$Steatoda triangulosa.$--The female is a fifth of an inch to a quarter of an inch long. The legs are longer and more slender than in the other species, the first pair twice as long as the body. The cephalothorax is orange brown, slightly rough in females and with short ridges at the base of the hairs in males. The front middle eyes are not larger than the others and are not as far forward as in _borealis_. The legs are light yellow, with slightly darker rings at the ends of the joints. There are thickened brown spots at the base of the hairs all over the body. The abdomen is light yellow, with two irregular brown stripes partly broken into spots and sometimes connected together (fig. 286). The palpi of the male are as long as the femur of the second legs and are small at the end. This spider lives in houses, around window frames and similar places, like _borealis_. The egg cocoons are white and hang in the web. [Illustration: FIG. 287. Asagena americana.--Back of female enlarged eight times.] $Asagena americana.$--This resembles Steatoda, but the abdomen is longer and flatter, and the whole appearance more like some of the Drassidæ. Like Steatoda, it is usually found with its web under stones. It is about a sixth of an inch long. The cephalothorax is dark reddish brown, slightly rough in the females and with sharp points along the sides in the males. The legs are yellow brown and in the males have two rows of small teeth under each femur. They are stout, as in _Steatoda marmorata_, and differ little in length. The abdomen is oval and dark brown in color, with two white spots across the middle (fig. 287). The front of the head is rounded and a third as wide as the thorax. The eyes are close together and all about the same size. The males have the cephalothorax larger and rougher, but in size and color resemble the females. [Illustration: FIGS. 288, 289, 290, 291. Latrodectus mactans.--288, female enlarged twice. 289, under side of abdomen. 290, back of abdomen of young female, with four red spots. 291, markings of abdomen of male.]