8 ANDRENID^". 



1. Prosopis communis. 



P. atra, fronte maculata, tibiis posticis albido maculatis. 



Prosopis communis, Smith, Bees Great Brit. 8 ; Entomol. 3. 



Schenck, Nass. Bien. 321. 

 Hvlseus communis, Nyland. Notts, ur Sallsk. pro Faun, et Flo. Fenn. 

 H. 234. 



Thorns. Opusc. Ent. 307 ; Hym. Scand. ii. 128. 

 Melitta annulata, Kirby, Mon. Apum Angl. ii. 36 (wee Linn?). 

 Hylaeus annulatus, Smith, Ent. Soc. Lond. iv. 29 j Zool. vi. 2202. 



Female. Length 2^-3 lines. — Black ; head and thorax finely and 

 very closely punctured ; the face has on each side of the clypeus 

 an oblong* angulated macula, touching the eyes, sometimes reduced 

 to a mere line. Thorax : an interrupted yellow line on the collar, 

 rarely obliterated ; the tubercles and a spot on the tegulae yellow, 

 that on the former sometimes obliterated, that on the latter rarely 

 so ; the posterior tibiae have a pale yellow ring at their base, and 

 the extreme base of the anterior and intermediate pairs sometimes 

 yellow. Abdomen ovate, smooth and shining. B.M. 



Male. Length 1|-2| lines. — Black ; punctured as in the female, the 

 thorax beneath coarsely so : the clypeus, a triangular shape above 

 it, and the face on each side as high as the insertion of the antennae 

 yellow ; the sides of the clypeus sometimes black ; in rare instances 

 a yellow line in front of the scape of the antennae ; the intermediate 

 and posterior tarsi at their base and also the posterior tibiae at their 

 base yellow. B.M. 



The typical specimen of P. annularis is preserved in the Linnaean 

 Cabinet, and differs from the present species in several particulars : 

 it has not yet been found in this country, but it may probably occur 

 in Scotland. 



The face of this species is more triangular than that of the other 

 species, and the yellow markings are of a deeper colour. 



This species is found in all parts of the kingdom ; its time of 

 appearance is usually the beginning of June. 



2. Prosopis dilatata. 



P. atra, fronte maculata, tibiis omnibus flavo annulatis. Mas ater, 

 tibiis flavis, nigro annulatis ; antennis scapo patelliformi. 



Prosopis dilatata, Nyland. Notts, ur Sallsk. pro Faun, et Flo. Fenn. i. 

 188. 



Smith, Bees Great Brit. 9, pi. i. fig. Id. 



Schenck, Nass. Bien. 318. 

 Melitta dilatata, Kirby, Mon. Apum Angl. ii. 39 <$ . 

 Melitta annularis, Kirby, lib. cit. 36 $ . 

 Hylaeus dilatatus, Curtis, Brit. Ent. viii. 273, tab. 273 <$ '. 



Smith, Trans. Ent. Soc. Lond. iv. 31, tab. 3. fig. 1 $ ; Zool. vi. 

 2204. fig. 4 ; Bees Great Brit. 9, pi. 1, Id <f . 



Thorns. Hym. Scand. ii. 132. 



