Article beginning on page 39.
Psyche 12:39-42, 1905.

Full text (searchable PDF)
Durable link: http://psyche.entclub.org/12/12-039.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.

Evidence
he entered
in were in
being then
in with the
orable cir-
: is not the
i the mode
ife, and all
orm of the
utties have
we actually
nay well b
lark's mind
wked upon
ie spectacle
in biology,
cnse length
c evolution
an from the
e beginning
laws of the
I the revival
I about 1866
ere Herbert
of Agassiz's,
uch by their
h they were
W51
LO VELi AND COCKBRELL-BEES OF MAINE
39
THE NOMADINE AND EPEOLINE BEES OF SOUTHERN MAINE In southern Maine (Waldoboro, Lincoln County) the Nomadine and Epeoline bees are represented by only two genera Nwitada and Trmpeolits. The species are few and individual specimens are taken at rare intervals. The species of No- mads begin flying as early as-^priI qth, visiting the aments of Salix discolor, which with the exception of the Mayflower is the first nectariferous plant bloom- ing in this locality; and continue on the wing as late as July joth,* when they have been taken on the infloresence of Art~Zia hispida. All of the specimens of Triepeolus have been collected in August on the flowers of the Compositue. Nomada.
The species of Nomads run into local races and species in different Darts of the country, and the Maine species possess certain peculiarities of their own. Two
are distinct enough to be treated as new species, though it is not impossible that the discovery of intermediates in localities still unexplored for bees may eventually cause them to be reduced to subspecific rank. Two others, here called varieties, may prove more separable than is here supposed, when larger series have been obtained.
Nomada {Gnathias 1 bda Cr.
1863 Mwiuda brUa Cr. 9 8 Prm- Ent. Soc. PhiL 2 : 287. 1863 Worn& mucutata Cr. 9 a, Froc. Ent. Soc. Phila. 2:303 (in part). I- N&a hlla Roh. 9 8 , Em. Sews, 13 : 80, no. 3. 1903 Nomasfa htta Ckll.9 8, Proc. Ac. Nat. Sci. p. 601. Variety a of .X maculate 9 WAS based on five specimens from Maine, Conn., Penn., and Delaware.
The local specimens correspond in every particular to the description except that the spots on the fifth segment are obsolete as well as those on the fourth. The characters of the males are also similar to those given by Cres- son. Length 10 to I I mm.; mandibles bidentate; the largest species in this 10- cality.
Taken from April 24th to July i ith.
Early in the season they are visitors
to the willows Safix disco/or and S. ffcbhiattu. Male and female specimens of N,
AfZAr from Elkhart, Indiana, are the same as the local species except that the cream-colored spots on the apical segments are usually well developed.



================================================================================

Nomads (Gnathias) cuniafa Rob. var. e.
1903 Gnsttias waratus Rob. 9 3 , Can. Ent. 35: 175, no. 6. Q. - Length Smm.; mandibles bidentate ; resembles N. M a but is smaller, with thorax trilineate.
Head and thorax red, not coarsely punctured; white pubescence on cheeks and pleura long; a black dot on each side of clypeus, the area about the insertion of antennae and ocetli black, a red spot on supra- clypem; occiput black; antennae ferru&ous, fourth joint longer than third. Mesothorax trilineate, the middle band broad; scutellum and post-scuteHum red, sutures black; pleura black above with a red spot, red below; metathorax with broad black bands at the sides and in the center; tegulae and tubercles ferrug- itioua.
Legs red; upper third of anterior and middle femora black beneath; post- erior femora blackened behind. Wings dusky, apical margin darker; pale- .
lude distinct; basal nervure basad transverse medial nervure more than the length of the latter; third transverse cubital nervure strongly angulated in the middle. Abdomen red, broad, strongly convex; black area on basal segment lobed in the center; a pair of smdl cream colored spots on ths side:} of second segment; apical segments without markings. Waldoboro, Maine, May 18.
Nomada (Xanthidium) subrutila n. sp.
l
.- Basal nervure meeting transverse medial; flagellum obscurely den- ticulate, lively ferruginotis beneath; supraclypeal mark well developed, surround- l
ed by black; orbits yellow except at summit behind; third antenna1 joint on the short side much shorter than fourth; scuteltum black with two small.yellow spots; metathorax entirely black; tegulae light yellow, with a hyaline center and mar- i '
gin; bani on first abdaminal segment broiAly interrupted, the posterior part of the interval reddish; bands on second and third segmints not at all interrupted; anterior and mid.11; tibias yellow, with a black or dark brown mark behind. Other characters as in LV llufcolu and N. luteoloiiks; size that of a rather small luteoza.
One male taken on Via^ rofrm:Iifoliit May 4th. The species recognized
in this group are very closely allied, but the present one seems as distinct as any. Nomads, Cressonii Rob.
1863 N o d nucttljt.~ Cr. 9, var. b, Proc. En:. Soc. Phil. 2:304. 1&93 Kom& Cmwait Rob. 9 8 Trans.Am. Ent. Sot. zo:=75. This species has been taken on yiburnt~m. A/ftifo/ium and Curnus dzna- dens& from May 19th to July I i th-




