Article beginning on page 274.
Psyche 7:274, 1894.
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PSYCHE.
[August 1895
NEW NORTH AMERICAN ODONATA. - 11.
BY ALBERT P. MORSE, WELLESLEY, MASS.
Nehalennia gracilis sp. nov.
.-
Very similar to ff. s'rene but. even slenderer and differing in structure and markings. Post-ocular spots present in the shape of a continuation of the occipital line half-way to each eye. 8 : segments 9 and 10 all blue ; 8 blue except a very 11iwow transverse basd bud. Superior appendages one-third (M hen well extruded) as long as the side of 10, in side view about two-thirds as broad as long, directed backwitrd, upper margin convex, lower margin slightly concave, apex rounded ; in dorsal view about twice as broad as long, tl1.e inner ttiargius nearly contiguous, the dis- tal margin parallel with the excised margin of to but a littte concave, the lateral and inner margin& eqml, sliglill~ convex, directed ca~icli~d, the outer apic;il single well roniuled, the inner less so. Inferior appendages very short, t,lie upper outer angle produced candad into a stout apical tooth which projects ncarly as far as the superior appendages ; in dorhnl view these teeth are seen at the sides of the latter, directed ontwiird iind back- w;ird, their inner mill-gins concave, outer margins convex. ? : simihir to h'cne but the hind inargiii of (.he prothorak is excavate nmlially making it bilohed (instead of lri- lobed as in that species) ; the markings differ ill that a large triiutg~il;u- apical spot on 9 and sill of 10 are blue. In three examples the spot on 9 is produced to base sine! the dorsiini of 8 also is nearly or entirely blue medially, widest behind.
Abd. : f, 30-22 ; 9, 20-22.
Ilinrl wing:
& 13-14.5 i $ 1 14-1.5-
2 pairs, 13 8, 11 $, Junc 24, Sherborn,
Mass.; 6 f, 2 $,June TO; I $',June 27;
I 8, July 19, Wellesley, Mass.
Taken near stagnant pools in peal-bogs in company with if-etie, with which species it hiis hitherto been confused, as shown by the series in the Hagcn collcctiun.
Post-ocular spots of moderate size.
Mid-
dorsal thoracic and humeral dark stripes of medium width. Abdomen blue with the clor- sum blwk as follows: apical half of 2, fourth of 3, third of 4, lialf of 5, three-foiirths of 6, all of 7 except mi interrupted basd ring, u stripe each side on 8, and all of 10. Dor- sum of 10 einarginate. Superior appendages short, one-fonrlli to one-iliird as long ~LS side of 10, in side view nearly as broad as long, directed caudad or slightly deflexed, sides parallel, apex blunt, ettiarginate ; in dorsal view as broad ss, long, widened apiciilly, emarginnte at end, apex of both limbs chow- ing equally, smoothly the upper
prescn ting :L little tooth on inner imirgin, , Seen from the left dorso-lateral aspect the right (and vice versa) appendage is ~een to be deeply roiinded-eniarg'inate, or slightly bifurcate, the lower limb usually slightly larger and longer. Inferior appendages
nearly twice as long as the superior, stout at base but iniieli narrowed dorsally, directed backward and a little upward, sides straight, tapering smoothly to the slightly upturned aiiJ incurved tip.
Abci. : J, 26.5-22. Hind wing-: 8, I;-16. 14 8 ,May25; g (T ,JimeS, Wellesley, Mass. Enallagrna pictum sp. nov.
Allied to .:iptrilum.
Coloration black and
yellow.
