2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. R.S 



•jolia, and there is only a small infusion of oriental types from the 

 south. 



From other parts of temperate Asia the Halictus- fauna, is very 

 imperfectly known, so it is not surprisin"^ that most of the species 

 collected in the Maritime Province appear to be new. The remark- 

 able n. dyhoiosJdi Radoszkowski, described from the region of the 

 Amur, was also obtained by me and I have referred it to a new genus 

 Acanthalichis, along with a closely related new species {A. grisei- 

 pennis Cockerell). H. denticoJUs Morawitz, from Eastern Siberia, I 

 did not find. H. monstri-ficus Morawitz, from Siberia, is said by 

 both Alfken and Bliithgen to be H. sextrigatus Schenck. TI. ruft- 

 tarsis Zetterstedt, which Strand records as collected by Eschscholtz 

 in Kamtchatka, was not recognized in the Maritime Province, nor 

 could I identify any of my specimens with the species described by 

 Strand from Tsingtau, in China. 



Of the 128 European species, I possess only 54, and these have all 

 been carefully compared with the Siberian material. It is, of course, 

 possible that among the species I have not seen and could not prop- 

 erly interpret from the descriptions alone there may be some of those 

 here described as new, but I think it is unlikely. The very wide- 

 spread species are, as a rule, the better-known ones, although it occa- 

 sionally happens that a rare and little-known form will turn up in 

 very remote localities. It is very likely that some of the species 

 now described will be found in Sakhalin Island or northern Japan, 

 but I can not identify any of them with known Japanese species. 



The present report does not deal with the subgenera Seladonia and 

 Chloralictus^ but it is worth while to note that I found only one 

 Chloralictus^ the new H. mayacensis Cockerell from Low Light- 

 house, and two species of Seladonia^ the European H. tuniulorum 

 linnaeus and the new II. cruditus Cockerell. 



HALICTUS MOLTRECHTI. new species 



Female. — ^Length about 7.5 mm., anterior wing 6 mm.; black, 

 shining, rather robust, with scanty pubescence; head broad, about 

 circular seen from in front, face and occiput with thin pale hair; 

 clypeus produced, polished, with well-separated strong punctures; 

 supraclypeal area entirely different, with minute punctures; front 

 dull above, but shining along the sides and near the antennae; 

 antennae entirely black; cheeks rounded, not enlarged; mesothorax 

 and scutellum shining, well and distinctly punctured ; scutellum with 

 a median groove; hair of thorax scanty, tinged with brownish, 

 fringe on tubercles comparatively short (a point of distinction from 

 H. calceatus Scopoli) ; area of metathorax with distinct but irregular 

 (wavy and bent) longitudinal rugae; the posterior limit of area 



