NO. 1866. NEW SAWFLIE8 IN U. 8. NATIONAL MUSEUM— BOHWER. 407 



The complete loss of the transverse radius in all the specimens may 



indicate an abnormal development or if constant in a large series 



together with the elevated scutellum might constitute characters for 



a subgenus. 



Genus ALLANTUS Panzer. 



Emphytus Klug. 



The genus Allantus, a monobasic genus, was established by Panzer 

 in 1801 ^ and has Tenthredo (Allantus) togata Panzer as the type. It 

 therefore replaces Empliytus Klug. 1813. Allantus Auctorum equals 

 Tenthredo Linnaeus. ^ 



Key to Nearctic and other species of Allantus. 



Posterior femora red or reddish 1 



Posterior femora black 2 



1. Four anterior femora pale mellipes (Norton). 



Four anterior femora blackish gillettei (MacGillivray). 



2. Posterior tibiae black and white cinctus nigritibialis Rohwer. 



Posterior tibiae red and white 3 



3. Sheath sharply truncate; furrows bounding the postocellar area, joining the posto- 



cellar furrow in middle of the lateral ocelli cinctus cinctus (Linnaeus). 



Sheath rounded below ; furrows bounding the postocellar area joining the postocellar 

 furrow well outside the lateral ocelli cinctus cinctipes (Norton). 



A. mellipes (Norton) seems to be close to A. cingillum (Klug.). 



ALLANTUS CINCTUS NIGRITIBIALIS, new subspecies. 



Female. — Length 7.5 mm. Closest to cinctus cinctipes (Norton), 

 but may ])e separated by the above table. 



•7 



Fig. 14.— Figukes of the apices of the sheaths of species of Allantus. o, 6, of A. 



CINCTUS CINCTIPES (NORTON); C, d, OF A. CINCTUS NIGRITIBIALIS ROHWEE; C IS FROM THE 

 SPECIMEN FROM JaPAN; d, OF THE SPECIMEN FROM CHINA; e, OF A. GILLETTEI (MAC 

 GlLLFVEAY); /, OF A. CINCTUS CINCTUS (LlNN.a)US); Q, OF A. MELLIPES (NORTON). 



One female "crawling on Hemlocks, from Japan" collected by 

 J. B. Smith at Rutherford, New Jersey, April 15, 1911. One female 

 from Hong Kong, China, collected by A. Koebele. 



Type.—Csii. No. 13980, U.S.N.M. 



1 Fauna Insect German, vol. 11, p. 32, pi. 12. 



» Ent. News, vol. 22, 1911, p. 218; Bull. Tech. Ser. No. 20, pt. 2, Bureau of Entomology, 1911; Proc. U. S. 

 Nat. Mus., vol. 39, No. 1777, 1911, p. 117. 



