1881,] Entomology. 567 
BLEPHAROCERID&.—The very interesting discovery, by Dr. Fritz 
Miller, of the earlier states of Paltostoma torrentium, has been 
followed in rapid succession by that of other Blepharocerid larvae 
and pupz in various parts of the globe, and it seems that most, 
if not all, species of Blepharoceridz agree in the mode of devel- 
opment and in habit. Thus Dr. F. Brauer finds that pupz from the 
of water. The surface of the rock was coated with the pupe. 
Another species (Liponeura brevirostris Low) has been described 
in the larva and pupa states by H. Dewitz in the Berlin Enso- 
mologische Zeitschrift (Vol. xxv, p. 61-66). The latest contribu- 
tion to the natural history of these interesting Diptera we owe to 
- A. Wierzejski of the University of Krakau, who gives in the 
Zoologischer Anzeiger (No. 81, p. 212-216) full descriptions of the 
larva and pupa of another Blepharocerid. He found them ina 
mountain brook in the Tatra mountains, adhering to the rocks in 
the swiftest part of the current. The larve are able, by means 
of the six suctorial disks on the ventral side not only to with- 
Stand the swift current but also to move freely about, usually side- 
wise. Dr. W. did not succeed in rearing the perfect insect, as 
the larve and pupz soon perished when confined in standing 
water; but from examination of the pupa he is confident that his 
Species is very nearly allied to Blepharocera fasciata. He prom- 
For those not familiar with the descriptions already given of 
the larvee and pupe of this interesting group of Diptera we would 
add that the larva is one of the most remarkable in the insect 
world. It has apparently but six joints to the body, and its gen- 
¢ral appearance recalls that of Ased/us, the joints being, however, 
deeply cut on the sides and widely separated. The six-jointed 
character is, however, only apparent, as the last joint is evidently 
_ ©omposed of three, and the first joint is also evidently composed 
