296 



2. M. Uneolata. 



Archimerus UneoJatus, H.-Scbf., Wanz. Ins. vi, 25, i\n. 581. 

 Mozena Uneolata, Sfel, Eoumerafcio Hemipt. i, 134, No. 4. 



Inhabits Arizona, California, and Mexico. 



In some of the less mature specimens, the apical joint is not fascous, 

 and the conuexivum lacks the blackish spots. 



3. ill. ohtusa. New sp. 



Form similar to that of M. Uneolata^ dark gTayish-luscous, or pale 

 brownish in less mature individuals. Head wrinkled, grayish pubescent, 

 a little granulated behind the eyes ; the cheeks anteriorly and the buc- 

 culse pale cinnamomeous ; antennae moderately slender, the basal joint 

 grayish i')ubescent, the second and third subequal, pale orange, the api- 

 cal joint fuscous ; rostrum reaching behind the anterior coxaj, iufus- 

 cated, the apex piceous. Pronotum i3unctured with fuscous, transversely 

 wrinkled, coated with grayish prostrate pubescence, the interspaces of 

 the rugte yellowish-brown ; lateral angle sublunately prominent, not 

 slenderly produced, barely curved forward, blunt, but subacumiuate on 

 the extreme tip ; transverse ridge near the base very distinct, the lat- 

 eral margins anterior to the prominent angles sinuated, and anterior to 

 this unevenly serrated. Scutellum coarsely, remotely punctured, yel- 

 lowish at tip. Corium dull fuscous, remotely punctured, wrinkled, the 

 disk a little sprinkled with whitish, and the subapex with a large uneven 

 whitish patch; membrane bronzed blackish. Legs reddish-brown, seri- 

 ceous pubescent ; the tarsi and tibi?e dark brown or piceous ; posterior 

 femora with a triple series of pale granules on the upper side, and with 

 a double series of short spines beneath ; tibi?e of the male stout, and a 

 little bent outward, on the inferior middle with a stout tooth, and beyond 

 this a series of smaller teeth extending to the tip, the tip obliquely trun- 

 cated, the ridges of the under side granulated. Venter minutely punc- 

 tured and rugulose, each side with a series of oblique, smooth, whitish 

 streaks ; connexivum with a square, pale spot at the base of each seg- 

 ment. Genital segment of the male indented each side near the tip. 

 Female with more slender, but bent, and subprismatic posterior tibite. 



Length, 17 to 19 millimeters. Width between the angles of i)ronotum, 

 6^ to 7 millimeters. Width at base of hemelytra, millimeters. Width 

 of abdomen, 7J millimeters. 



Inhabits Texas (G. W. Belirage); and collected in the region of the 

 Eio Pecos liiver, New Mexico, by Captain (now General) Pope. 



This species must approach the M. luridus, Dallas, of Honduras, but 

 it lacks the prominent and' acute lateral angles of the pronotum described 

 by him ; also, the angles are not iufuscated, and the sides of the abdo- 

 men are not black, but spotted. 



It is a neat and compact-looking little species, and serves to adorn 

 this Mexican and Central American group of Coreoids which overlap 

 our territory. 



XuTHUS, Stal. 

 X. auriculatus. 



Capaneus auricidaitifs, Stiil, Sfcettiner Eat. Zeit. xxiii, 290. 

 Xuthus auriculatus, Still, Eaumeratio Hemipt. i, 136. 



Inhabits Mexico, Texas, and New Mexico. 



One damaged specimen was examined by me in the collection brought 

 by Dr. Beiiandier from the vicinity of Matamoras, Mexico. 



This species exhibits a marked contrast to all others of the group in 

 the widely-produced sides of the pronotum, which are drawn out into 

 flattened and almost truncated square lobes. 



