EMMENASTUS., 15 
common in Guatemala, and found by beating herbage &c., and sometimes coming to 
light at night. 
18. Emmenastus confusus. 
Weed, oblong ovate, convex, dark reddish brown or black, shining. Head coarsely and somewhat closely 
punctured ; prothorax transverse, convex, widest behind, rounded at the sides and narrowed in front, the 
anterior angles rather obtuse and scarcely prominent, hind angles rectangular, the base bisinuate, a narrow, 
deep transverse triangular fovea (sharply defined outwardly) on each side about the middle just within 
the raised basal margin, somewhat coarsely closely and regularly punctured, the punctures finer and more 
scattered on the disc towards the base and sometimes a little confluent at the sides; elytra the width 
of the thorax at the base, convex, a little rounded at the sides, with rows of punctures (coarse at the 
sides, finer and closer towards the suture) distinct to the apex, interstices flat with rather regular rows of 
punctures almost as coarse as those of the strize towards the suture and sparingly irregularly and very 
finely punctured at the sides; legs and antenne reddish brown; mandibles sharply toothed above. 
Length 6-7 millim. 
Hab. GuateMaLa, Zapote, Coatepeque, Capetillo, El Tumbador (Champion). 
Allied to EL. foveicollis, but less convex, a little flatter above, the elytra differently 
punctured ; it may be known from both E. foveicollis and E. levicollis by its narrower 
and more transverse thoracic basal foveee. Found by beating herbage. 
19. Emmenastus levicollis. 
Winged, oblong ovate, very convex, dark reddish brown or black, shining. Head coarsely but sparingly 
punctured; prothorax convex, transverse, widest at the base, the sides rounded and narrowed in front, 
anterior angles obtuse and scarcely prominent, hind angles distinct and rectangular, the base bisinuate, a 
deep triangular fovea (sharply defined outwardly) on each side about the middle just within the raised 
basal margin, the base between the fovese with a central shallow transverse impression, with scattered 
rather coarse punctures, the disc more sparingly and finely punctured and almost smooth towards the 
base, sides with larger coarser punctures which are rarely confluent; elytra convex, about as wide as the 
thorax at the base, slightly rounded at the sides, with rows’ of coarse punctures distinct to the apex, the 
interstices flat and sparingly and very finely punctured; legs and antenne reddish brown; mandibles 
toothed above; intercoxal process pointed in front. . 
Length 5-64 millim. 
Hab. Panama, Tolé, Volcan de Chiriqui, Caldera, Pefia blanca (Champion). 
Closely allied to E. foveicollis, but with the thorax and the interstices of the elytra 
smoother and more sparingly and finely punctured; the thorax less convex, broader 
behind, and less strongly rounded at the sides. On herbage. 
Sect. 2. Apterous Species. 
20. Emmenastus mancus. 
Apterous, oblong ovate, moderately convex, dark reddish brown or black, rather dull. Head coarsely and 
closely punctured; prothorax transverse, convex, widest behind before the base, narrowed in front, the 
anterior angles a little prominent, hind angles rectangular, closely subequally and rather coarsely punc- 
tured, the punctures a little confluent at the sides, base bisinuate, the disc slightly impressed near 
