VO i889. n ] PROCEEDINGS OF THE NATIONAL MUSEUM. 593 



ZTrocteidce. In 1884 Simon discovered that his Miltia was identical with Hentz's genua Prodidomus 

 and that consequently the name Miltia had to ho dropped for Hentz's name. I, therefore, change the 

 name of the family in accordance with the type genus into Prodidomidce. 



12. mawdi&«Za«a.— Keyserling erroneously took mandibulata for the male of pusilla, while the real 

 male of this species is a different form ; therefore mandibulata remains a good species, especially as 

 the female has heen collected in Tennessee. 



13. Although Emerton admits that the eyes of his two species are all of the same size he brings 

 them under a genus which is (list inguished by the minute anterior middle eyes. These two species are, 

 therefore, not Pholcomma at all, hut I have to let them stay here provisionally as I have had no oppor- 

 tunity to study them. 



14. Erigone.— T,y following Keyserling in not recognizing Menge's, Emerton's, and Simon's breaking 

 up of the genus Erigone into many smaller genera and, therefore, reuniting the species again under the 

 one genus Erigone, I was compelled to change the homonymous names of some of Emerton's species as 

 follows: Cornicularia minuta=Erigone paullula ,- Lophocarenum pallidu7n= Erigone pallens; Tme- 

 ticus pallidu8= Erigone pallescens; Trneticus montanus = Erigone collina; Tincticus tibialis — Erigone 

 monticola : Tin: ticus brunneus = Erigone fusca. 



15. Acrosoma gracile.— In regard to the use of "Walckenaer's specific names made for Abbot's illus- 

 trations my views correspond with those of Dr. McCook as expressed in the Proceedings of the 

 Academy of Natural Sciences, Philadelphia, pp. 1 and 428, 1888. 



16. Acro&oma aculeatum. — C. Koch gives the patria of Acr. aculeatum and crassispi num as "Amerika." 

 The Germans generally understand by "Amerika" North America, and as the two species are 

 closely related to gracile and sagittatum I have included them in this catalogue, hut have given them 

 a separate place. 



17. foliata Hentz.— Walckenaer used the name/o!i«to for Ep. comuta ; for Hentz's name I proposed 

 folifera. 



18. globosa Keyserling.— Keyserling described this Spider as globosa first in 1865. Emerton is wrong 

 in substituting McCook's name triaranea, 1870. 



10. macula ta Keyserling.— This Spider, though related, is not identical with Ep. gibberom, as Em- 

 erton erroneously asserts. 



a Heutz.— This variety seems to me to belong rather to marmorea (insularis, Hentz) than 

 to trifolium, as the coloration of the legs, especially that of femur IV indicates. 



21. septima Hentz.— Amongst a lot of Epeira cavatica Keyserling which I received from Tennessee 

 I found a few specimens which resemble most exactly the description and illustration of Hentz's 

 septima. As Hentz records this Spider from North Carolina and Alabama, where cavatica is quite 

 common, there is no doubt that it is a variety of casatica and not of trifolium as Emerton asserts. 



•22. bifurca, McCook.— This is clearly no Cyrtophora. In this genus the lateral eyes are disjoined 

 for a distance nearly equal to their diameter, which is not the case with bifurca. 



23. Cyolosa conica.— The Spider which Emerton described under this name is, according to Keyser- 

 ling in lift., not conica Pallas, hut caudata Hentz, turbinata, Walck. I have, however, in my collection 

 the true conica Pallas, from San Diego, Cal. 



24. Theridiosoma Cambr.— Dr. McCook was certainly right to place his Epeira radiosa in the family 

 Epeiridm. Not only do the structural characters, the position of the eyes near the clypeus, the form 

 of the maxilla), etc., but the biological fact, first discovered by I hat naturalist, that this Spider constructs 

 an orb web, of which the spiral threads are viscid, all warrant such placing. As radiosa is, however, 

 a Theridiosoma, according to Thorell and Keyserling, we have to drop Emerton's new genus Micro- 

 epeira (a barbaric name by the way) and transfer the genus Theridiosoma to the Orbitelarice, fam. 

 Epeiridce. 



25. Tetragnathidiv.— Keyserling in Die Arachn. Australiens, No. 36, p. 218, has given us a splendid 

 subdivision of tho large genus Tetragnathct according to the following key : 



■■ C Space betw. LE not greater than that betw. A ME and PME. . .Tetragnatha 



\ Space betw. LE greater 2 



j Spinnerets terminal Eugnalka 



" \ Abdomen extending beyond spinnerets Eucta 



26. Thomisus. This is not the genus Thomisus of our modern authorities as Thorell, Keyserling, 

 Simon, etc., but the old "Walckenaerean genus, which compiised once nearly all the genera of this fam- 

 ily. I have collected all species under this name which have not yet been re-arranged, giving to these 

 the proper synonyms which I could collect in the present literature. 



27. inquisitor Thorell.— As this name is preoccupied by "Walckenaer, I have substituted for it Tho- 

 rellii. 



28. obscurus Keyserling. This species name is also preoccupied by Blackwall, and had to he changed 

 into Keyserlingii. 



Proc. K M. 89 38 



