192 



closely so; abdoiiu'ii covered with sparse dirty whitish pubescence more 

 abundant apically and with lateral basal patches of appressed whitsh 

 hair on segments 2 and 3 an.l similar hair scattered over segment 4. 

 Length about 614 mm- 



M.t.s. nciii- Chircniont, Ca]. (Bi.ker;) on Salix. This is an Evi/Uum. 



4(587 Halictns latifrons n. sp- 



PUack. lie.-id and thorax firely lineolate, thorax somewhat shiny; 

 facial (piadraiigle much broader than long; head and thorax with 

 abundant long rather ochrace.ms pubescence; face above antennae clo- 

 sely punctate. p)unctures crowidcd; sides of face below antennae as if 

 with short vertical striae caused by sparse oblique punctures opening 

 towards the eyes: clypeus an! supraclypeal area shining, with sparse 

 fine punctur(>s; niesothorax with fine close punctures; median and 

 parapsidal grooves distiuct;- base of metathorax finely irregularly 

 rugulo'se to apex; salient rim of truncation not reaching to upper la- 

 teral angles but faintly indicated above; truncation not sculptured, 

 finely lineolate and with scattered setigerous punctures; metapleurae 

 finely; wings slightly dusky, nervures honey-color; second submarginal 

 much smaller than third; third only slightly narrowed above; tegulae 

 largely testaceous; legs darix lirownish; hind inner spur with about 

 seven very oblique teeth; abdomen brownish black, shiny, first segm- 

 ent finely sparsely punctured, oflier segments closdly so at bases; 

 depressed apical margins finely transversely lineolate and largely 

 testaceous; small lateral basal hsir patches on segments 2 and 3- Length 

 about 7 mm. Santa Clara Co., Calif. (Baker.) 



Differs from arcudtiis in tlie non-sculptured truncation of metathorax, 

 finer sculpture of l)ase of metathorax, salient rim of truncation not 

 complete and smaller size; from granosus in its smaller size, finer 

 sculpture of base of metathorax, and finer, closer punctures on abdomen; 

 occnltus is said to greatly resemhle granosus but has the four tee(th 

 of hind inner spur oblique and only hair patches on segments 2 and 3, 

 so the same characters may apply. Differs further from all of the 

 above in the numerous teeth of the hind inner spur- This is an 

 Evylaeus. 



468S Halictus ruficornis n. sp. 



Blaclv, shiny, face closely and finely punctured above antennae; face 

 Idng and narrow, covered witli dense white appressed pubescence below 

 antennae; antennae long, flagelhim fulvous beneath, joint 4 longer than 

 2-3; clypeus anteriorly, and irumdibles basally, yellowish; knees and^ 

 tarsi testaceous, tubercles reddish; mesothorax finely and closely punctu- 

 red, shiny, liueolated only aixteriorly, median and parapsidal grooves 



