THE CANADIAN ENTOMOLOGIST. 9 



A NEW SPECIES OF CALISIUS. 



BY DR. E. BERGROTH, TURTOLA, FINLAND. 



Calisius annulicomis , n. sp. 



Ovatus (9), fuscus, pronoto fusco-nigro, scutello subtestaceo, 

 medio vittis duabus albis antrorsum leviter convergentibus, antice 

 arcuato-conjunctis, postice extrorsum curvatis et latera attingenti- 

 bus signato, inter has vittas et elevationem basalem nigram fusco- 

 conspurcato, carina media nigra, medio late albo-interrupta, 

 abdomine magna parte obscure rufescente, subtus latera versus 

 parce albo-granulato, antennis fuscis, articulo tertio (ima basi 

 excepta) flavo, articulo quarto nigro, pedibus sordide flavidis, 

 femoribus (ima basi et summo apice exceptis) fuscis. Caput 

 pronoto distincte brevius, antennis capiti subaeque longis, articulo 

 secundo primo crassiore et pauUo longiore, tertio secundo fere 

 dimidio longiore, quarto tertio sat multo longiore et crassiore. 

 Pronotum lateribus rectis, irregulariter nigro-spinulosis, medio vix 

 sinuatis insigne, lobo postico carinis sex instructo, duabus mediis 

 antrorsum leviter convergentibus, usque in lobum anticum ex- 

 tensis, carinis subsequentibus in parte basali levius, deinde fortiter 

 convergentibus et usque ad apicem carinarum mediarum extensis, 

 cum his angulum acutum formantibus, carinis extimis prope 

 marginem lateralem sitis. Carina media scutelli granulata. Margo 

 lateralis superior segmentorum connexivi granulis tribus per- 

 minutis, margo lateralis inferior granis tribus majoribus albis 

 instructi. Long. 9 4 mm. 



Tasmania (Launcestown, J. J. Walker). Mus. Brit. 



This remarkable species is by many characters very distinct 

 from C. interveniens Bergr., the only Australian species hitherto 

 known. 



THE NORTH AMERICAN SPECIES OF THE GENERA 

 ARTHROPEAS AND ARTHROCERAS. 



BY CHARLES W. JOHNSON, BOSTON, MASS. 



The species Arthropeas leptis Osten Sacken seems to be the 

 cause of some confusion in these two genera. This is probably due 

 to the comparative scarcity of material, to an oversight in Aldrich's 

 Catalogue, and to the fact that Osten Sacken in describing the 

 species and referring to a number of minor characters wherein it 

 differs from the typical Arthropeas failed to mention the most im- 

 portant feature — the absence of spurs on the anterior tibia?. This 

 character, however, he mentions in 1882 (Bed. Ent. Zeits., XXVI, 

 365), as follows: "In the notes to my Catal. N. Am. Dipt., 1878 

 (p. 223), an insect is described which I referred provisionally to the 

 genus Arthropeas. It has the body of a Leptid (Symphoromyia), 

 with the antenna? of a Coenomyia. It will probably form a new 



January, 1913 



