HYPORHAGUS. 
Upper surface more or less shining. 
Mesosternum broadly and shallowly arcuate-emarginate in front. 
Form ovate or oblong ovate, moderately convex. 
473 
Elytral strize feebly costate laterally yucatanus. 
Elytral strize not costate laterally . . . . « bevepunctatus. 
Form short ovate, very convex; elytral striz almost obli- 
terated on the disc from a little before the middle, coarsely 
punctured at the base toe ee ee ee). Obliteratus. 
Mesosternum very deeply and semicircularly emarginate in front. emarginatus. 
1. Hyporhagus costulatus. 
Hyporhagus costulatus, Thoms. Monogr. in Ann. Soc. Ent. Fr. 1860, p. 34, t. 8. fig. 12°. 
Hab. Muxico, Yucatan (coll. Mniszech '). 
Unknown to me. 
2. Hyporhagus opuntiz. (Tab. XXI. fig. 22.) 
Hyporhagus opuntie, Horn, Trans. Am. Ent. Soe. iv. p. 149°. 
Hab. Norra America, Arizona 1.—Mextico, Northern Sonora (Morrison). 
Twelve examples have been sent to us by the late Mr. Morrison ; these vary from 
42-64 millim. in length. 
8. Hyporhagus gilensis. 
Hyporhagus gilensis, Horn, Trans, Am. Ent. Soc. iv. p. 149°. 
Hab. Norru America, Arizona}. 
This species is recorded from south of the Gila River, from just within our northern 
boundary. 
4. Hyporhagus durangoensis, (Tab. XXI. fig. 23.) 
Oblong ovate, black, subopaque, the head, the prothorax anteriorly and laterally (broadly but indeterminately), 
the margins of the elytra (indistinctly), and the under surface, legs, and antennee, obscure rufous. Head 
very finely and densely punctured, behind the eyes much more coarsely so; prothorax transverse, the sides 
rapidly converging from the base and a little rounded anteriorly, the surface thickly and rather coarsely 
punctured (more coarsely so than the anterior part of the head), the punctures here and there longitudinally 
confluent towards the sides, the latter only very shallowly impressed within the moderately prominent 
lateral margins ; elytra rather narrowly margined, with fine, shallow, sharply-cut strie, the strie all 
distinct (the two inner ones on each side of the suture shallower than the others) and with fine shallow 
closely placed punctures, the interstices sparsely, very shallowly, and minutely punctured, the punctures 
closer and more distinct at the extreme base, the disc a little more shining than the rest of the surface ; 
beneath very sparsely and minutely punctured, the metasternum at the sides rather coarsely and irre- 
gularly punctured and wrinkled; mesosternum broadly and shallowly arcuate-emarginate in front. 
Length 42 millim.; breadth 23 millim. (@.) 
Hab. Muxtco, Ventanas in Durango (Hoge). 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1888. 
3 PP 
