513 
NEUllOPTERA. 
H1PPOBOSCID.E. 
F. Low notices the occurrence of the species of this family as parasites 
upon species of swallows and swifts. Verli. zool.-bot. Ges. in Wien, xvi. 
p. 049. 
Aphaniptera. 
Guyon bas continued his treatise on the Chigoe {Rhynchoprion penetrafis) 
in the Revue et Magasin de Zoologie,18G6, pp. 64, 111, 326, 359, and 446. 
lie describes the localities in which these insects occur, and records among 
their natural enemies the Kaherlac {Blatta amcricana^ Linn.), on the authority 
of Abbeville, and Bees, on that of Rodschied, and suggests that, as he has 
found Chelifer cancroides to be destructive to our common Flea, some Che- 
lifers may probably be found to put a similar check upon the multiplication 
of the Chigoe. In discussing the question of the specific identity of all the 
Chigoes, which he answers in the affirmative, the author ascribes the slight 
differences which have been indicated to differences of habitat, according as 
the insect is parasitic upon man or upon animals. He mentions that men are 
especially attacked by the Chigoe when living in the midst of great numbers 
of domestic animals, regarding the latter as necessary for the preservation of 
tlie species, and citing the pigs as particularly infested by these parasites. The 
description of the structure of the insects is translated from Karsten. In the 
last portion of his memoir, here published, G uyon gives a full account of the 
extrusion of the eggs, which, he says, issue from the spot occupied by the pa- 
rasite through the passage by which it arrived at its destination. He states 
that when the parasite has taken up its position in the skin a vascular appa- 
ratus, through which blood circulates, makes its appearance in tlie abdomen, 
and that the abdomen itself performs a series of movements of systole and 
diastole, which continue for some little time after the extraction of the insect. 
Tlicso movements are said by him to bo isochronous with tlie arterial pulses 
of the individual in which the parasite resides. Guyon describes a curious 
membrane surrounding the body of the parasite during its development and 
which he seems to think presents an analogy to the placenta of mammals. 
The viviparity of the Chigoe is denied by the author, the mature extruded 
generative products being neither larvae nor pupae, but true eggs. 
NEUROPTERA. 
* Separate Work, 
Brauer, Friedrich. Neuropteren der Reise der osterreichischen 
Fregatte Novara um die Erde, &c. Zool. Band ii. pp. 104^ 
with 2 plates. Vienna, 1866. 
In this portion of the great work on the voyage of the Austrian 
Frigate Novara, Brauer fully describes the new species and genera 
of the Linnean order Neuroptcra obtained during the voyage. 
Most of these have already been briefly characterized by the author 
(see 'Record,^ 1864, p. 562, and 1865, pp. 669 & 676). The 
total number of new species is 56, of which 19 belong to the Neu- 
roptera and 37 to the section Pseudoneuroptera of the next order. 
Brauer gives a table of the known species of the genus Anax, 
1866. [voL. III.] 2 L 
