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Psyche 8:52, 1897.

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PSYCHE.
[April 1897.
NOTES ON NEW COCCIDAE.
BY T. D. A. COCKERELL, N. MEX. AGR. EXP. STATION. i. A NEW COCCID PEST OF GREEN-
HOUSES.
Yesterday (Feb. 121, in the greenhouse of the N. M. Experiment Station, Prof. Geo. Vestal directed my attention to some small ornan~ental plants, which were swarming
with a scale-insect. The plants had been reccivcd from the Colorado Experiment
Station, and were not noticed to be infested on arrival; but they must have had some of the Coccids upon them at the time. The
name of the plant is given to me by Prof. Vestal as Pilea arburea or ĺ´fitlos (it is not at all pilose), but I do not find these names in the Index Kewcnsis.
J recognised at once that the Coccid was new to this country, but I quite expected it would prove to be Newstead's Lecawiwn
minimum, described from hothouse plants in England. However, to my surprise, it is
quite distinct, and new, so I describe it here- with.
Lecaaium fta~~eolum, n. sp. 9 Scale
(gravid) just 2 nun. long, less than I mm. broad, fairly con\ ex, tolcrably shiny, light yellow, with the black eyes conspicuous. It is like a very small pale L. hesferidwn, but narrower. A little spot of white secretion at each stigmata1 incision. Parasitised scales turn black. Half-grown examples are del- icately reticulated with pale brown lines. Thc insect is viviparous, and the newly- hatched young are very pale pink.
!$ Adult, boiled in caustic soda, turns
pinkish, but the skin is colorless. Dermis not at all reticulate or tessellate. Antennae very pale, slender, ^-segmented, the segments very distinct, 3 longest, but 4 nearly as long; then 2 and 7 equal in length, obviously
shorter than 4; then i, then 5, then 6, a lit- tle shorter than 5.
5 +6 not as long as 4.
I~orn~ula 34 (27) 156.
2 and 4 each with a
conspicuous pair of bristles near the end, i also with a pair, but further apart; 5 and 6 each with a conspicuous bristle; 7 with
many bristles, one at its tip about as long as itself. Legs small and pale; tarsus about or nearly ,^ length of tibia ; tarsal digitules long, slender but of more than filiform thickness, with stnall but very distinct oblique knobs; digitules of claw extending considerably be- yond tip of claw, fairly but not very stout, with large knobs. Trochanter with a very long hair, tibia with a conspicuous bristle on inner side near end. Anal ring with only four hairs, these very long and quite stout. Anal plates rather long and narrow, their outer sides about equal, three bristles at hind tip. Stigmata1 spines brown, in threes, one very long and stout, the other two
minute and narrow-conical. Margin with
rather numerous long slender spines, which are blunt at tips.
Hab. On stems of Pilea in greenhouse of
N. M, Agricultural Experiment Station,
Mesilla Park, N. M.
L. flaveoltim differs from maculatam,
Sign., in being narrower, and entirely lack- ing the dorsal row of spots which gave the latter its specific name. It differs from mini- mum, Newst., by the dermis being not tesset- ate, the second segment of antenna being much longer, the 7th not so long, and con- spicuously shorter than 3, the tarsi conspicu- ously shorter than tibiae, the digilules longer than in Newstead's figure. It difl'ers from rvbeZlrm, Ckll., by its dermis not being crowded with gland-spots, its claw-digitules not or hardly bulbous at base, and the longer 4.111 segtnent of antenna. It differs from nanum, Ckll., by the longer tarsal digitules, Psit-he 8 052-53 (pre. 1903) hfp //psyche aitclub orgWS.0352 htd



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April 18qi.I PSYCHE. 53
the much longer 4th antennal segment, and the quite large marginal spines. None of these similar species have been found in the V. S.
2. A JAPANESE COCCID QUARAN-
TIKED AT SAN FRANCISCO.
Le.ttc.as$i.~ japonicus, n. sp. - $ Scales numerous on the twigs, pyriform, about the form of Mytilasjis -poinorz~m, but somewhat smaller, whitish with a stron":re.vish-
ochreous tinge, exactly the color of the twig on which they rest; exuviae strongly con- trasting, dark chestnut color. Thc second skin is large and narrow, only slightly over- lapped by the first.
$ Elongate, after boiling in soda pale
orange-yellow; four well-developed lobes, similar in form, but the second snlaller than the first, all about as far apart as the breadlh of ;I mcdiiin lobe. trilobcd, the median lobule largest, the others very distinct and soine- what spreading. The wide areas between the median lobes, and between the first and
second, aie each occupied b~ a pair of deeply hifid plates, which do not extend to the !e\-el of the ends of the lobes. The margin ceph- dad of the second lobe is gently crenate, the low broad elevations resulting, about seven in nuinber, being armed with three or more niinute spinules, really rudimentary plates. Surfacc of hind portion conspic- uously striate, anal orifice a long distance from hind end, no groups of ventral glands, but numerous large transversely elongate scattered glands. The whole lateral mai-gin of the abdominal portion of the insect pre- sents a thickened striate c d ~ , with broad serrate chaff-like scales at very frequent intervals.
Hab. -- On broom fruin Japan, found Dec., 1896, by Mr. Alex. Craw in the course of his horticultural quarantine work at San Fran- cisco.
Note. - Since the above was written, Prof, Gillette has found the Leco~zhn $'az,eoliwi at the Colorado College. The proper name of the pliint, according to Mr. Cowtjn, is Pitea micro//(yI/nm.- T. D. A. C., March 2.
THE LARVAL STAGES OF ARCTIA ANNA GROTE.
BY HARRISON G. DYAR, NEW YORK, N. Y.
Eggs were obtained from a female moth of the perse-phonc! form at Greenwood Lake, ti. J., in June.
Eyg'.
Neatly conoidal, the base flat and
concave; pale yellowish white, shining;
the reticulations very fine, broild, not shsu-pi rounded, the areas between forming shallow indistinctly margined pits; height, .6 inin., diameter .g rnm.
Stage I. Head bilobed, the lobes dark
bliickisli brown, clypeus pale, whitish; width .4 mm. Cervical shield narrow, dusky; body whitish, with long, stiff, dark setae; warts pale; later both warts and leg-plates shining dusky gray, large. Sctae normal, the sub- primaries absent, but wart iii on the abdo- men bears two hairs, including the large subdorsal wart on joint 13 which has four hairs. At the end of the stage the appear- ance is whitish, the segments faintly brown dotted, not distinctly handed, thewarts dusky, not contrasting.
Staye If. Head bilohed, the lobes shining blackish, clypeus pale; u-idth .55 mm. Body whitish, shaded with red-brown around the dusky warts, giving the appearance of longi- tudinal bands, especially a pale dorsal line. Warts hairy, normal, large except i which is very small and vi which is moderate. Hairs stiff, black, :i few longer ones posteriorly from the subdorsal wart on join1 13. After eating, the body becomes sordid greenish, the larva consequently appearing dark.
Staye fr1.
Head shining black, the cIy-




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