Cambridge Entomological Club, 1874
PSYCHE

A Journal of Entomology

founded in 1874 by the Cambridge Entomological Club
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This is the CEC archive of Psyche through 2000. Psyche is now published by Hindawi Publishing.

J. H. Emerton.
New Spiders from Southern New England.
Psyche 31(3-4):140-145, 1924.

This article at Hindawi Publishing: https://doi.org/10.1155/1924/70654
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140 Psyche [~une-~u~ust
NEW SPIDERS FROM SOUTHERN NEW ENGLAND.
The following species of spiders have been found in the last few years in southern Massachusetts, Rhode Island and Connec- ticut. The Grammonata was at first considered a varietsy of G. pictilis, but has now been found in three different places, always with the same distinguishing characters. The Ceratinop- sis is one of several species confused under the name of C. nigriceps. The Euryopis has been known for a long time, but has awaited description in the hope of finding females that might be referred to the same species. The Theridion and the Lophocarenum are described reluctantly from single specimens after careful search for more in the same localities. Theridion terrestre n. sp.
3 mm. long, pale, with very distinct gray and black markings. The cephalothorax has a middle gray stripe as wide as tthe eyes in front, narrowing backward to t.he dorsal pit and widening again behind. The thoracic part is bordered by a narrow black line.
The femora and tarsi have three gray rings. The abdomen F!g. 1. Theridion tmesfre n. sp.
has a complicated black pattern composed of two rows of spots in the middle, partly connected with two lateral rows in the anterior half. Fig la. On the under side there is a middle



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19241 New Spiders from Southern New England 141 transverse marking composed of three gray spots, and there are indefinite gray marks along the sides.
Fig. 1, b. The legs are
long and slender, as usual in this genus, the fourth leg is 8 mm. long. The front legs, probably the longest, are broken off and lost.
One female only among weeds in an asparagus field. Hollis- ton, Mass. N. Banks.
Ceratinopsis tarsalis n. sp.
Male 1.5 mm. long. Cephalothorax orange brown, black between the eyes. Abdomen and feet pale. The female is black around the eyes like the male, but does not have a sharply Fig. 2.
Cevatinopsis tarsalis n. sp.
defined black spot like C. nigriceps. The epigynum is distinctly different from that of nigriceps and resembles some of the Lycosidce.
Fig. 2b.
The male palpus has the tibia larger and wider than in nigriceps. Fig. 2a.
The outer edge of the tarsus
is slightly thickened and there is a thicker ridge parallel with it. Fig. 2a.
Buttonwoods, near Providence, R. I., Mo~iponsett, Middle- boro, and Hyannis, Mass.
Grammonata capitata n. sp.
This resembles closely G. pictilis, and like it lives in trees. It is one-eighth smaller than pictilis and paler in color, the light spots of the abdomen running together so that in some specimens



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142 Ps ydae [June-August
the whole back is pale except a middle gray mark. Fig. 3%. In
the mdes the mphalothorax is slightly shorter and the hump on the head rises more abruptly behind.
Fig. 3b. The male palpi
and the epigynwn cannot be distinguished from those of pictilis. Fig. 3.
Gmwtmonata cafiilala n. sp.
Amston) Conn., Miss Bryant.
Chatham? Mass. and Hol-
liston? Mass.
At Chatham both this species and pictilis have been found? but in localities a mile apart. Euryopis spinigera Cambridge.
Biologia Centrali Americana) Arachnids? Vol. l? page 146? plate fig. 2.
Males only known) 1.5 to 2 mm. long yel1ow.brown with a darker thickened spot covering the back cf the abdomen except the posterior end. Fig. 4a. On the under side of the abdomen are two large thickened spots, one covering the anterior end as far back as the spiraclw and the other occupying the middle of the posterior half. Fig. 4b. Smaller thickened spots are scattered . along the sides. The upper side of the abdomen is covered with scattered stiff hairs. Fig. 4a. The legs are short and without any markings. The cephalothorax is as wide as long and nar- rowed toward the head. The upper eyes as seen from above



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1924L New Spiders from Southern New England 143 form a straight line.
The lateral eyes of the front row nearly touch those of the upper row. The middle eyes %re much lower and twice their diameter apart.
The male palpi have the patella and tibia very short, the tibia widened at the end covering the base of the tarsus. Fig. 4 C. d- The tarsus is oval and the pajpal organ very simple with a short tube supported by a slightly longer and wider process. Fig. 4c.
Chatham, Mass., June 10, 1919. Riverhead, L. I., Sept., walking on railroad track, C. R,. Crosby. Charleston, S. C., J. H. Emerton.
The specimen described by Cambridge was
from Guatemala.
Lophocarenum hortense n. sp.
A large and light colored species, 3 mm. long. Cephalo- thorax light orange brown, legs and palpi pale yellowish; ab- domen yellowish white with fine gray hairs. The general ap- pearance is like L. domiciliurum? Em. which has been found only once. The head is low and has very small grooves and shallow pits just behind the eyes.
Fig. 5a.
The male palpi
have patella and tibia both short,
The tibia is as wide as long
and has only s,hort projections on the front edge. Fig. 5b. The
brsus is short and almost round.
The palpal organ is shown




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144 G - Psyche [June-August
in Fig. 5c. The principal process has the end curved over in a double hook which nearly meets a sharp point branching from below.
Fig. 5.
Lofihoca~enwn hortense n. sp.
One male only from weeds in an asparagus field) Holliston, Mass. N. Banks.
Clubiona agrestis n. sp.
4.5 mm. long. Cephalothorax 2 mm. long) the head a little more than half as wide as the thorax and only slightly darker in color. 1A general, it resembles C. spiralis, but is distinguished from it by the palpal characters. The tibia of the male palpus has two hooks on the outer side of about the same size. Fig. 6a.



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19241 *Vew Spiders jrom Southern New England 145 The palpal organ has the hard process on the under side blunt with several short teeth on the inner side as shown in Fig. 6b. Fig. 6.
Clubiona agrestis n. sp.
Holliston, Mass., June 17; one mature male and one jwt molted.




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