22 AMERICAN HYMENOPTKRA. 



growth of short white hairs somewhat longer on posterior angles; mesothorax 

 finely and sparsely punctured ; scutellum and post-scutelluni smooth shining, 

 not punctured ; metathorax, except elevation, which is smooth shining, roughly 

 and closely punctured. Abdomen closely covered with medium-sized punctures; 

 yellow, with a narrow, posterior, rufous-colored band on segments 1 to 4 or 5. rest 

 yellow, except tip, which is rufous tinted ; a very short growth of white hair 

 above; venter mostly yellow, a longer growth of white hair. Legs yellow, ex- 

 cept spot on under side of femora and tip of first and all of remaining tansal 

 joints, which are rufous. Wings not clouded, clear, stigma and uervures rust 

 colored, stigma without light spot before. 



Two s})ecimens collected by Mr. D. W. Coquillett (and deposited 

 by Mr. W. J. Fox in the collection Acad, Nat. Sci.), one from 

 Southern California and the other from San Diego County same State. 

 The collection of the U. S. National Museum contains two other 

 examples of this species. 



Dedicated to Mr. Wm. J. Fox. 



Apliilaiithops bakeri Dun. 



ApJiUanihops bakeri Dunning. Can. Eut. vol xxviii, p. 20.3 (1896). 

 % . — Length 8.5 10 mm. Black with bright yellow markings. Head closely 

 and finely punctured, covered with a fine white down, black except face and line 

 behind eyes; eyes about as far apart as their gi-eatest length; ocelli about 

 distance of length of third antennal joint from eye-margin, no smooth shin- 

 ing spot behind ; clypeus not dentate, but with three not very distinct lobes; 

 mandibles yellow, rufous at tip; third joint of antennse shorter than joints 

 4-5 combined, scape yellow spotted, flagellum rufous (more or less) on first 

 half and tip, rest black, filiform. Thorax covered with a growth of fine white 

 hair, i)lack except collar, sometimes a spot below, tegulse, tubercles, crescent- 

 shaped spot back of tubercles, a V-shaped mark below and back of this, spots on 

 scutellum and post-scutellum and posterior angles, yellow; mesothorax finely, 

 but not as closely punctured as head, wrinkled ; scutellum more sparsely punc- 

 tured, smooth shining; metathorax finely punctured, elevation not shining or 

 divided by suture. Abdomen closely and finely punctured, except finst segment, 

 which is coarse ; a more sparse growth of fine down posteriorly ; first segment 

 spotted, 2-6 with bands narrowed in center, sometimes disconnected, all yellow, 

 rest black; venter black and fairly hairy, liberally spotted with yellow; coxa- 

 and trochanters yellow spotted; first four-fifths of femora outwardly black, rest 

 yellow; tibia yellow, except dark spot inwardly and tip, which is inclined to 

 rufous; tarsi inclined to rufous, except first joint, which is yellow. Wings in- 

 clined to dusky, nervures and stigma ferruginous with a light spot before stigma. 



Two males, Colorado, collected by Prof C. F. Baker, 



Aphilaiithops laticiiictus Cr. 



Philanthus laticinctus Cressou, Proc. Eut. Soc. Phila. v, 91,(1865). 



Aphilunthops laticinctus Patton, 1. c. 

 *£.— Length 5-9 mm. Black with lemon-yellow markings. Head black, ex- 

 cept yellow anteriorly on clypeus and side pieces, covered with a dense growth 

 of short silvery hair, closely and finely punctured ; eyes above about as far 

 apart as their greatest length or a little more ; no smooth spot behind ocelli. 



