Article beginning on page 553.
Psyche 6:553-555, 1891.
Full text (searchable PDF)
Durable link: http://psyche.entclub.org/6/6-553.html
The following unprocessed text is extracted from the PDF file, and is likely to be both incomplete and full of errors. Please consult the PDF file for the complete article.
November I&$]
DESCRIPTIONS OF NEW ACULEATE HYMENOPTERA. BY WM. J. FOX, PHILADELPHIA.
PISONOPSIS gen. nov.
Form stout, sculpture coarse; head as
broad as or slightly bsoader than the thorax, in the J' it is distinctly broader; mandibles distinctly notched on outer margin; eyes reaching to the base of mandibles, their inner margins converging a little towards the vertex and rather strongly emarginate at about the middle, in the f they are but
slightly emarginate; ocelli round, regular and distinct placed in a triangle; antennae ample, placed immediately behind the
clypeus; shoulder tubercles not reaching to tegulae; metathorax a little shorter than the dorsulum; marginal cell long, but not
reaching beyond the tip of third submar- ginal, obtuse at tip, without appendicula- tion; three submarginal cells, fhe first more than two times longer than the other two combined, the second petiolated, generally though not always, receiving both recurrent nervures, third submarginal narrow, wider below than at the top; discoidal vein con- fluent with the interno-medial vein; stigma short, truncate at tip ; legs very feebly armed, the anterior tarsi without comb, middle
tibiae with a single strong spur at apex, tarsal claws entire; last dorsal segment of the $ with a distinct fygidial area, in the f the last ventral segment roundly emar- ginate at apex.
From Pisoit it is distinguished by the
emarginate mandibles, the last dorsal
segment of $ with a pygidial area, its more robust form and its coarse sculpture. From the other Larrid genera that have the eyes emarginate, i. e. Adacophilus and Trypox- ylos, the form of the abdomen will nt once separate it.
Pisonofsis clypcata. $ .-Clypeus convex
medially, with large, scattered punctures, produced anteriorly into a strong medial tooth, at the base of the tooth the clypeus is transversely impressed; front with close, rather coarse punctures, with a distinct, medial, impressed line; ocelli slightly pitted, forming an equilateral triangle ; top of head and cheeks shining, more finely punctured than the front; first joint of flagellum a little shorter than the second which is longer
than the third, dorsulum with distinct
punctures, those on the anterior portion finest and closest; scutellum punctured like hind portion of doi-sulum; metathorax on sides and posteriorly with coarse striations, the upper surface with a somewhat triangu- lar enclosure, which is on basal portion obliquely ridged, on apical portion trans- versely ridged;
legs strong, the tibiae and
tarsi with a very few weak spines; wings subhyaline, iridescent, the apical margins darker, recurrent nervures generally received by the second submarginal cell; in one
specimen the first recurrent nervure is con- fluent with the first transverse-cubital nervure; abdomen finely, though distinctly punctured, the second and third dorsal seg- ments rather strongly transversely depressed basally; pj-gidial area triangular, finely and closely punctured ; black, the abdomen rufous; sides of face, clypeus, sides of thorax more or less and the apical margins of
abdominal segments 1-5, silvery. Length
g mm.
8.- Eyes scarcely emarginate within and
converging but little towards the vertex; ocelli situated in a low triangle, the distance between the hind pair more than twice
greater than the distance between them and
================================================================================
PSYCHE.
[November 1893.
the nearest eye-margin ; antennae shorter than in the $, joints 1-6 of the flagellum produced into a strong angle or tooth
beneath, joints 1-4 much narrowed basally ; from joint six the flagellum gradually tapers to the apex; apical portion of abdomen
blackish; last ventral segment of abdomen roundly emarginate at apex. Length 7 mm. Nevada (Morrison). Four specimens.
PLENOCULUS gen. nov.
Eyes within not emarginate, distinctly con- verging towards the clypeus ; the ocelli round and prominent; antennae short and stout, originating immediately behind the clypeus ; head transverse, wider than the thorax ; outer edge of mandibles strongly emarginate ; palpi rather prominent, the maxillary palpi 6- jointed, the labial palpi 4-jointed; in the $ the clypeus has on each extreme side a fringe of hairs as in Cerceris; pronotum lower than the level of the dorsulum; metathorax dis- tinctly shorter than the dorsulum ; legs stout, the femora narrower at apex than at the
base; four hind tibiae and tarsi strongly armed with spines, those on the anterior tarsi forming a weak comb; tibia1 spurs
large and strong, the hind tibiae two-spurred, the others with but one spur; tarsal claws long and slender, not toothed, in the $
much smaller; marginal cell at apex obliquely truncate, with a distinct appendiculation ; three submarginals, of which the first is nearly twice as long as the other two com- bined, the second petiolate, the third is oblique and is slightly narrowed above, the first recurrent nervure received by the first submarginal cell near its apex, the second by the second submarginal cell between its
middle and apex, the discoidal and basal nervure meet at a short distance from the apex of the submedian cell, this cell being therefore shorter than the median cell on the externo-medial nervure; stigma small, scarcely distinguishable from the costal nervure; abdomen shaped as in Oxybelus;
last dorsal segment $ with a distinct
pygidial area.
