548 HARVEST-i=;PIDERS OF OHIO WEKD. 



Dorsum minutely tubciculato, almost apix'aiiu^ liiioly jj^raimlate, 

 ferruginous brown, somewhat darker in front, with a faint indication 

 of a dark central marking in some specimens, and indistinct trans- 

 verse rows of yellowish dots. Eye eminence developed, slightly longer 

 than high, black above, very slightly canaliculate, witli two rows of 

 small, black tubercles, frequently subobsolete. Mandibles light brown, 

 tips of claws black ; second article with sparse, dark hairs. Palpi 

 slender, grayish or brownish in some specimens, with more or less 

 black on basal joints ; femur with short, scattered hairs ; ventral sur- 

 face beset with well-developed black tubercles ; i)atella curved, with 

 short hairs and small black tubercles ; tibia and taisus thickly beset 

 with short hairs, without tubercles, except a subobsolete row on the 

 inner ventro-lateral surface of tarsus. Ventrum grayish brown, ce[)ha- 

 lic portion tuberculate. Legs, including trochanters, l)lack ; trochan- 

 ters tuberculate ; femora, patellae, and tibiae with rows of small spines. 

 Shaft of genital organ straight, except at tip, broad. Hat ; about two- 

 thirds of the way from the base to the apex ex[)anding into an alate 

 portion, which continues for about one-tiftli the entire length of the 

 shaft, then suddenly contracting into a rather robust, curved, cana- 

 liculate end, and terminating in an acute point ; with two curved spinous 

 hairs just behind the base of the jointed tip. 



Female. — Body 9""" long ; 4'"" wide; palpi 4.5""" long. Legs: first, 

 28"'"- second, 48"'"'; third,^'^-"- fourth, 40"'"'. 



J5esides its larger size the female differs from the male in the much 

 darker color of the dorsum, which varies from dark ferruginous brown 

 to almost black ; in color of ventrum, which is grayish rather than brown ; 

 and in having the legs, except tro(;hanters, brown rather than black. 



Specimens of this species have been collected in Clermont County, 

 August, 1890; Franklin, July 7-10, 1800; Warren, June 28, July 23, 1891). 



The sexes of this species are quite unlike. In lirst going over my 

 collections I separated tlu^ males in one series ami the females in 

 another, thinking them different species, but on finding that the speci 

 mens of one of the sui)posed kinds were all males and the others all 

 fenmles, and that in nearly every instance the two forms had been taken 

 at the same time and place, 1 had little hesitancy in considering them 

 the same. 



During July, 1890, this form was very common in central Ohio. But 

 it does not ai)pear to be so in other places, as 1 have no specimens from 

 any other state except Illinois. 



Liobunum poll turn Weed. 



(Plato LXi.) 



Liohiniitm jwlitiim, Weed, Bull. 111. St. Labr. Nat. Hist., iii, p. Sit; Aiiier. Nat., xxv, 

 p. 2!)r>; Traus. Am. Ent. Soc, xix, p. 260. 



Male. — liody o"" long; 2.8 ' wide; palpi 3.5"'" long. Legs: first, 



25"""; second, 51 '; third, 20'""' ; fourth, 3G'""'. 



