S. N. DUNNING. 25 



Thirty-six specimens, Montana. Ashmead's type was from Colo. 

 Prof. Cockerell has taken this species on Blgelovia wrightll in the 

 MesilLi Valley, New Mexico. 



Apliilaiitltops couciiiuulus Ckll. 



ApMlanthops concinnulm CkW., V-An.'Ejnt.^-s.v\\\,\>. 221. %, (not 9)-(i896). 



%. — Length 6-8 mm. Black and rufous (sometimes almost all black) with 

 yellowish white markings. Head black, except most of middle lobe of clypeus 

 and side pieces (all forming a band) which are yellowish white, finely but sparsely 

 punctured, a growth of silvery hair very dense on face; eyes slightly farther 

 apart than their greatest length ; ocelli distance of length of third joint of an- 

 tennte from eye-margin, a barely noticeable smooth, shining spot behind ; man- 

 dibles rufous, darker at tips, yellow without at base; third joint of antennse long 

 as 4- 5 combined, scape yellow spotted, flagellum dark rufous, filiform. Thorax 

 with a growth of short silvery hair, black (metiithorax sometimes rufous), with 

 collar, scutellums anteriorly and scapulae, post-scutellum, lateral angles, tegulse, 

 tubercles and spot behind, all yellowish white; mesothorax with large rough 

 punctures, mediumly close, not wrinkled; scutellum shining, smooth ; metatho- 

 rax inclined to rugose, elevation not shining, suture narrower than in concinnulns- 

 Abdomen ovate, a, few pale hairs, large punctures on segment 1, finer and closer 

 on following, black or rufous, or both intermingled on segments 1-3. rest black ; 

 bands on segments 1-5 (emarginate posteriorly on first and divided on second, 

 and sometimes on third) and a spot on segment 6, all yellowish white; venter 

 with hairs, large punctures, banded with yellowish white, ground color same as 

 above. Legs rufous, four posterior tarsi darker, knees and the tibia without 

 yellowish white. Wings not clouded, nervures and stigma very dark, a light 

 spot before latter. 



Three specimens, Rincon, N. Mex. (on Chilopsis saliyna). This 

 may be a subspecies or race of utahensis. 



Apliilanthops iitahensisi Baker. 



Aphildnthops ufdhensis Baker, Can. Ent. xxvii, p. 335 (1895), %. 

 Aphilanthops concmnulus Ckll., Can. Ent. xxviii, p. 221 (1896), 9 (^ot % ). 

 9- — Length 9 mm. Eufous, with yellow-white markings. Head rufous, with 

 irregular dark band across region of ocelli, covered with a thin growth of silvery 

 hair, finely and sparsely punctured ; eyes as far apart as their greate.st length ; 

 ocelli as far from eye-margin as length of third joint of antennae, a not very 

 distinct, smooth, shining spot behind; clypeus rounded, not dentate; mandibles 

 rufous, black tipped, a yellow spot outwardly at base; anteunge rufous, darker 

 above, filiform, third as long as 4-5 combined. Thorax rufous, with collar, 

 scutellum anteriorly, scapulte, post-scutellum, tegula;, tubercles and spot behind, 

 yellow ; covered with a spai'se growth of silvery hair mostly below and behind ; 

 mesothorax not distinctly wrinkled, with medium sized sparse punctures; 

 scutellum smooth, shining, not punctured ; post-scutellum edged with black ; 

 metathorax rugose rather than punctured, elevation not smooth shining, divided 

 by suture, cavity above with crosswise wrinkles. Abdomen rufous, darker 

 posteriorly, two spots on segment 1, an interrupted band on segments 2-3, a 

 band, narrow on posterior edge, on segment 4, a spot on 5, all pale yellow, almost 

 white ; roughly punctured on first and more finely on rest, fairly close ; a few 

 scattered white hairs; apical segment as in quadrhiotatus, but is twice emarginate 



TRANS. AM. ENT. SOC. XXV. (4) MARCH. 1898. 



