150 Transactions. — Zoology. 



similar colour behind %-iilva. Corpus vulva black ; oval, fcur- 

 roiiiided by two costse rapidly svidening in front, deeply cleft 

 above the' rima genitahs by' a longitudinal, narrow-ovate, 

 yellowish depression, on either side of depression is a broad- 

 ovate fovea. 



Stratford, .4. T. U. 



Theridinm litei'atum, sp. nov. 



Female. — Ceph.-th., long, 1-6 : broad, 1-4. Abd., long. 3; 

 broad, 2-3. Legs, 1, 2, 4, 3 = 8-2, 7, 6-4, 4-5 mm. 



Cephalothorax amber - colour, median band on caput 

 mahogany-brown, broad, somewhat crenate ; marginal zone 

 lightly pencilled with oHve-browTi, deeper tone on clypeus; few 

 bristles; pars cephahca convex, roundly tmncated, lateral 

 index short ; clypeus incUned rather forwards, height rather 

 more than one-half facial space ; pais thoracica broad-oval, 

 convex ; fovea elHptical, longitudinal ; normal grooves fairly 

 well defiiied : profile-line rises from thoracic junction at an 

 angle of about 45', slopes across caput with a shght curve. 



Eyes large, on dark rings ; posterior row nearly straight ; 

 centrals rather further from laterals than they are from each 

 other, a space equal to three-fourths theii' diameter, removed 

 from fore-centrals by about the former interval ; anterior row 

 moderately recurved ; median eyes about one-fom-th smaller 

 than posterior pair, separated from one another by rather less 

 than their diameter, and from side-eyes by an intei-val per- 

 ceptibly shorter than their radius ; laterals ^"isibly larger than 

 hind-centrals, have their pearl-grey lustre, contiguous, posited 

 obUquely on moderately strong, dark, tubercular eminences. 



Legs shade lighter than cephalothorax, Hghtly mottled, 

 especially on thighs, with ohve-gi-een ; two not strongly pro- 

 nounced bro^vn annuli on femoral, tibial, and metatarsal joints; 

 basal rings on femora more or less obliterated; moderately 

 slender; fairly fm-nished with hairs ; few very slender spines; 

 superior tarsal claws — first pair, 16 teeth, 14 rather even open 

 comb-teeth, 2 basal small ; free end moderately cru-ved ; in- 

 ferior claw sharply bent, 2 points. 



Palpi colour and armature of legs; humeral joint rather 

 shorter than digital, and longer than genual and radial together; 

 palpal claw 10 teeth, 7 strong, 3 basal smaller. 



Fakes amber-colour, fore-part mottled with olive-gi-een, 

 bare, semi-oval patch on base ; conical, vertical, less than one- 

 fourth shorter than digital joint of palpus, as stout as thighs 

 of second pau of legs. 



Maxillce yellowish, large, oval, orange-brown patch in 

 centre ; stout, fore -half semi - elliptical, incUned towards 

 lip. 



