14 



ANDRENID^. 



9. Prosopis rupestris. 



P. atra, fronte linea maculata, tibiis posticis flavo annulatis. 



Prosopis rupestris, Smith, Ent. Ann, (1872) p. 103 $. 



Female. Length 2| lines. — Black; the head and thorax scmiopaque ; 

 the basal segment of the abdomen impunctate and very glossy, the 

 following segments shining and very delicately punctured. The 

 head short and rounded ; the nagellum slightly piceous beneath ; 

 on each side of the face a pale yellowish-white line that does not 

 run higher than the insertion of the antennae. A spot on the 

 tegulse in front, the tubercles, and the base of the posterior tibiae 

 yellowish white. The wings subhyaline, the nervures black ; the 

 first recurrent nervure uniting with the first transverse median ner- 

 vure, the second recurrent nervure entering the second submarginal 

 cell near its apex. The metathorax abruptly truncate ; a triangular 

 enclosed space at its base coarsely rugose with longitudinal 

 furrows. 



This species was discovered in 1872 at Sidmouth, S. Devon, 

 during the month of August ; as the male was not found, probably 

 July would be the best time to meet with it. Three species belonging 

 to this genus have a close general resemblance ; they are P. hyalinata, 

 P. perforator, and P. rupestris. They may be distinguished as fol- 

 lows : — The face of P. hyalinata is comparatively oblong triangular, 

 the nagellum of the antennae pale fulvous beneath, and the spots 

 on the face of the female are of an elongate angular shape. The 

 face of P. rupestris is shorter and rounder, and the spots are nearly 

 parallel lines, being very slightly broadest below ; the antennas are 

 black, the flagellum occasionally obscurely piceous beneath. P. per- 

 forator is smaller than the others ; its face as broad as long, the spots 

 like those of P. rupestris, but its metathorax is less coarsely sculp- 

 tured. I believe several other small species will yet be discovered. 



10. Prosopis variegata. 



P. atra, thorace maculato ; abdomine rufo, apice fusco, segmentorum 

 marginibus cinereis ; tibiis albo annulatis. 



Prosopis variegata, Fair. Syst. Piez. 295. 



St.-Farg. Ilym. ii. 534. 



Smith, Bees Great Brit. 14. 



Schenck, Nass. Bien. 318. 

 Prosopis colorata, Panz. Faun. Germ. 89. 14. 

 Hylseus variegatus. Smith, Zool. vi. 2202. 



Female. Length 2-3 lines. — Black ; a cream-coloured line on each 

 side of the face nearly extending to the vertex ; a spot or line of 

 the same colour on the anterior margin of the clypeus; the flagellum 

 fulvous beneath, except one or two of its basal joints. Thorax : 

 the collar, tubercles, and tegulae in front, also a spot on each side 

 at the base of the scutellum cream-coloured : all the tibiae at their 



