Article beginning on page 367.
Psyche 7:367-369, 1894.

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PSYCHE.
THE NEW ENGLAND MELANOPLI.
BY SAMUEL II. SCUDDER, CAMBRIDGE, MASS.
Some ye'trs ago (Proc. Bost. soc nat.
hist.. xix, 281-286, 1878) I published
a table for the iletcrmination of the
New England species of Melanoplus,
of which I enumerated six species,
Several errors are to be found in the
table, leading to much confusion, and I
therefore oflk here another, more in
harmony with a revision of all the
Melanopli of North America 1 shall
shortly publish with illustrations. At
the same time the other species of the
group Melanopli, embracing all our
New England Acrididae excepting
Schistocerca, are added. including some
species not then known to inhabit New
Ejiigland. Most ofthe additional species are due to the industrious rind discrim- inating collections of Mr. A. P. Morse,
in whose Preliniiiiary List of the Acri- Table of the Genera
a'. Pronoturn much deeper than broad ;
apical posti~xirginal tubercle .
didae of New England (Psyche, vii,
102-108) all the thirteen species here
enumerated will be found but sometimes
under different names, my revision
showing the necessity of several altera- tions. As the reasons for the changes
will appear in my forthcoming paper, I
will merely add here a list of the changes by refeience to Morse's List.
Mu rse's List. Present JLi.vt.
Heaperot. viridis.
Pezot. glacialis.
Pezot. scudderi.
Pezot. manca.
Melanopl. junius.
Pezot. borealis.
Melanopl. bivittatiis.
Paroxya atlantica.
Hesperot. brevipennis.
Podisma glacialis.
Melanopl. scuckleri,
Melanopl. nmncus.
Meliinopl. extremus.
Melanopl. fasciatus.
Mclanopl. t'etnoratus.
Pfiroxya floridana.
.The Melanoplus rectws of my former
table is M. fasciatus of the present.
subgenital plate of f furnished with an
, HESPEROTETTIX (brevi$ennis).
a2. Pronoturn but little deeper than broad ; subgenital plate of f with no apical tubercle, or if preseni it involves the apical margin. W. Without trace of tegmina or wings . . PODISMA (gincia&). b2. With longer or shorter teginina and wings. c1. Face less declivent than in the alteinate category; dorsutn of pronotum only half" as long again as llie avenge breadth even in the f ; antennae, even in the if, shorter than the hind femora and not. more than twice as long ;is the pi-onotum alone . MELANOPLUS.




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PSYCHE. fApnl 1896.
c2. Face more declivcnt than in the alternate category; dorsum of pronotuin twice as long as the averagebreadth, at least in the 3 ; antennae, at least in f , generally longer than the hind femora, and much more than twice as long as head and pronotum together . . PAROXYA (JZoridana). Table of the N. E. Species of MeZanopizts: .Wales. a . Tegmina no longer or scarcely longer than the pronotum. b1. Interspace between mesosternal lobes fully twice as long as broad : median carina ;is distinct on the prozona as on the metazoua ; cerci stout, less than three times as Iongas middle breadth . sczidderi. b2. Interspace between mesosternal lobes smnewhat longer than broad ; median cariua less distinct on the prozona than on the metazona ; cerci slender, at least four times as long as middle breadth . maneus. 2. Tegmina much longer than the pronotun?, generally surpassing the abdomen. 17'. Furcula very much longer than the last dorsal segment from which if spring's, usually a third as long as the supraanal plate. c1. Subgenital plate with the apical margin notched . 'itlanis. c2. Suhgenital plate with the apical margin entire. dl.
Distal half of cerci less than half as broad as the extreme base ; intcr- space between mesosternal lobes twice as long as broad femur-vzbrzm
c12. Distal halt' of cerci more than half as broad as the extreme base; inter- spacc between mesosternal lobes not much longer than broad extremes. h2. Furcula feebly developed, generally shorter, at must scarcely longer, than the last dorsal segment from which it springs. c1. Cerci of nearly equal width and simple throughout . . faxiatus. c Cerci of very unequal width or irregular shzipe. dl. Cerci apically furc~te with unequal forks, the lower the smaller and sometimes reduced to little more than an angulation; apical margin of
subgenital plate with no median tubercle. el. Furcula distinct, consisting of a pair of spines as long as or slightly longer than the last dorsal segment ; lower fork of cerci subolisolete ; base of lateral margin of subgenital plate incurvcd . . 7lil.'i'~07-. e2. Furcnla obsolete ; lower fork ot cerci slender, but half as long as upper fork ; base of lateral margin ofsubgenital plate not incurved collinus. d2. Cerci apically expanded and lobate ; apical margin of subgenital plate with a median tubercle.
el. Interspace between incsosternal lobes nearly twice as long as broad ; prosternal spine long ; cerci boot-shaped . . femoratiis. c2. Interspace between inesosternal lobes subquadrate ; prosternal spine short; cerci terminating in a transversely oval tumid lobe j5imctziZatns.