This genus seems to be most closely re-
lated to Tcichyrhostzi-s Saussure from Aus- tralia; it is, however, different in the fact that it is not at all metallic in color, the head being broader than the thorax, the wide
emargination of the mandibles, the narrow vertex. From Bothynostethits it is distinct by the eyes converging towards the vertex, the marginal cell with an appendiculation, and the hind femora being not broadened at the apex, etc.
It may be that this is the genus described by Patton, from New York,* but his description, 'Second submarginal cell petiolate," is of no value as some half a dozen genera of the Larridae possess that character. Pleno-
cdus is albo distinguished from Sylaon and Solierella in possessing a pygidial area and by the legs being strongly armed.
Plenoculiis davisi. 9. - Anterior margin of clypeus deeply incised, armed with
five teeth on each side, the outer and inner tooth is generally the largest, the others being in some specimens indistinct; front very finely granulated, with a long, distinct, medial impressed line, which originates in a strong fovea, before the anterior ocellus and extends down between the base of the
antennae; ocelli forming a triangle; on each side of anterior portion of vertex there is a curved furrow, running from each hind
ocellus to the inner eye-margin ; first joint of flagellum possibly a little shorter than either the hecond or third, which are a little longer than any of the following joints, except the last; dorsulum and scutellum with very fine, close punctures, both strongly convex; suture between dorsulum and scutellum strong ;
metathorax above very finely granulated, rather strongly furrowed clown the middle, the extreme base generally with a transverse series of small fossae, sides and posterior face very finely striated; abdomen finely and closely punctured, the pygidial area triangu- lar, with large, sparse punctures, its lateral ridges not well defined; black; clypeus, * Entomological news, iii, p. go.
================================================================================
November 1893.1 ~ ~ ~ c ~ ~ . 555
except apex, tegulae, four anterior tibiae on outer side, the hind tibiae on outer side except apical portion, yellowish ; tarsi and apical margins of the abdominal segments testaceous ; wings hyaline, iridescent; ner- vures testaceous ; apical abdominal segment more or less rufous ; head, thorax and abdo- men more or less covered with
silvery pile,
which is most dense on the face, clypeus, mesopleurae and metathorax. Length 5-6
mm.
VAR. legs, except anterior tibiae, entirely black.
3. Anterior margin of clypeus slightly
produced medially; antennae shorter than in the 9 and sub-clavate ; clypeus entirely, scape beneath, tegulae, tubercles, apex of femora, the tibiae, except inner side of two anterior pair, and the tarsi, bright yellow. Length 44-5 mm.
Agricultural College, Michigan (June and July). Collected by Mr. Gager C. Davis, to whom it is dedicated; Montana (Morrison). Coll. Amer. Entom. Society.
NiteZio$sis å´plenoculoides
2 . - Clypeus
strongly carinated down the middle; front finely granulated, distinctly impressed down the middle, along the inner eye margins the front is finely punctured ; eyes strongly con- verging to the top, the space between them at the vertex is about equal to one-half of the space at the clypeus; ocelli in a triangle, the lower one situated a little further away from the hind pair, than the latter are from
each other; from each hind ocellus there ex- tends down a short furrow, which reaches a little beyond the fore ocell~is; antennae tol- erably long, reaching to about the tegulae, the flagellum tapering on apical half; joints 2 and 3 of the flagellum longest, the first and fourth about equal; dorsulum with exceed- ingly close and fine punctures; metathorax above and on the sides finely granulated, with indistinct striations when viewed in certain positions ; at the extreme base of upper surface there is a transverse series of small fovea and down the middle there is an im- pressed line (this is not distinct in one spec- imen), the posterior face transversely rugose ; tibiae and tarsi, with exception of the calcaria unarmed ; tarsal claws rather short, stout and not toothed ; abdomen elongate-ovate, the first three dorsal segments when viewed from the side are seen to be contracted basally and apically; last dorsal segment without a
pygidium ; three submarginal cells, the sec- ond petiolated, receiving both recurrent ner- vures; black; two transverse spots on the collar above, posterior half of tubercles, a spot near the middle of hind tibiae and the tibia1 spurs, whitibh; apex of mandibles, tegulae and tarsi, testaceous ; wings s~ibliya- line ; nervures black ; face and clypeus, bides of thorax and abdomen, more or less, with silvery pile. Length, 6 mm.
New York ; Colorado.
