NAUTES. 283 
almost gibbous, slightly rounded at the sides, the humeri rounded and not prominent, deeply striate, the 
strie finely and distantly punctured, the punctures rather coarser outwardly and indistinct towards the 
suture, the interstices rather convex throughout and almost smooth; legs slender, rather short, somewhat 
closely punctured ; anterior tarsi with the three basal joints equal in width, narrow, and very little wider 
in the male, the fourth joint small; beneath dark reddish-brown, shining, very sparingly and finely punc- 
tured, the ventral segments 1-3 shallowly longitudinally wrinkled and more closely punctured in the 
middle in the female, 1 and 2 flattened and very closely punctured and pubescent along the middle in the 
male, the flanks of the prothorax almost smooth; prosternum rather broad, horizontal, a little produced ; 
mesosternum short, V-shaped, not very deeply excavate, its narrowly raised sides vertical in front. Body 
winged. 
Length 33-5 millim.; breadth 24-3 millim. (¢ 9.) 
Hab. Panama, David and Caldera in Chiriqui (Champion). 
Numerous examples. This species will be identified by its small size, convex form, 
short and deeply striate elytra, rather convex interstices, very short thorax, the anterior 
angles of which are not prominent, short and very coarsely punctured head, &c. 
N. breviceps cannot be confounded with any other species recorded here, though in its 
short broad ovate form it superficially resembles V. varians; in general shape it some- 
what resembles Phedon, a genus of Chrysomelide. ‘The anterior tarsi are scarcely 
dilated in the male, the three basal joints comparatively narrow. 
9. Nautes striatipennis. (Tab. XII. fig. 13, ¢.) 
Oblong ovate, moderately convex, subparallel, brownish-bronze, the prothorax rather more golden in tint, not 
very shining. Head broad, very closely and rather coarsely punctured, the punctures here and there 
confluent, the epistoma large, broadly emarginate in front, and defined posteriorly by a shallow groove, a 
transverse space on the vertex impunctate; antenne long, nearly reaching to the middle of the elytra in 
the male, the outer joints long and not wider than the preceding, brownish or piceous; prothorax broad, 
transverse, the lateral margins reflexed and prominent but not grooved within, the sides slightly rounded 
and converging from a little before the base, the apex deeply emarginate, the anterior angles broadly 
produced and rounded, the base strongly bisinuate and shallowly margined, the hind angles subrect- 
angular, the basal fove shallow, the surface very closely and somewhat coarsely punctured, a narrow 
longitudinal space on the basal half of the disc impunctate; scutellum transverse, smooth; elytra. 
subparallel, rather long, deeply striate throughout, the strive indistinctly punctured, the interstices almost. 
flat and finely and sparingly punctured, the margins impunctate within; beneath more shining, greenish- 
bronze, rather closely and coarsely punctured, the flanks of the prothorax somewhat coarsely strigose, the. 
ventral segments 1 and 2 in the male very closely and finely punctured (but not distinctly pubescent) along 
the middle; prosternum horizontal, very strongly acuminately produced; mesosternum horizontal, 
V-shaped, very deeply concave within, its strongly raised sides quite vertical in front; legs stout, the 
tibie roughly and closely punctured ; tarsi stout, the three basal joints of the anterior pair in the male a 
little dilated. Body winged. 
Length 104-13 millim.; breadth 5-53 millim. (d.) 
Hab. Mexico (coll. Oberthiir), Tehuantepec (Sal/é). 
Two examples, both males. This distinct species will be known by its comparatively 
- elongate form, the very closely and somewhat coarsely punctured head and thorax, and 
the deeply striate elytra, the strie almost impunctate; in the structure of the pro- 
and mesosternum it agrees perfectly with the typical forms of Nautes. N. striatipennis 
cannot be satisfactorily compared with any other species here recorded. | 
200 2 
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