Insects. 2173 



Sp. 24. Halictus quadeinotatus. 

 Melitta quadrinotata, Kirby. 



Female. — (Length 3 — 3f lines). Black; a few scattered ochraceous 

 hairs on the face. Thorax rather deeply punctured ; metathorax ro- 

 tundate ; tegulae nigro-piceous ; the wings subhyaline ; the nervures 

 testaceous ; the pubescence on the legs is cinereous, but fulvous on 

 the tarsi beneath. Abdomen ovate, shining, evenly but delicately 

 punctured ; at the basal margin of the second and third segments, la- 

 terally, is a small patch of white pubescence ; the apical segments are 

 clothed with a short whitish down or pile ; the incision at the apex 

 fulvous. 



Male. — (Length 2j — 3 lines). Black; the antennae not quite so 

 long as the head and thorax ; the face has a little short hoary pu- 

 bescence ; the nose at the apex, and the labrum, white. Thorax 

 closely punctured ; the metathorax rotundate ; the wings hyaline and 

 iridescent ; the tibiae at their base and apex, and all the tarsi, pale 

 luteous ; the apical joint ferruginous. 



This species, although somew 7 hatlike the preceding, is very distinct : 

 in the female the most striking difference is, that the four white spots 

 on the abdomen are placed on the basal margins of the segments ; 

 whereas, in the former species the eight spots are on the apical mar- 

 gins. This little bee is not at all uncommon. I have seen specimens 

 captured in Scotland, Wales and the Isle of Wight. 



Sp. 25. Halictus xanthopus. 



Melitta xanthopus, Kirby. Not Andrena fodiens, Latr. Lasio- 



glossum tricingulum, Curtis. 



Female.— (Length 5 — 6 lines). Black ; a little pale pubescence at 

 the base of the antennae ; the clypeus produced, coarsely punctured ; 

 the mandibles ferruginous at their tips, somewhat forcipate. Thorax 

 clothed with ferruginous pubescence, most sparing on the disk, which 

 is strongly and closely punctured ; metathorax rotundate posteriorly ; 

 the tegulae piceous ; the wings subhyaline, slightly clouded at their 

 apical margins ; nervures testaceous ; the legs have a rufo-fulvous pu- 

 bescence ; the posterior tibiae and tarsi, the intermediate tarsi, and 

 apical joints of the anterior, rufo-testaceous. Abdomen ovate, shin- 

 ing, closely and delicately punctured ; a little fulvous pubescence at 

 the sides of the basal segment ; on the basal margin of the second, 

 VI 2 F 