In general appear-
ance this species resembles Plenoculus davisii but the abdomen is
differently shaped, the
antennae are longer, the legs without spines, the second submarginal
cell receiving both
recurrent nervures and the last dorsal seg- ment lacks a pygidial area.
It seems to me
that Kohl has erred in uniting Niteliopsis Saund., with Solierella Spin.* A compar- ison of the figures of these genera,+ is, I think, evidence enough that they are not the same ; while the species herein described agrees with the description and tolerably well with figure of Niteliopsis it does not agree with Kohl's description, nor Spinola's figure of Solierella. As riothing'definite can be ascertained to show whether these genera are synonomoub or not without an
examination of Saunders's type, it seems best for the present to consider them distinct. But one other species of Niteliopsis is known and is from the Ionian Islands. The single species of Solierella inhabits Chili.
* Verb. zoo1.-bot. gesellsch. Wien. xxxiv, p. 207, I 884.
+ Solierella Spin.
Gay's Hist. Chile. 2001. tab. ii,
figs. 5 a, b, c? Niteliojsis Saund. Trans. ent. SOC. Lond., 1873, p, 410.
================================================================================
556 PSYCHE. [November 1893.
Cerceris austri?za. 9 .- Clypeus sub-
convex, not produced, its fore margins
rounded or subtruncate, strongly punctured, its lateral lobes small and indistinct; front, vertex and cheeks with coarse punctures, those on the cheeks strongest; inner eye- margins slightly converging towards the
clypeus; ocelli placed in a low triangle; antennae tolerably long, thickened but little to the apex, first joint of the flagellum about one-quarter longer than the second, joints 2-4 about equal in length; thorax very
coarsely punctured, the punctures on the mesopleurae irregular ; sides of prothorax somewhat excavated or depressed ; mesoplen- rae armed with two strong teeth beneath; enclosure on metanotum triangular, parted by a strong furrow which runs the entire length of the metathorax, and with a number of both oblique and transverse ridges ; tibiae and tarsi strongly spinose, the hind tibiae very distinctly serrated on outer edge ; the spines on fore tarsi forming the comb rather short and widely separated; dorsally the abdomen is less strongly punctured than the
thorax,
segments 1-5 reflexed at apex; ventrally the base and apex of segments 2-5 are im-
punctate; pygidial area almost exactly ovate, having the appearance of being scaly ; black ; clypeus, sides of face, scape beneath, basal half of mandibles, four anterior tibiae and tarsi in part a transverse mark on pronotum, separated in the middle, and scutellum
yellow ; greater part of antennae, pronotum, tegulae, legs, postscutell~~m, first abdominal segment above, second and third segments, except basal portions, rufous, apical portion of second dorsal segment, yellow; face and clypeus clothed with pale silvery pubescence ; head, thorax, and abdom-en ventrally, with pale fuscous hair; wings fuscous, nervures testaceous. Length na mm.
8.- Middle lobe of clypeus
somewhat
pyriform, its anterior margin seemingly
tridentate, in consequence of its middle por- tion being angularly produced ; head coarsely punctured, the punctures on front, vertex and cheeks deepest; antennae longer than in the 9, second joint of flagellum a little longer than either the third or fourth;
mesopleurae not dentate; wings subfuscous darker towards apex ; pygidial area coarsely punctured; eighth ventral plate bifurcate; colored like the female, except that the face and clypeus is entirely yellow, and dorsal abdominal segments 2-5 have generally a
narrow, yellow fascia at apex, the first and second segments are both above and beneath generally rufous; in some specimens the
second segment has no trace of rufous, while in others the first three segments are more or less marked with that color, apical half of antennae black. Length 10-12 mtn.
So. Florida (Chas. Robertson). I 9 and 15 $ specimens.
Allied to vern/call's Smith, but
differs in the less coarse sculpture, the roughly and many ridged enclosure on
metanotum (in verticalis it is smooth) and the somewhat stouter antennae. It resembles verticalis very much, but the want of the ruf- ous color on vertex and metathorax will gener- ally distinguish it. It is larger than rzifoficta more coarsely sculptured and the flagellum is not so much thickened on apical portion. A CORRECTION.- In Psyche 1893 (v. 6, p.
379) I described larvae received from Mr. J* B. Lembert as A d a blakei Grote. Since
then Mr. Lembert has sent a second specimen, like the one from which the eggs were ob- tained except that the veins of fore wings are narrowly lined with flesh color. This leads me to believe that the larvae described were really those of A. omata Pack. and the varietal name proposed by me will not stand. The synonymy will be :-
EYPREPIA (CALLARCTIA) ORNATA Pack.
si~n$Zicior Butl.
'peqbicta Dyar.
VU. ACHAIA G. & R.
edwardsii Stretch.
var. COMPLICATA Walk.
\dahiirica Grote.
ochracea Stretch.
bar& Hy. Edw.
Harrison G. Dyar.
================================================================================
Volume 6 table of contents