Article beginning on page 317.
Psyche 5:317, 1888.

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-February 18p.J PSYCHE. '6il
logue of 1884 is put down as a variety of mo~zi?ivaga. If, therefore, he is himself so uncertain of the true position of these forms, he cannot expect others to follow him blindly, and though many years
must elapse before any certain conclu-
sion will be come to, I venture to think that the arrangement I have adopted
represents the facts shown by my col-
lection, including about fifty specimens from all the States where the species
occurs and from many of the collections
which supplied his own materials. If
it should eventually prove that the Pa-
cific coast form is not -separable, from the Rocky Mountain form montivaga,
it may be better to use the name eury-
nome in preference to montivaga or
eyieis, because both Behr's and Boisdu-
val's descriptions which have priority
over Edwards's, can only be identified
with doubt. My specimens of m i -
vaya and egleis, all come from the
Sierra Nevada, and not from the Mt.
Shasta district, where monticola and its vars. are so abundant; but local infoi-
mation as to their distribution, in this, as in the other cases, is very deficient. INSECTS OF BERMUDA. - The Bermuda
Islands by Professor Angelo Heilprin con- tains chapters on the insects, arachnids and myriopods of the Bermudas by Drs. P. R. Uhler, George Marx and the late Mr. C. H. Bollman. Dr. Uhler considers the species already found as almost entirely Nearctic in character but anticipates the discovery of multitudes of Neotropical forms. He does not enumerate the hymenoptera, lepidoptera, and coleoptera and his lists of the hemiptera, homoptera, pseudone~iroptera, dermaptera and diptera include but fifteen species or less than half the number recorded in Mr. J.
Matthew Jones's "Visitors Guide to Bermu- da." Dr. Marx mentions seventeen species of spiders, describing Lycosa atlautica as new. Mr. Bollman notes Julus morelefi, Sfiro- bolus heil-prini n. so., Meci.~toce~hciZu.~ guild- '@, Scolope~ra subs/ini-pes and Lif hobiiis la$idicola as all the myriopods that have been reported from the Bermuda Islands.
DESCRIPTION OF THE LARVA OF MEGALO-
DACNE FASCIATA, FABR. -- COLOR. Body
sordid white, with the patches on the seg- ments above piceous; head light brown,
mandibles piceoiis.
HEAD subglobose, small, smooth, shining. CYPLEUS transverse, about five times as
broad as long.
LABRUM somewhat narrower than the
clypeus and about twice as long, anterior margin straight with a series of strong hail-& ; angles rounded; sides, slightly oblique. MANDIBLES short and thick with the apex
strongly bifid.
ANTEKNAE very short; two jointed; first
joint short, and about three times as broad as long; second joint more slender and about twice as long as broad with the apex some- what rounded.
MAXILLAE elongate, rounded at the apex
with hairs and a few bristle-like short tnb- ercles.
MAXILLARY PALPI three jointed ; first joint much broader than long; ~econd joint, less wide; third joint more slender and longer. LABIUM subcordate, apex rounded ; base
much broader.
LABIAL PALPI two jointed; first joint, sliort, thick, twice as broad as long; second joint more slender, broader at the base than apex and about twice as long as broad.
BODY elongate, segments all about equal
width and length except the first which is



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3 18 PsW. [February ;$go.
narrower; last segment also narrower and bluntly rounded at the posterior extremity with two very short, pointed tubercles. On each segmentisa transversely oblong, rugose, corneous patch divided in the middle by a narrow dorsal line.
LEKGTH about 14 mm. WIDTH about
4 mm. Lives in numbers in fungus found
on stumps and decaying trees.
WilZia tn Beittenmuller.
OBSERVATIONS ON SATURNIA 10. - At
.Lexington, Mass, 3 July, 1888 I found on the upper side of a leaf of false indigo (Ba$- fish tindoria) a cluster of about fifty (so) eggs. Shape: oblong, compressed on two
sides. Attached to the leaf by their ends and touching' each other by their sides. Ar- ranged for most part in rows. Color: white, with black spots on outer end. In some the compressed sides were white, while in others they were partially yellow and in others still there was a black spot on each side. On 4 July I found on the under side of wild cherry (P/*u- mis serotina) leaf a cluster ofabout thirty-four (34) eggs and these had hatched 6 July.
The young larvae were brown, with the head much darker than the body. There were
four rows of spines, sending out star-shaped clusters of concentric branches.
As observed by all writers who have de-
scribed these caterpillars, they have an odd way of following each other, like a file of soldiers, keeping their line of march un- broken, even when turning corners.
The first moult occured 13 July, the second 22 July I have no record of subsequent
moults.
On the 20 July I found another cluster of thirty (30) eggs also on the under side of a wild cherry leaf. These hatched 2 August. Again, 25 July, in the same situation I
obtained a cluster of twenty-three (23) eggs. These hatched I August.
From these various broods of larvae I
raised a large number of imagines, which afforded me a good opportunity of studying the typical and the variational forms. The following are my conclusions : the males differ from one another far less than do the females.
In the latter the typical form has
the fore wingplum-colored and the central dark spot of the hind wings nearly equi- distant from the surrounding dark circle. From the plum-colored form there are several gradations of shade, till we reach a variety in which the fore wings are light brownish grey, with but little of the typical plum color. From the nearly equidistant spot of the hind wings we pass through gradations in which the spot has lost much of its roundness and become nearly contiguous with the circle, on the side towards the outer angle of the wing, till we reach a well marked variety in which the spot is pear-shaped with the small end turned towards the base of the wing, the large end almost touch+ing the outer circle.
While the males present less difference, one from another, there is yet a well marked variety corresponding- to that of the female just described. On comparison I find that out of more than thirty (30) females there are only four(4) with the pear shaped spo~i while of twenty (20) males there are six(6) with this peculiarity.
Through the kindness of Dr. H. A. Hagen
I have examined the specimens of 5. io in the collection of the Museum of comparative
zoology, where I find a very remarkable
variety in a male, captured, I believe, by Dr. R. Thaxter at Newtonville, Mass., 27 June, 1870.
In this specimen the anterior wings were in the main typical; but the plum-colored concentric spots were somewhat peculiar, the outer onea becoming parallel lines instead of spots. It was in the hind winvs that the aberration was most striking. he violet
centre of the dark spot was reduced in size, and the surroundin? dark area extended to -
the circle with only a mere suggestion here and there of the normal yellow belt between the dark spot and the circle. The latter, in its turn, had run over into the yellow belt beyond thus making a highly suffused variety. It is my desire at some future time to
ascertain whether these imaginal variations correspond with any larval peculiarities, and also whether they can be reproduced in
breeding.
Holmes Hin kley.




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