MCNEILL REVISION OF THE TRUXALIN.'E OF NORTH AMERICA. 227 



A. 2 Median carina of the pronotum cut much behind the middle. 

 Dorsum of the abdomen reddish orange.. 2. — Ai/rivc/ifris, Bruner. 



I. Amblvtropidia occidentalis, Sauss. Fig. 13a, 13b. 



Sfe//(>d()f/irus occ/(/e'/i/a/is, Sanss., 1861. Orth. Nov. Am. , Ser. 11, 19. 



Stenobothrus occidentalis, Walk., 1870. Cat. Derm. Salt., IV, 755. 



Amblytropidia sHbhyalina,?iQvA., 1875. Cent. Orth., 23. 



Ainblytropidia subhyali/ia, Scud., 1877. Ent. Notes, VI, 29. 



Amblytropidia siibhyalina, Bruner, 1883. 3rd Rept. Ent. Com., 58. 



Ainblyf7vpidia subhvalina, Schufeldt, 1884. Proc. U. S. Nat. Mus., 

 VII, 332. 



Chlocaltis {Aiitblyfropidia) sitbliyaliua, Provancher, 1877. Faune En- 

 tom. du Can., 44. 



Hab. The Gulf States of the United States north of Tennessee 

 and Georgia and west to Colorado and Arizona. Abbe Provancher 

 implies that a specimen of this species in his collection was found in 

 Canada. Its occurrence there seems improbable. 



2. Amislvi'roimdla auriventris, liruner. 

 Amblytropidia auriventris, Bruner. 

 Hab. Orizaba, Mexico. 



XIV. CHLOEALTIS, Harr. Fig. 14. 



Vertex triangular, a little declivent, not extending in front of the 

 eyes as much as the distance between the eyes, convex, more or less 

 sulcate, with the lateral carin^e little elevated and the median carina 

 slight but never entirely wanting. The lateral foveolas are wanting. 

 The frontal costa is more or less rounded above the ocellus, ])lain or 

 very faintly sulcate below with the sides sub-parallel. The antennae 

 are decidedly flattened at the base and much longer than the head and 

 pronotum together, in the male as long as the hind femora. The face 

 seen from the side is nearly straight. The pronotum has the disk 

 plain with the three carinse equally distinct and cut much behind the 

 middle with the last transverse sulcus. The lateral carinae are plainly 

 (male) or strongly (female) curved. The posterior margin of the meta- 

 zone is straight or gently curved, not angulate. The lateral lobes of 

 pronotum are longer than high, with the anterior and posterior mar- 

 gins straight and strongly and equally oblique, and with the lower 

 margins horizontal or slightly descending posteriorly, more decidedly 



