6. HALICTUS. 99 



can be seen, except a few very fine ones at the extreme base of the 

 second segment. Schenck says the abdomen has a fine punctation, 

 and that JNTylander is mistaken in saying of the abdomen " absque 

 ulla punctura;" but that naturalist had seen the typical specimen, 

 and with myself had carefully examined it. Schenck's H. Icevis 

 must be a closely allied though different species. The locality given 

 by Mr. Kirby for the species is Nacton, in Suffolk, a village on the 

 Orwell, near Landguard Port. 



26. Halictus longulus. 



H. niger, pubescentia rufo-pallida, abdomine elongato-ovato. 



Hylictus longulus, Bees Great Brit. 39 $ j JEntomol. iv. 265. 

 Hyleeus longulus ; Schenck, Nass. Bien. 287. 



Female. Length 3^-4 lines. — Head very closely and finely punc- 

 tured, the clypeus coarsely so ; the flagellum fulvo-piceous beneath. 

 Thorax closely but not so finely punctured as the head, subopaque ; 

 the metathorax truncate, its base finely rugulose ; the wings hya- 

 line, the nervures pale testaceous, the tegulse rufo-testaceous ; the 

 legs with a pale fulvous pubescence, the tips of the claw-joints tes- 

 taceous, the calcaria pale testaceous. Abdomen elongate, one third 

 longer than the head and thorax, very delicately and closely punc- 

 tured, the base shining ; the margins of the segments depressed, 

 testaceous, and with a short pale downy pubescence ; the anal rima 

 fringed with fulvous pubescence ; beneath, the segments are fringed 

 with long pale pubescence. B.M. 



Male. Length 3 lines. — The antennae longer than the thorax, the 

 flagellum obscurely fulvous beneath ; the apex of the clypeus and a 

 spot in the middle of the mandibles pale yellow ; the head and 

 thorax closely and finely punctured, subopaque ; the metathorax 

 strongly rugulose and truncate ; the* truncations irregularly trans- 

 versely striated ; wings hyaline and iridescent, nervures and stigma 

 pale testaceous ; the base and apex of the tibiae and the tarsi pale 

 testaceous yellow. Abdomen oblong, smooth, and shining; the 

 apical margins of the two basal segments depressed • a little patch 

 of white pubescence at the basal margins of the second and third 

 segments laterally. B.M. 



The Isle of Wight is the only locality I know for this species : in, 

 August and September it is not uncommon at Bonchurch, Yentnor, 

 and Freshwater. The species resembles H. subfasciatus ; but the head 

 is rounder, the abdomen longer, and the thorax more strongly 

 punctured. The male is like that sex of H. Icevigatus ; but its 

 metathorax is more coarsely rugose, and it has a pale spot on the 

 mandibles. 



n2 



