26 



SUPPLEMENT TO PSYCHE. 



[April i8q*. 



relativus, biU is verv distinct from that 

 species in size and other characters. 



Agallia bigeloviae, n. sp. — Form and 

 color, nearlj, of a small, pale A. saitguino- 

 lenia. The female differs only as follows. 



More robust. Sculpturing on posterior 

 three-fourths of pronoturn not nearly so 

 coarse. Veins in elytra more prominently 

 brown. Two rnedial bi'own dashes on pro- 

 notuin and vertex. Black spots on vertex 

 larger. Elytra barely equalling abdomen. 

 Hind margin of last ventral segment thrice 

 stronglv notched, the middle notch ver\' deep 



and nuich more obtuse at apex than the lat- 

 eral, the two lobes thus formed obtusely 

 rounded at tips and much shorter than the 

 hind angles of the segment. Length little 

 more than 2 mm. 



Described from a single female taken 

 on Bigelovia at Albuquerque (Ckll.. 4616). 

 This species is very nearly related to A. 

 sanguinolenta, but easily separated by the 

 above mentioned characters, especially the 

 form of the last ventral segment. A larger 

 series of this insect is much needed for 

 stud v. 



XIII. New Species of Prosapis. 



BV T. D. A. COCKERELL. 



The name Pro^opis is preoccupied for a 

 genus of plants, on the flowers of which 

 the bees of the genus Prosopis are some- 

 times found. I have therefore ventured to 

 write the bee-genus Prosapis ( irpos-airis) , a 

 name which accords with the a^sumed fact 

 that it is one of the most primitive among 

 bees. 



Prosapis bakeri, n. sp. — jj , length 5 mm., 

 black, with creamy markings, punctures of 

 head and thorax fine and close. Head rather 

 broad ; face not much narrowed below, white 

 below level of antennae, the white extending 

 as a pointed projection upwards in median 

 line, and on each side as a club-shaped pro- 

 cess, curved over the antennal socket, and 

 remote from the orbital margin. The two 

 sides of the median pointed process meet at 

 an angle of almost 45°. Flagellum very dark 

 brown, paler beneath. Scape swollen, trun- 

 cate, its anterior side white and posterior side 

 black. Prothorax all dark, except the usual 

 creamy-white spot on tubercles, which pre- 

 sents no dark dot. Tegulae with a yellow 

 spot. Pubescence all pale. Pleura rather 

 hairy, closely and rather coarsely but not 

 very deeply punctured. Dorsal wrinkles of 

 metathorax rather feeble. Wings grayish- 



hyaline, nervures and stigma piceous. 

 Second submarginal narrowed one-half to 

 marginal. Femora black; tarsi yellowish- 

 white with the ends darkened ; anterior tibiae 

 yellowish-white in front ; middle tibiae with 

 the basal fourth, and hind tibiae with the 

 basal two-fifths yellowish-white. Abdomen 

 modenitely shining, very minutely punctured, 

 slightly pubescent at sides, but without any 

 conspicuous hair-bands or patches. 



Hab. — Colorado; seven miles W. of Liver- 

 more, Larimer Co., July i, 1894. 7000 feet 

 (C. F. Baker). 



Allied to rudbeckiae^ but differs by the 

 white face, the half white scape, and the 

 white frontal process curving over the anten- 

 nae, etc. 



Prosapis wootoni, n. sp. — $ about 54 

 mm. long, black with pale dull yellow 

 markings, head and thorax closely punc- 

 tured. Pubescence pale, including that 

 of dorsum of mesothorax. Head rather 

 large and broad, face moderately narrowed 

 below. Antennae entirely piceous. scape 

 only moderately swollen. Face below 

 antennae pale yellow, the yellow forming 

 onlv a rounded projection in the median 

 line, but at the sides produced upwards 



