1968] 
Coyle - — Spider Genus Atypoides 
169 
teriorly. Sternum slightly paler yellowish gray than pars thoracica, 
labium and palpal coxae slightly darker than pars thoracica. Cheli- 
cerae reddish brown to dark brown. Palpal femur and patella and 
dorsal surface of leg I light greenish brown to reddish brown ; palpal 
tibia much lighter. Rest of legs dorsally similar to pars thoracica, 
ventrally lighter. Abdomen dull purplish brown with many small 
scattered light spots. Tri-nodal abdominal pattern a darker olive 
brown; tergite lighter yellowish gray. 
Female. Carapace: (Figs. 1, 2, 16). Somewhat elongate; in- 
creases slightly in width from post, to near ant. end where it suddenly 
narrows. Shape and position of thoracic groove and distribution of 
setae similar to that in male. Pars cephalica usually strongly elevated, 
highest point just behind eye group. Height of clypeus 1 to 2 times 
vertical diameter of ALE. Diam. of AME 3/4 to 1 1/2 times their 
distance apart. Sternum: (Fig. 40). Elongate. Sigilla shape and 
distribution as in male. Sternal setae concentrated around edges of 
sternum; many stout sharply pointed ones. Chelicerae : (Figs. 1, 2, 
42). Dorsal protuberance prominent, post, slope steep. Microteeth 
positioned beside last 9 to last 3 macroteeth and usually extend beyond 
last macrotooth. Only a very narrow seta-less area on ectal side of 
ant. half of macrotooth row. Abdomen: A single tergite corres- 
ponding to tergite of central node on male abdomen. Spinnerets: 
(Figs. 31, 33, 34). AL with or without spigot at tip, AL 1/3 to 
1/2 as long as PM. PM slightly expanded to unexpanded distally, 
maximum diam. 1/3 to 1/2 length. Genitalia: (Figs. 80-86). Sem- 
inal receptacles with relatively long, very heavily sclerotized, straight 
or slightly curved stalk; bowl strongly developed. Ant. portion of 
bursa copulatrix a relatively heavily sclerotized pocket which in dorsal 
view appears as a transverse bipartite darkened area at bases of 
seminal receptacles. Coloration: Pars thoracica yellowish gray to 
pale greenish brown. Pars cephalica darker; light brown to greenish 
brown. Sternum slightly lighter than pars thoracica; labium and pal- 
pal coxae slightly darker than pars cephalica. Palpal segments and 
legs dorsally similar to pars thoracica (except tarsi of palpi and of 
legs I considerably darker), lighter ventrally. Abdomen dull pur- 
plish brown, frequently darker than male abdomen, and without 
dark tri-nodal pattern of male; tergite yellowish gray. 
diagnosis. Both sexes can be readily distinguished from the other 
species by their darker abdominal coloration. Males. The structure 
of the palpus (Figs. 53-56 ) and the shapes and macrosetae distribu- 
tion patterns of the tibia and metatarsus of leg I (Figs. 68-70) are 
distinctive for this species. IML/CL and IFL/IML (Table I) 
