Rhithrogena semicolorata, Curt., very common.

R. sp.?, R.

-sp. ?,

R. -sp. ?, these three forms may only be varieties of semicolorata, but they differ very considerably from that species, but owing to not having specimens preserved in fluid, they cannot satisfactorily be made out.

Heptagenia elegans, Curt., common. H. longicauda, Ste., everywhere. H. lateralis, Curt., a few were taken.

ODONATA.

Leucorrhinia dubia, Van d. Lind., one specimen was taken in Glen Cannich. Sympetrum striolatum, Charp., common. S. scoticum, Don., abundant in Glen

Cannich.

Libellula quadrimaculata, L., near most of the Lochs.

Cordulia metallica, Van d. Lind. ; a few specimens were taken after much hard work. C. arctica, Zett. ; I have a specimen of this species in my cabinet taken by Dr. Buchanan White, many years ago in Strathglass, but I was not fortunate in observing the species myself, although Dr. White gave me all the assistance he could. Cordulegaster annulatus, Latr., in many localities.

Eschna juncea, Müll., abundant in all the Glens.

Pyrrhosoma minium, Hans., a perfect pest at all the Lochs.

Agrion cyathigerum, Charp., equally common with the last species.

This gives as the result of my trip 111 species, or, excluding the four doubtful species of Ephemeridæ, 107, more than half this number being taken up with the Trichoptera, namely, 63; the NeuropteraPlanipennia absorbing 13; leaving the remainder for the PseudoNeuroptera.

In conclusion, I have only to acknowledge the kindness with which my friend Mr. McLachlan has unravelled many of the more knotty points among the Trichoptera, and the assistance I have received from the Rev. A. E. Eaton when working at the Ephemerida. 207, Sauchiehall Street, Glasgow:

April, 1882.

THE TARSAL AND ANTENNAL CHARACTERS OF PSOCIDE.

BY PROF. H. A. HAGEN.

By a mere chance I see that a statement recently published by me concerning the tarsal structure of Psocida confirms, in a most satisfactory manner, that made by Prof. Westwood in 1857 (Proc. Ent. Soc. Lond., series 2, vol. iv, pp. 63, 64) regarding certain Coleoptera.

Being occupied with the Atropina, I was astonished to find that the young forms have only two-jointed tarsi (instead of three-jointed, as is found in the imago), but the last joint, internally, in the middle, shows a more or less visible division, where the 3rd joint (the median)

will be formed, and just below it are one or two small bristles. I have observed this in A. divinatoria (reared by myself), succinica, and oleagina, and also in Hyperetes tessellatus. So long as the young have only two-jointed tarsi, the antennæ have also less joints. Thus, in A. divinatoria the latter have only 12 instead of the 15 of the imago; in Hyperetes the proportions are 13 to 23. But, although the third (middle) joint of the tarsi is produced by a division of the apical, it is just the contrary with the antennæ. In these the two thick basal joints, and the apical joint, are not divided; but in some species all the intermediate joints are so. Hyperetes is in the latter case, all the 10 intermediate joints being divided in the imago, as I can show from preparations. It is a remarkable fact that the mysterious Hyperetes shows, in its earlier stages, precisely the normal number (13) of joints for the Psocide. I am not prepared to give an opinion as to this genus. Other genera, such as Cæcilius, commonly considered to have only two-jointed tarsi, possess a small aborted third joint, just as occurs in many Coleoptera.

Cambridge, Mass.:

1st April, 1882.

FOOD-PLANTS AND TIMES OF APPEARANCE OF THE SPECIES OF PSYLLIDE FOUND IN GREAT BRITAIN, TOGETHER WITH OTHERS WHICH MAY BE EXPECTED TO OCCUR HERE.

BY JOHN SCOTT.

