UHLER ON INSECTS. 371 



laud, once near Baltimore in a loamy valley, beneath decaying wood, 

 on the 18th of March. More than one-half of the specimens which have 

 passed through my hands have been destitute of the forked tooth 

 beneath the anterior femora. Those which possessed it have all been 

 females. 



This very novel form of HemiiJtera deserves further notice. Almost 

 nothing is known of its habits, and not enough of them in any of their 

 stages have yet been collected to determine the meaning of their singu- 

 lar and elaborate structure. 



2. A, pusiUus. 



Jmnestus 2)nsiUus Uliler, Ball. U. S. Geol. Surv., 2(1 ser., vol, ii, No. v, p. 12. 



This a small, pale, species, often common in many parts of the 

 Atlantic region. In the Black Mountain range of North Carolina, and 

 in Tennessee, it has been met with in large numbers. It seems to be 

 less convex above than the preceding species, and more uniformly punc- 

 tured, and no specimens have yet beeu seen to have the forked tooth on 

 the anterior femora. 



Trichocoris Uhler. 



Oval, convex, hirsute, very convex beneath. Head bluntly semicir 

 cular, deeply seated, the anterior angles of the pronotum protracted to 

 the middle of the eyes. Eyes sunk to the middle in the margin of the 

 head ; the ocelli placed near to them and on a line with their base. 

 Clypeal submargin with erect, bluntteeth ; the tylus broad, flat, defined 

 almost to the base of the cranium : the lateral lobes longer. Eostrum 

 reaching behind the anterior coxie ; the basal joint as long as the head 

 inclosed by the bucculfe ; the bucculfe gently arched, a little wider 

 than the rostrum, and extending almost to the base of -the head ', the 

 second joint longest, a little bent, arched, and compressed; the third a 

 little longer than the fourth. Prosternum raised, broadly scooped out, 

 the sides with prominent, lunate, obliquely placed lobes, which almost 

 inclose the base of the antenme. Xyphus of the metasternum triangu- 

 lar, acute at tip, sunken in the middle. Ostiolar canal rather flat, 

 placed close to the suture between the meso- and meta-stethium, run- 

 ning outward more than half the length of the episternum, slenderly 

 sulcated on its posterior margin, slightly tubular at the outer end; the 

 plate on which it is set is narrow, acutely triangular beyond the ostiole. 

 Scutellum about two-thirds of the length of the abdomen, broad and 

 longer than broad, wide, blunt, and not obviously contracted at tip, re- 

 motely bristly. Hemelytra a little wider than the abdomen, shorter 

 than the scutellum, the costal margin broadly arcuated, the posterior 

 margin of the corium bluntly oblique, slightly sinuated ; epipleura3 long 

 and narrow ; membrane scarcely extending beyond the abdomen, di- 

 rected obliquely downward when closed. Legs stout; tibia?, with 

 numerous long stout spines and bristles, the anterior pair moderately 



