S. N. DUNNING. 21 



from Colorado and Montana show markings very pale yellow. The 

 var. 9 mentioned by Mr. E. T. Cresson in his Monograph of N. A, 

 Philanthidte (Proc. Ent. Soc. Phila., vol. v, p. 88, 1865) belongs to 

 .•mhfrif/idus. 



Aphilaiitliops siibfri^idiisi n. sp. 



9.— Length 11-16 mm. Black, with bright yellow markings. Head closely 

 and finely punctured on vertex, face covered with a thin growth of hair, 

 black except three broad stripes on face yellow (like frigidu-s, but more ex- 

 tended and usually all connected anteriorly, making whole of face except two 

 narrow diverging lines helow antennse yellow), also a yellow line on posterior 

 orbits; eyes farther apart than their greatest length; third joint of antennee 

 distinctly longer than distance from hind ocelli to eye margin, no smooth shining 

 spot behind; clypens 5-dentate, a few shallow punctures; mandibles piceous- 

 yellow outwardly at base; antennae subfiliform, scape yellow spotted, black, tip 

 of last joint only ferruginous, third joint longer than 4-5 combined. Thorax 

 black, a band, usually interrupted, on collar, spot on scutellum, post-scutellura, 

 posterior angles (all liable to be absent), tegulje and spot behind tubercles yellow, 

 a fairly long growth of hair mostly below and posteriorly; mesothorax wrinkled, 

 closely and finely punctured ; scutellum closely and a little more finely punc- 

 tured ; metathorax finely and closely punctured, elevation not smooth shining, 

 not divided by suture, a cavity above. Abdomen black, with deep yellow spots 

 on first segment, a usually disconnected band on second, a sometimes disconnected 

 band on third, i)ands on segments four and five, sixth usually yellow, or yellow 

 and piceous, sometimes piceous alone, shaped like frigidus, subdepressed, a very 

 few hairs at base: venter black, usually yellow marked, with quite a sweep of 

 hairs. Legs as in frigidHS. except yellow is more pronounced. Wings fulvous' 

 nervures lighter than frigidua, no light spot before stigma. 



% . — Length 8-13 mm. Abdomen ovate, eyesabout as far apart as their greatest 

 length, clypeus 3-dentate, a yellow band on sixth segment, face (usually) covered 

 with a thin growth of hair, otherwise as in J. 



Twenty-one females, twenty-nine males. Washington, Nevada, 

 Vancouver Island. The specimens from Vancouver (all males) 

 show color almost white. This may be due to an immersion in 

 spirits. 



Apliilantliops fo.Yi n. sp. 



%. — Length 13-14 mm. Mostly bright yellow, a few black markings. Head 

 yellow, except irregular line across vertex and subquadrate patch back of this 

 which are black, vertex closely and finely punctured ; eyes as far apart as 

 their greatest length ; hind ocelli about the distance of two-thirds of third 

 antennal joint from eye-margin, no smooth shining spot behind ; mandibles 

 yellow, red tipped ; clypeus irregular, but not dentate, mustache dull red ; scape 

 yellow, flagellum filiform, first joint black and second partly so, next five or six 

 joints rust colored, tip darker, third antennal joint longer than 4-.'i combined. 

 Thorax yellow, with three narrow lines on mesothorax, a baud across posterior 

 edge of the same, a wider band across front edge, metathorax connected by a nar- 

 row line with a subquadrate patch on posterior face (which contains a few yellow- 

 dots) and a wedge-shaped mark near middle coxie, all black ; covered with a thin 



TR.\NS. AM. ENT. SOU. XXV. FEBRU.iEY, 1H98. 



