sub-genera: Cistogaster Latr., Strongygaster Macq. 
Ocyptera LATR. Antenne moderate, with third joint longer 
than second, linear, compressed. Abdomen elongate, subsetose, 
quadriannulate. 
Phania Mrie. Antenne moderate, third joint elongate, linear, 
compressed. Abdomen oval, subsetose, quadriannulate, inflexed 
towards the extremity. 
Lophosia Mric. Antenne moderate, third joint the largest, 
compressed, obtrigonal. Abdomen cylindrical, quadriannulate, 
subsetose. 
Curtocera Macq. 
Tachina Muic., Echinomyia DuMER. Antenne moderate or 
short, with second joint often long, sometimes exceeding the third ; 
triarticulate seta at the base of the third joint. Abdomen conical 
or oval, quadriannulate, setose. 
A numerous genus, which beyond any other gives us an idea of the 
inexhaustible riches of nature in the forms and modifications of animal 
organisation. EIGEN counts more than three hundred species which are 
found in Europe, and of the foreign species, yet known so fragmentarily, 
still more than a hundred have been described. In some, as for instance in 
Tachina grossa, the second joint of the antennz is much larger than the 
last (see De GrER Jns. vi. Pl. 1. fig. 2); to such species LATREILLE 
applies exclusively the name of Echinomyia, to which accordingly Tachina 
larvarum does not belong, and which only answers to a small part of the 
Tachine of MBIGEN. 
21—2 
