Vol. xxix") ENTOMOLOIIU Ai. .\K\vs I/I 



1. Second s. m. narrowed fully half above, first r. n. joining second 



s. m. much more than twice as far from base as second r. n. from 

 apex; mesothorax very smooth, without conspicuous punctin 



pic red Crawl". 



Second s. m. not thus narrowed above, first r. n. joining second s. 

 m. nearer base (especially in innuptns) ; mesothorax distinctly 

 punctured 2. 



2. Area of metathorax without a shiny rim; tegulae testaceous. 



iiuntptus Ckll. 



Area of metathorax with a shiny rim; tegulae reddish fuscous. 



nitcsccns Ckll. 

 Panurginus planatus sp. n. 



$ . Length about 6 mm. ; slender, black ; quadrate spot on labrum, 

 large spot at bast of mandibles, clypeus entirely, lateral face-marks 

 (pointed above at an angle of about 50 deg.), a lobe on inner side of 

 lateral marks (representing part of dog-ear marks) and lower part of 

 supraclypeal area (pointed above), all pale yellow; the yellow patch on 

 labrum is the process, which is broadly truncate, slightly emarginate, 

 with a submarginal row of black spots; pubescence scanty and pale: 

 antennae long, black; mesothorax polished, with strong punctures; 

 area of metathorax with strong plicae, more or less branching, hue 

 without a shining rim; knees broadly, tibiae at apex, anterior tibiae 

 in front, and the basitarsi, light yellow; tegulae rufopiceous: wings 

 dusky, nervures and stigma fuscous ; abdomen shining, sixth ventral 

 segment with a large median depression. 



Meadow Valley, Mexico, September (Townsend.) United 

 States National Museum. Related to P. concinnus Fox, but 

 especially to P. rudbeckiae Rob. The three are separated 

 thus: 



Flagellum pale testaceous beneath, .concinnus Fox (Lower California). 



Flagellum dark i. 



i. Clypeus with a strong median sulcus ..rudbeckiae Rob. (Illinois). 

 Clypeus without such a sulcus pinna tits Ckll. 



Membership in the Association of Economic Biologists. 



EDITOR. EXTOMOI.OC.K-.M. XI-AVS: I beg to inform you that at a recent 

 meeting of the Council of this Association it was decided to cancel 

 the rule limiting its membership to those of British nationality. As 

 foreign members will, therefore, have the same privileges as Britisli 

 ones, including the right to receive the sliinals nf .Implied /.V.'/ri/v for 

 the annual subscription of i. i. o. (which is sold to the public at 

 25 sh.), the fact may possibly be of some interest to readers of your 

 journal. S. A. NEAVK. Honorary Secretary. S<), (Jneen's Gate, Lon- 

 don, S. W. 7. 



