undescribed Genera and Species o/'Araneidae. 193 



immediately above the insertion of the palpi ; the second joint 

 of the latter organs is robust ; the third and fourth joints are 

 very short, a strong bristle, rough with projecting points on 

 the under side, depending from a prominence on the upper 

 part of the anterior extremity of the former ; the fifth joint is 

 oval, convex externally, concave within, comprising the sexual 

 organs, which are complex, with a curved pointed projection 

 on the upper part ; their colour is red-brown. 



This species of Linyphia is plentiful in September and Oc- 

 tober, in the plantations about Crumpsall Hall, constructing, 

 among the coarse grass beneath the trees, a horizontal web, 

 three or four inches in diameter, on a plan similar to that em- 

 ployed by the other species of the genus. Like them, too, it is 

 usually found on the under side of the horizontal sheet in an 

 inverted position. 



Tribe, CiTiGRADiE, Latreille. 

 Genus, Hecaerge. 



Eyes eight in number, unequal in size, disposed in two 

 transverse rows on the anterior part of the cephalothorax ; 

 the four constituting the anterior row, which is slightly curved 

 backwards, are adjacent and minute, the two lateral ones being 

 the smallest of the eight; the posterior row is greatly curved, 

 with its convexity directed forwards ; it comprises the other 

 four eyes, which are large and separated by moderately wide 

 intervals. 



Maxillae short, strong, convex on the under side, enlarged 

 at the base where the palpi are inserted, rounded at the ex- 

 tremities, and inclined towards the lip. 



Lip small, as broad as long, triangular, truncated at the 

 apex. 



Legs powerful; the fourth pair is the longest, then the first, 

 the third pair being the shortest. 



The spiders belonging to this genus are erratic, taking 

 their prey by surprise. 



Hecaerge maculata, 

 Cephalothorax oval, convex above, depressed in the pos- 

 terior region, pointed before, and covered with short hairs ; 

 its colour pale yellowish-brown, with a broad dark-brown 

 band extending along each side of the medial line, and two 

 fine lines of the same hue on the lateral margins ; a few longish 

 white hairs, directed forwards, occupy the space between the 

 two intermediate pairs of eyes, and immediately below the 

 anterior row of eyes is a small transverse parallel line of a 



Third Series. Vol. 3. No. 15. Sept, 1833. 2 C 