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April 1361
Table of the N. B. Species of MeLano#lus: Females. a1. Tegmina no longcr or scarcely longer than the pronotnm. .
b1. Interspace between mesosternal lobes quadrate or slightly longer than broad ; median carina as distinct on the prozona as on the metazona; basal tooth of lower valves of ovipositor blunt and rounded . . scudderi. b2. Interspacc between mesosternal lobes distinctly transverse; median carina less distinct on the prozona than on the metazona ; basal tooth of lower valves of ovipositor sharp, rectangular . . mancus. a'. Tegrnina much longer than the pronolurn, often surpassing the abdomen. bl. Lower valves of ovipositor al)icallj more 01- less distinctly decurved, with a distinct median tooth on the lower outer margin ; prosternal spine moderate or long, generally about as high as the ~nesosternu~n. c\Interspace between mesosternal lobes longitudinal or quadrate. cll. Rather large; prozona distinctly longitudinal ; line of division between the dorsal and lateral areas of the closed teginina marked by a yellow stripe generally extending forward to mark the lateral carinae of the pronotum. fernoratus.
(P. Medium sized; prozoiiii quadrate or transverse; no yellow stripe on tegmina or lateral carinae.
el. Median carina of pronotum generally indistinct or wholly wanting on the proxooa ; prosLernal spine as seen from in front tapering, gener- ally bluntly pointed at tip . . . atlank e"2 Median carina of pronotutn generally distinct on the prozomi; pro- sternal spine nearly cylindrical, as seen from the front scarcely tapering except at extreme tip, whicli is generally bluntly rounded, sometimes a little enlarged . . femur-rubru?~.
c2. Interspace between tnesosterniil lobes distinctly, sometimes strongly transverse.
dl. Interspace between tnesosternal lobes strongly transverse ; tegmina generally shorter than the abdomen ; median carina almost as distinct on the prozona as on the meta'/- on:^; interval between eyes above narrower than in the alternate category.
el. Hind femora with no transverse
bands; metazona obscurely and
bluntly rugnloso-punctate . . extrcmus.
c2. Hind femora with dark oblique fasciation; metaxona distinctly and sharply r~~guloso-punctate . . fasciatus. d'. Interspace between mesosternal lobes but little transverse; teginina always as long as the abdomen ; median carina distinctly dulled on the pro- zoua ; interval between eyes above broader than in the alternate category.



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370 PSYCHE. [April 1896.
el. =~ther slender bodied ; outer edge of upper valves of ovipositol-with a single or no denticulation at the base of the scoop ; hind tibiae norn~ally gla~~cons but sometimes red . minor.
e2. Rather stout bodied ; outer edge of upper valves of ovipositor crenu- lato-clenticulate on the basdl half of the scoop ; hind tibiae coral red. collinus.
b2. Lower valves of ovipositor straight, with feeblest signs of a median tooth ; interspace between mesosternal lobes strongly transverse ; prosternal spine short, not nearly reaching the level of the mesosternvim . /ztå´nc/ulatus Two of our species, M. extremus M. extremus, and seem to be confined and X fasciatus, arc distinctly and
almost or quite exclusively to very high strikingly dimorphic, occasionally oc- elevations. The long-winged form of curring with teg~nina surpassing the M. fasciatus has been seen by me hind femora. These long-winged forms only from Michigan, but should be are known in New England only in looked for in northern New England. ON CO1.EOPTERA FOUND WITH ANTS. THIRD PAPER. BY H. 12. WICKHAM. IOWA CITY, IOWA.
To the earlier contributions of mine
on this subject, published in some of
the preceding numbers of Psyche, 1
wish to add the following observations,
made at Iowa City during the years
1894 and 1895. A numbei'oftlie records
are new, both us regards host and local- ity, while u. few are inserted simply as information touching upon dates or as
furnishing additional proof regarding
the true status of certain species. I
have adopted the plan of taking up
each species of ant separately and enum- erating its guests; as in this way it
would seem easier for the reader to form an idea of what is likely to be found in a given nest. For identification of all
the hosts I :tin under obligations to Mr. 7 .
lheo. Pergande, wliilc most of the
Psclaphidae and Staphylinidae were
named by Captain Casey, who, as we
all know, has for years made careful
studies among them. Several unde-
scribed Aleocharini and some Scyd-
naenidae are also in my collections
from ants' nests, but these are not in-
cluded in the present paper.
I. Formica subsericea Say. A
strong colony of this species, having its nest in a little rocky mound, was ex-
aininecl on April 14 and the following
beetles obtained : Ptomaphagus para-
situs Lee., eight specimens, chiefly at
a distance of several inches from the
surface. They are lively little fellows
and run about actively in their efforts




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