British Hymenoptera. 217 



18. Halictus puncticollis, E. Saund. 



E. Saund., Ent. Mo. Mag. xv., p. 'iOO =■ imncticollis, 

 Mor. ? 



Very like the preceding, but slightly larger. The $ 

 with the face longer and narrower ; the antennge entirely 

 black. Thorax less shining and more closely punctured ; 

 metathorax much more rugose, its basal area distinctly 

 enclosed. Abdomen much as in villosulus ; (for genitalia 

 see pi. ix., fig. 7.) 



? with the face rather longer than that of villosulus ; 

 the thorax with much larger, more rugose, punctures, 

 which, instead of being distant from each other about 

 the width of three or foar punctures, are scarcely distant 

 more than two ; metathorax clathrately rugose, basal 

 area bounded by a raised line. Abdomen much like 

 that of villosulus, but with only the margins of the 

 3rd and following segments testaceous. Length 8 — 

 Sj mm. 



Hab. Hastings and Guestling. 



19. Halictus Icevis, Kirby. 



Kirby, Mon. Ap. Angl. ii., p. 65 ; Smith, Cat. Brit. 

 Hym., 2nd ed., p. 98. 



Of this species I believe there are only two or three 

 recorded British specimens, all of which are females. 



It may be readily known by its large impunctate, or 

 nearly impunctate, abdomen ; the metathorax is formed 

 very like that of villosulus, and the puncturation of the 

 thorax is rather closer than in that species ; the tarsi 

 also are testaceous ; it is a decidedly larger insect than 

 villosulus. Length 8j mm. 



Hab. The only recorded locality is that given by 

 Kirby — Nacton, Suffolk. 



I cannot agree with Smith in thinking that Schenck's 

 IcBvis is different. Smith owns that there are a few very 

 fine punctures at the extreme base of the 2nd segment, 

 and Schenck only says that Nylander was wrong in say- 

 ing of the abdomen "absque ulla punctura " ; his de- 

 scription agrees excellently with our insect in all other 

 respects. Smith quotes Thomson's Icevis as identical 

 with Kirby's ; but here again, I think, he is mistaken, as 



TRANS. ENT. SOC. 1882. PART II. (jULY.) 2 F 