================================================================================

[April
rlla but is
of dypeus,
on supra-
hail third.
tellurn red,
lorax with
:les f exrug-
ieath; post-
rker; pale-
å´ than the
ited in the
A segment
of second
curely den-
I, surround-
aint on the
illow spots;
,r and mar-
rior part of
ntermpted;
rk behind.
ather small
recognized
hct as any.
. j
I
19051
LO VSLi AfvD COCKERELL-Bå£& OF MAlNE
Nomada f lorilega n. sp.
<?.-Length about 8
cheeks and pleura clothed
fringed with long white hair.
labrui~~, clypeus, usually a narrow line along the orbits, and vertex red; face, region of ocelli, cheeks and occiput black; ffagellum ferruginous in front, black- ened behind, third joint shorter than fourth. Tegulae and tubercles ferrugin. ow; mesothorax dark red tinged with black, with a rather broad median longitud- inal Une; sutures black; metathorax entirely black, pleura black above with a mid- die red spot, red below. Legs red, coxae largely black; upper half of anterior and middle femora black beneath; posterior femora blackened behind except at extreme apex; first and second joints of hind tarsi blackened without. Wings dusky, strongly darkened on apical margins; stigma ferruginous, outer half dark- er than the inner; basal nervure basad transverse medial; second submarginal cell ahout one half as wide on the radius as on the cubitus; second and third transverse cubital nervures strongly curved; lunute rather prominent. Abdomen oval or oblong oval, convex; basal half of first segment black, posterior margin of black area cordate; a pair of small cream-colored spots on the sides of seg- menttwo; on segment three two minute dots; apical segments without ornaments. Taken on Arab Aisjiifa and Spiraea .w/.w/'o/ia during the latter half of July. Nearest N. say4 but larger and darker, the metathorax being entirely black, and the red of the coarsely sculptured mesothorax very dark. .
Nomada nipcinfta Smith, var. d.
(879 Homada ftt&f~å£l+nci Sm. 9 Dea. New Sp. Hym. p.~. 9 .-Length Smm.; ferruginous and black.
Head and thorax rather finely
punctured; pubescence on cheeks, pleura and sides of metathorax white, on face and disc of mesothorax fuscous.
Mandibles except tips, labrum, clypeus, spot on supra-clypeus, a narrow stripe around the eye, and antenna ferruginous; area about insertion of antennae, about ocelli and occiput black. Prothorax black; mesothorax trilineate, the middle band rather broad; scutellum largely red, post- scutellum black; metathorax entirely black; pleura black, red spot beneath the wings, another anteriorly on each side of the forelegs; tegulae and tubercles fer- ruginous. Legs ferruginous,marked with black much as in the preceding species, Wings nearly hyaiine, slightly dusky at apex; basal nervure very little basad of transverse medial, much less than in the preceding species; second submargin- al cell along the radius nearly as tong as second transverse cubital nervure; third submarginal along the radius fully one half as long as second submarginal



================================================================================

ous or blackened; posterior nr~rgi
straight^ pygidial plate broad and rounded. Collected Miy 13th.
Distinguished by its cotor from any other of the local species. This msy represent a distinct race, but the single spscim5n ob- tained has the essential characters of smith's species, and is really more typical of it than the insect from Corvallis, Oregon, which has been referred here. Triepolus.
Tå´ne/du donatus Smith.
8854 Efwohis dw~tus Sm. 9 8 ,Cat. Hym- Brit. Mus. 2:256. 1864 Epmbts hutus Cr. 9 S, Froc Ent. Soc. Phil. 3:396. 1882 Epmhs &atus Fmv. Q ,Nat. Can. 13:336. a883 ,Fpmtus doitaftis Prov. 9 , Faun. ent. Csut. Hym. p. 719. Though rather rare this species is more common in this locality than any ot~f~hiagenusorofiVo~rfif~. BothsexeshavebeentakenfromAugust~~th to August 24th on the goldenrods, thistles, Initlit Hslenlum and E~tpateirimm perfo/e<ttum.
Trtffialus scufeltaris Say.
1824 &~ius witdlaris Say, 9 , Long's 2nd Exp. 2:35;. 1859 Epdm setttdl&s Say, 9, Lee. ed, Say's Writ. 2:=40. 1864 EpJus scutellaris Cr. $ , Proc. Ent. Soc. Phil. 2:397. 1888 E f i d ~ scutdiaris Prov. 9 , Add. faun. Can. Hym. p. 332. r897 Ep&s mtslIaftS Rob. $ f , Trans. Ac. Sci. St. Louis, 7:343. Two males taken on So/it/trgu in August are referred to this species, which has been reported from Florida to Canada. They agree with the description
in size .and in the form of the dilated thoracic teeth, but not entirely in color. The mandibles, tubercles, teplae, lateral teeth, scutellum in one specimen, and legs are ferruginous; but the antennae and basal segments of the abdomen are black.
TriepeuZus f edodis Rob.
1897 Epwiut pectordis Rob. 9 Trans. Ac. Sci. St. Louis, 7~345. Both sexes taken on the flowers of Su/tthzyo August i 7th. The female has
the mesothorax closely and finely punctured, and the pleura below coarsely and q~mely punctured.
The male is undescribed.
S . -Length about Smm., clossiy resembles the female. The face clothed with silvery white, the pleura and pectus with cinereous pubescence. Orna-
ments of thorax and abdomen buff-colored, fascia of sixth segment white.



================================================================================