The publication of the synonymic list (vol. xviii, p. 253) corrected, as far as I possibly could, to that time, naturally led me to think of giving, in a collected and comprehensive form, as complete information as possible of the food-plant of each of the species, together with the time when the latter may be looked for; and, although they may be found a little earlier or later than the time here indicated, yet this shows when they were actually taken. But very little is still known of the earlier stages of many of these insects, of others nothing whatever, and the solution of this problem in any one of these cases I consider to be of much greater importance than the capture of the perfect insect itself. I have already, in vol. xvii (p. 132), explained my mode of rearing them, and how easy this is to be done, so that I need not repeat it. For the purpose of keeping this table as simple as possible, I have only used the old and well-known generic names; the recent sub-divisions being given in the list above referred to.

SPANIONEURA Fonscolombei, Först.*...Buxus sempervirens, Linn.

............. Berberis vulgaris, Linn.

....Cardamine sylvatica, Link.

Wings bright bronze-brown shot with purple ; posterior-wing with two transparent spots close to the base, the fringe black; body brown, and the anal tufts bright red. Antennæ and legs black. Expanse of wings, 1 in.

Hab. N. E. Borneo, Sandakan (Pryer).

:

Mus. Druce.

This species is allied to S. chalybea, Butler, from Singapore.

*Not yet ascertained to be British.

a There is no proof that the Ps. pyri of Curtis is identical with that of Linn., and, therefore, I include it amongst those not yet ascertained to be British.

The plants are not British, but, probably, the insects may be found on some of the allied species.

c Pear-trees in gardens should be carefully examined, as several of the species infesting the wild pear, if not the whole, are found upon them.

d Although Förster says he had one specimen from Mr. Walker, I have not seen any of recent date, and have not, therefore, included it in my former list. The Ps. notata, Flor, is synonymous.

Family SPHINGIDÆ.

Sub-Family CHEROCAMPINE.

PANACRA RUTHERFORDI.

Primaries above dark brown, speckled with reddish-brown along the costal margin, crossed from the apex to near the base by a wide, pale-coloured, straight band, bordered on each side by fine blackish lines, the apical margin slightly dentated: secondaries dark brown, paler at the base; body pale brown. Under-side, uniform dull brown, thickly speckled with pale ochreous scales.

Expanse of wings, 3 in.

Hab.: West Africa, Cameroons (Rutherford).

Type, Mus. Druce.

This species resembles P. vigil, Guér., but is easily distinguished by the straight band of the primaries and much darker colour.

CHROCAMPA GODMANI.

Primaries dark greyish-brown at the base, which colour extends beyond the middle, the apical third ochreous, clouded with dark brown; several indistinct lines crossing the wings from the inner margin to the black discal dot. Secondaries shining dark slaty-brown, the outer margin dark brown, and a small ochreous spot close to the anal angle; head, thorax, and abdomen above, dark brown, the sides black, bordered above with red, and beneath with white lines, under-side pale brown. Under-side of primaries dark brown, richly clouded with red and yellow scales near the apex; secondaries greyish-brown, crossed in the middle by three indistinct dark lines speckled with reddish scales. Expanse of wings, 33 in.

Hab. Panama, Volcano de Chiriqui (Champion).

:

I have only seen one specimen of this species: it is very distinct from any that I am acquainted with, but comes nearest Ch. falco. I hope shortly to figure it in the "Biologia Centrali-Americana."

DAPHNIS ANDAMANA.

Much like D. Horsfieldii, but rich red-brown; primaries crossed beyond the middle by a broad, dark brown band, palest on the outer margin, a dark brown spot close to the base in the middle of the wing. Secondaries chocolate-brown, crossed by a sub-marginal pale brown line from the middle of the costal margin to the anal angle. Under-side pale reddish-brown, both wings crossed by four darker waved lines; head, thorax, and abdomen dark brown. Expanse of wings, 23 in.

Hab.

Andaman Islands.

Mus. Druce.

This species seems somewhat intermediate between D. Horsfieldii and D. Baga, but more closely allied to the latter.

DAPHNIS TORENIA.

Primaries fawn-colour, crossed beyond the middle by a broad brown band, and mottled with brown to near the apex; a large, oval-shaped, brown spot close to the base; the inner half white, with a small black dot in the middle. Secondaries rich chocolate-red, excepting the basal third, which is almost black; an indistinct whitish line, close to the anal angle, extending nearly to the middle of the wing.