Post-ocular spots reduced to $1 con-
tiniiiition of the occipital line. A pair of very small pale spots between the :interior ocellus and the posterior two. Dorsurn of thorax chiefly black, humeral pale stripes narrow, 8, or very narrow, 9. J' : abdo- men black as follows : dorsum of 1-10, on 1 in form of an orbicular apical spot narrowly connected to base, on 3 terminating in a sharp point basally. I with wide apical, and 4-7 with narrow interrupted basal ring, jel-
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August 18g5.j PS TCh'B . 2 75
low. Superior appendages two and ii hxlf times as long as wide, nearly as long as 10, directed backward, equal or slightly enkirged apically, dorsal mai'giii one-fifth longer, blightly concave, apex obliquely truncate, angles rounded, distal margin concave or sliiillowly emarginate. In dorsal view
stoukr at base, only twice as long as wide, the upper limb tapering to a rounded tip which bears s\ short, stout tooth on the inner side next the rounded apex; the lower limb projects inward making the two sides of the whole appendage nearly parallel, the inner apical margin truncate. The inferiorappen- dages are three-fifths as long as the superior, stout, tapering to a blunt point, directed candad, a little lncurved. 9 : humeral pale stripe one-lliii-d as wide as the d:~-i-k stripe, a line on second lateral siitui-e, and a short line between it and the humcml stripe.
Doi'snn~ of 1-10 greenish black, not narrowed, inure or less inac~ilale on 10: 3-6 with inter- rupted had ring, 7 and 8 witli apicnl margin yellow.
Abd. : 8, 25; 2, 26.5. Hind wing: J,
16.5; $2, 18.5.
I 8, I 2, Sherhorn, Mass., collected by
Mr. A. L. Babcock, to whom I am indebted for an opportunity to examine and describe them and who 1121s donated the types to the llagen collection at Cambridge, Mass., in conjunction with the other types described by me from, my own collection in this and the preceding" papers.
NOTES ON MOTHS
Avzjfiion nessus.- Last year I found young larvae of Ain-pkion nessus on Amfelo'psis neitcJiii, and this year I have found thmn on Aiz$elo$sis (iiti'nquefdia, one specimen be- ing of a clear wine-color, with subdorsal and oblique lines pink edged above 'with deep claret-color. The granulation was pale yel- low, as were the face lines and the edge of the anal plate. The larvae drop from the vine at a very slight
shake and arc easily
found in this way.
" Red-fringed " Actias luua.- In early June Miss Norton sent me eggs of the A. luna
having deep red fringes on its wings. These eggs liatched twelve days after they were laid, and the larvae differed from any I had seen in Iiaving a dark brown lateral band from head to inicil shield; a dark brown, patch on the dorsum of the third and of the pre-anal segments, with the anal plate blackish-
brown. The bristles from the tubercles
were bhiek with some while ones. The feet were green with n brown patch on each. At the first moult they came out like normal Luna larvae.
A;å´/acz;s $romefkea.- Is this moth rare this year? I have placed on my window-sill nine females, but in no case has a male been attracted. Last year every female which
e~nersed in my box attracted from five to forty males, and some of the females were not even near the open window.
Caroline G. Soule.
Brookline, Mass., June 30, 1895.
PROCEEDINGS OF THE CLUB.
8 March, 1895. The 186th meeting was
held at 156 Braille St., Mr. S. Henshaw
in the chair. Mr. A. G. Mayer was chosen secretary.
Mr. W. L. W. Field was elected a member. Mr. S. H. Scudder read the delayed address of the retiring President, Mr. T. E. Bean, entitled "A comparison of Colias!iecla with Colitis meudii m-id Colias elis."
Mr. S, Henshaw asked what the distrihn-
tion of C. //#cia w;is. Mr. Scudder stated that it was quoted from Greenland, Lapland, Hudson Buy, Bering Straits and Grinnell- land and C. meadii froni Colorado, Arizona, and New Mexico.
A paper by Mr. W. S. Blatchley on winter collecting (see Psyche, vii, 247) was resid. Mr. Kenshaw stated that he had found be- tween 2-300 species of Coleoptera and a few larvae by sifting leaves during the winter months; the greater number of species thus found were Pselaphidae and Stapliylinidae. Mr.. Hensha.~ exhibited a specimen of
Lycacuu aerces from San Francisco. This
species was erroneously supposed to have been exterminated by the extirpation of its food plant.
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