ROLAND HAYWARD. 215 



the dark markings of the elytra varies to a considerable degree, the 

 elytra varying from testaceous, faintly clouded on the disk with 

 dusky, to nearly black, broadly margined with testaceous. 



It occurs throughout the eastern United States from New Eng- 

 land to Texas. 



23. T. hrtiilns Lee. — Form slender, elongate, subdepressed. Color nearly 

 as in ephippiatus. Head scarcely narrower than the thorax; frontal grooves dis- 

 tinct, extending posteriorly as far as the hind margin of the eye; eyes large, 

 prominent; antennae less than one-half the length of the body, rnfo-testaceous, 

 the outer joints scarcely darker; palpi testaceous. Prothorax sub-quadrate, 

 about one-half wider than long, scarcely narrower at base than apex ; apex trun- 

 cate ; anterior transverse impression feeble or nearly obsolete ; median line fine, 

 abbreviated before and behind ; posterior transverse impression distinct, punc- 

 tate ; basal impressions very small, feebly marked ; base truncate; sides with the 

 margin narrowly reflexed, arcuate in front, sinuate behind ; hind angles rectan- 

 gular, finely carinate. Elytra very slightly wider than the thorax, elongate, 

 oblong-ovate, subparallel, with six moderately fine dorsal striae; margin narrowly 

 reflexed ; striae subentire, finely punctate, slightly less deeply towards the tip, 

 the fifth slightly grooved at apex; intervals tiat, the third with the first dorsal 

 puncture about one-fourth from base, the second slightly behind the middle. 

 Body beneath rufo-piceous or piceous, the head and thorax paler. Legs testa- 

 ceous. Length .10-. 13 inch ; 2.5-3.25 mm. 



Resembles the preceding most closely, but is abundantly distinct 

 by its more parallel, subdepressed form and by the form of the 

 thorax. 



Although, by no means subopaque, the surface is less shining 

 than in ephippiatus. Under high power it is seen to be very finely 

 alutaceous, especially on the elytra, and a slightly pearly lustre is 

 thus imparted. 



It is known to me ouly from Arizona. 



Group VII. lsevus. 



Head not inserted in the thorax to the eyes ; men turn with two 

 large, forameniform punctures behind the tooth. Thorax narrowly 

 margined, the margin not translucent. Elytra rounded at tip, with 

 two dorsal punctures on the third interval very close to the third 

 stria ; recurved portion of the sutural stria very short, not hooked 

 at tip, apparently representing the apical end of the abbreviated 

 third stria; marginal stria broadly interrupted at middle, obsolete in 

 Iobvus, in which the marginal punctures assume unusual prominence. 



In this group I have included three species, which agree in the 

 above characters. Of these, the first (tree h if or mis) has the second 



TRANS. AM. ENT. SOC. XXVI. FEBRUARY, 1900. 



