210 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



bases of anterior femora and apices of hind tibiae black, not brownish 

 black. 



Female. — Length 10 mm. The female differs from rohusta (Kirby) 

 in the following characters: postocellar area slightly wider poste- 

 riorly than the cephal-caudad length (in rohusta the posterior width 

 is about twice as wide as the cephal-caudad length); posterior and 

 superior orbits more closely punctured; wings and stigma darker 

 apically. 



Newington, Fairfax County, Virginia, four June 4, 1911, three May 

 30, 1911 (S. A. Eohwer). Glencarlyn, Virginia, one female May 31, 

 1911 (S. A. Rohwer). This species in the adult is very sluggish. It 

 flies around Ce'phalanihus just as the flowers are beginning to form. 



In couplet 1, on page 403, Proc. U. S. Nat. Mus., vol. 41, No. 1866, 

 1911, the last ''second" should read "third." 



Genus XENAPATES Kirby. 



Syn. Probleta Konow. 



Belongs to Allantinae, tribe Taxonini. 



Cameron and Kirby, in describing the type of Xenapates (Dineura ? 

 africana Cskiaeron), erroneously say that the anal cell of the fore wings 

 is petiolate and that the genus is related to Blennocampa. An exami- 

 nation of the type proved that the anal cell of the fore wings is the same 

 as (Monophadnus) AUantidea lengalensis (('ameron), which was placed 

 by Kirby in Eriocampa; that is, the anal cell is of the normal type 

 found in the Allantinse, but the second anal is not so constricted 

 basally. The Tenihredo incerta Cameron belongs to Xenapates. This 

 last-mentioned species has been placed in Probleta by Konow and 

 certainly agrees -with his generic description. The type of Prohleta i 

 has not been studied, but judging from the description and the 

 inclusion of incerta (Cameron), it is synonymous with Xenapates. 



A male of Xenapates incerta (Cameron) has been taken at Buxar 

 Duars, Bengal, India, May, 1907, by D. Nowrojee. 



Subfainily TEISTTHREDIIsmS^^E. 



Genus SIOBLA Cameron. 



Syn. Encarsioneura Konow. 



This genus belongs to the tribe Tenthredinini, where it is related 

 to Lagium and Sciapteryx. The type of Siohla mooreana Cameron is 

 in the British Museum. I have examined it and find it congeneric 

 with Tenihredo sturmi Klug. I therefore consider Encarsioneura 

 Konow to.be the same as Siohla Cameron. 



1 The type of Probleta is Probleta collariatus Konow, the genus being monobasic and havingbeen described 

 on p. 86, and not p. 161, Zeitschr. Syst. Hym. Dipt., vol. 8, 1908. 



