THE CERCOPIDJ': 147 



Clastoptcm lincaticolUs var. hrunnca n. var. 



Smaller and less definitely marked than dclicata. Smaller than 

 typical lineaticollis with less of a smoky and more of a bronzy cast, 

 the lines and markings present, but obscure ; face shining black. 



Described from four examples from Alder and Rifle, Colorado, 

 collected by the writer. The smaller size and shining black face will 

 at once distinguish this variety from its lineate relatives. 



Enocomia n. gen. 



Broad short species superficially resembling, but not closely re- 

 lated to, Clastoptcra. Resembling Philaronia in venation, but with 

 a much shorter head and pronotum and a single spine on the. posterior 

 tibia. 



Vertex very short, obtusely angled, disc sloping, ocelli almost 

 equidistant from each other and the eyes. Front broadly transversely 

 oval, the median third slightly longitudinally depressed. Pronotum 

 very broad and short, anterior disc sloping, posterior disc horizontal, 

 anterior margin more strongly produced than in Philaronia. Scutei- 

 lum large, transversely convex, especially on the long acute apex. 

 Elytra broadly oval as in Clastoptcra, but not folded posteriorly, 

 coriaceous and with the venation obscure on the disc as in Philaronia. 

 Venation slightly irregular, variable, the outer anteapical cell broad, 

 mner one long, acuminate anteriorly, apical veins slightly curved, 

 prominent, several irregular supernumerary veins between the outer 

 anteapical and the costa. Venation of under wing as in Philcenus 

 except that the third vein is forked back of the cross nervure. 

 Posterior tibia with a single stout spine. 



Type of the genus Enocomia auipliata n. sp. 



This genus, which superficially resembles Clastoptcra, appears to 

 have affinities in venation and structure with both Tomaspis and 

 Philaronia. It probably represents a group developed in the West 

 Indian region. 



Enocomia ampliata n. sp. (Figure 39, Fig. 1.) 



Superficially resembling Philaronia ahjccta var. provana, but much 

 broader, almost as broad as in a Tomaspis. Length 7 mm., width 

 3 mm. 



Vertex nearly twice wider than its median length, distinctly 

 shorter than the pronotum, disc almost flat, strongly inclined ; face 

 straight in profile, line extended touching costa. Pronotum with 



