MCNEILL REVISION OF THE TRUXALINiE OF NORTH AMERICA. 223 



? Syrbi/la motitezuina, Townsend, 1893. Ins. Life, VI, 31. 



Hab. United States east of the Rocky Mountains, extending as 

 far north as Nebraska and Northern Illinois and on the Atlantic coast 

 to Maryland. If the species determined by Bruner and reported by 

 Townsend is admirabilis , it is also found between the Rocky and the 

 Sierra Nevada Mountains. The United States Museum contains 

 numerous specimens from Illinois, Missouri, Arkansas, Texas, and 

 Georgia. 



3. SvRBULA ACUTicoRNis, Bruner. Fig. 10, lob. 



Syrhiila acuticoriiis, Bruner, 1889. Proc. U. S. Nat. Mus., XII, 55. 



Hab. Southwestern Texas (Bruner) ; Fort Grant, Arizona. The 

 National Museum contains several specimens (males) from the last- 

 mentioned locality which have been doubtfully referred to 6'. fusca- 

 vittata, Thos. They do not fit Thomas' description of that species, 

 however, in having the lateral lolies of the j^ronotum not smooth be- 

 hind the principal sulcus, but punctate. I think there is little doubt 

 but the si)ecimens in question belong to Bruner' s species. The Na- 

 tional Museum also contains two of Bruner's types (females). 



4. SyRHULA FUSCA-VITTATA, Thos. 



Syrbula fusca-vittata, Thos., 1875. Rept. Geol. and Geog. Surv. 

 W. TOO Mer., V, Zool., 870, pi. xlv, fig. 7. 



Hab. Lower Arizona (Thomas). 



I am not acquainted with this species ; it may be that it is identical 

 with Bruner's act/licor/iis. 



XI. AMPHITORNUS, n. gen. Fig. 11. 



Vertex a little declivent, advanced in front of the eyes less than 

 half the distance between the eyes, convex, with slight sulci on either 

 side of the median carina. Lateral carina are scarcely at all per- 

 ceptible. Tempora rather broad, not at all foveolate, and no more 

 clearly separated from the vertex than from the front. Frontal costa 

 rather broad, not sulcate, barely depressed at the ocellus with the mar- 

 gins very moderately divergent below. The antennae are distinctly 

 shorter (female) or not longer (male) than the head and pronotum, 

 flattened in both sexes, more or less acuminate in the female, linear in 

 the male. Pronotum with the disk well rounded and the lateral cari- 

 nse, if present at all, extremely faint and not interfering at all with 



