94 E. T. CRESSON. 



Stelis ? monticola. — 9- — Robust, black, sparsely punctured, shining, 

 head and thorax rather thinly clothed with a pale pubescence, which is 

 thick on the face; mesothorax longitudinally impressed on the disk; apex 

 of scutellum depressed; middle tibiae prominently bispinose at tip above; 

 wings as in subccerulea ; abdomen short, subglobose, shining; a narrow white 

 band on segments 1 — 4, very slightly interrupted on the disk and broadly 

 suberaarginate on the sides posteriorly; fifth segment with two approximate 

 transverse white spots. Length .30 inch. 



ILfb. — Colorado, (Ridiugs). One specimen. Very much like sub- 

 csei-ulea, but without any of the blue color so conspicuous in that 

 species. 



Coelioxoicles (n. g.) punctipennis. — 9- — Black, shining; head as 

 wide as thorax, with coarse sparse punctures, vertex grooved on each side 

 behind antennse; eyes large, elongate, nude; ocelli placed in a curved line; 

 face short, clypeus truncate at tip, prominent; labrum large, quadrate; mandi- 

 bles acute at tip, cheeks flat, carinate on posterior margin; face and clypeus 

 except a transverse black mark on middle, line on anterior orbits curving in- 

 ward behind antennae, and line on posterior orbits composed of dense appressed 

 silvery white pubescence; antennse slender, filiform, second and third joints 

 dull ferruginous; mesothorax deeply impressed on the disk and on each side, 

 and with scattered large deep punctures, scutellum large, square, and perfectly 

 flat, opaque black, with a small obtuse black tubercle on each side at base; 

 pleura convex and coarsely punctured on the sides, flat and smooth beneath ; 

 a narrow line on posterior margin of prothorax, line on middle of mesothorax 

 another over tegulse, spot on each side of scutellum and line at tip, spots on 

 pleura, and spot on each side of metathorax at extreme tip, over posterior 

 coxEe, composed of short dense snow-white pubescence; pleura tinged with 

 ferruginous beneath; tegulje dull testaceous; wings 

 fuscous, with a purplish reflection, a subhyaline 

 band before apex and a round hyaline spot at tip 

 of marginal cell; neuration as in accompanying 

 cut; legs robust, dull ferruginous, varied with fus- 

 cous and with patches of short dense white pubescence; })osterior trochanters 

 obtusely lobed beneath, tibiae short, rather suddenly narrowed at base, the 

 two posterior pair acute at tip, spurs short; tarsi slender, the basal joint long, 

 ungues robust, simple; abdomen narrow, acutely conical, elevated and re- 

 curved at tip, the last ventral seguient prolonged much as in Osiris; dorsal 

 surface smooth, impunctured, depressed at base, polished and convex at the 

 acutely pointed tip, segments 1 — 4 narrowly fringed at apex with short snow- 

 white pubescence; venter convex, shining, varied with ferruginous, entirely 

 nude except a patch of short dense black pubescence on first segment and two 

 spots of the same on apical middle of second and third segments. Length of 

 head and thorax .22 inch ; of abdomen .30 inch. 



Hab. — Mexico, (Sumichrast). Two specimens. This curious insect 

 has at first sight much the form of a narrow attenuated Goelioxys^ 

 but is widely distinct, as will appear from the characters given above. 

 The apex of the abdomen is stylated as in Osiris 9 , but the neuration 

 of anterior wings is different from anything known to me. 



