ENCOPTOLOPHUS. 141 



tibiae are deep greyish-blue, while in E. sordidus they are fuscous and with a sub-basal pale annulus, and 

 the median fuliginous band of the tegmina is oblique, not transverse, as in E. sordidus. 

 Length of body, tf IV, $ 24; of pronotum, J 36, $ 5; of tegmina, <3 13-5, $ 20; of hind femora, cJ 10, 

 2 13-5 millim. 



Hab. Noeth America, Bozeman, Montana (JR. A. Cooley). 



Although JS. rnontanus is not likely to be found in Mexico, the fact that it is sub- 

 alpine in its habitat suggests its rather close relationship to the following two species.] 



6. Encoptolophus fuliginosus, sp. n. 



General colour rather dark smoky-brown, with darker markings on the sides of the pronotum, the tegmina, 

 and hind femora, the lighter portions sometimes largely green, as in E. rnontanus, which is about the 

 same size. Compared with that insect, the present species has decidedly well-defined dark sides to the 

 pronotum (while in E. rnontanus this infuscation is scarcely noticeable), the hind femora are more 

 strongly banded externally, the hind tibiae are leaden-brown (instead of decidedly blue), and the banding 

 of the tegmina is inconspicuous. 



Structurally E. fuliginosus is rather more slender than E. rnontanus ; the pronotum is a little longer and less 

 strangulate in advance of the principal sulcus, the hind lobe of the disc is longer, the apex is more acute 

 (being right-angled, rather than obtuse), and the sides are much more smooth and shiny; the hind femora 

 are longer and more strongly carinate ; and the head is narrower, with the median costa of the face less 

 broad and more deeply sulcate. 



Length of body, S 18, $ 27; of pronotum, 6 3-85, $ 5*1; of tegmina, <S 15, $20; of hind femora, 

 6 10-5, $ 14-25 millim. 



Hab. Mexico, Colonia Garcia, Chihuahua (C. H. T. Townsend). 



A large series of both sexes. Judging from the number of specimens at hand, the 

 present species must be very common, possibly abundant, and may even be destructive 

 to vegetation. 



7. Encoptolophus herbaceus, sp. n. (Tab. II. fig. 13, $ .) 



Size small, the body compressed, moderately slender. Head no broader than the front edge of the pronotum, 

 its vertex somewhat narrower than in any of the preceding species, the sulcus decidedly elongate, acumi- 

 nate in front, to a much greater extent in the <5 than in the § , the posterior extremity provided with 

 a strong median carina that fades away on the occiput ; lateral foveolae equilaterally triangular, but 

 gently sulcate ; frontal costa moderately prominent, the sides gently divergent below, shallowly sulcate • 

 antennae short and rather heavy, especially so apically, in the $ about reaching the posterior sulcus, in 

 the S extending to the hind edge of the pronotum. Pronotum with the sides nearly parallel on the 

 anterior lobe, divergent behind ; lateral carina? almost equally prominent throughout, straight, about one- 

 third nearer together in front than behind ; median carina rather coarse and moderately prominent, cut 

 considerably in advance of its middle by the principal sulcus ; hind margin almost a right angle ( 5 ), or 

 somewhat acute (c? ). Tegmina in the $ reaching the tip of the abdomen, in the c? extending about 

 one-fourth their length beyond it. Hind femora rather compressed, not quite reaching the apex of the 

 abdomen in either sex. 



General colour of the head, the pronotum, the sides of the meso- and metathorax, the external face of the hind 

 femora, and the tegmina green (?) or pale testaceous ( d" ). Sides of the head back of the eyes and the 

 anterior part of the upper edge of the sides of the pronotum, together with a quadrate patch in the 

 middle of the latter, dark piceous. Hind femora marked above with one conspicuous, and one or two 

 smaller, oblique patches of black, and on the lower half of the outer face by two rather narrow very oblique 

 dashes of the same colour. Tegmina provided with the usual fuscous bars, the middle one large and 



