NORTH AMERICAN COLEOPTERA. 69 



T. cadiica n. sp. — Form oblong, slightly broader behind, color dirty yellow, 

 each elytron with a narrow piceous sutural vitta and another very narrow from 

 the humerus to apex, both more or less evanescent. Anteunse brownish, fifth 

 joint scarcely longer than the second. Head yellow, with a piceous occipital 

 spot, surface coarsely and roughly punctured. Thorax nearly twice as wide 

 as long, sides arcuate, angles not prominent, disc vague, obliquely impressed 

 each side; surface sparsely, but rather coarsely punctate, color yellow, with the 

 usual three black spots; scutellum piceous, or bordered with yellow; elytra 

 closely, but not densely punctate, the pubescence extremely short and incon- 

 spicuous, color dull yellow, with a narrow sutural darker border and a vitta 

 from the humerus. Body beneath and legs yellowish testaceous. Length .22 — 

 .26 inch. ; 5.5 — 6.5 mm. 



Male. — Last ventral broadly and moderately deeply emarginate ; claws nar- 

 rowly bifid close to the tip, the inner portion slightly shorter. 



Female. — Last ventral nearly semicircular, with a slight triangular notch at 

 middle; claws more deeply bifid than in the male, the inner portion shorter. 



At first glance this species would be supposed to be a Galerucella 

 from its color and feeble markings. It could only be suspected of 

 being a feebly colored canadeusk, but it is more coarsely sculptured 

 than that, and with the pubescence very indistinct. 



In the most perfectly developed specimens the markings resemble 

 L. bivittatus, but the vitta3 may be almost entirely obliterated. 



Owen's Valley, California, six specimens. 



T. iiititlicollis Lee, Proc. Acad. 1865, p. 219.— Oblong, nearly parallel, 

 clear yellowish testaceous, each elytron with a sutural and narrow lateral bluish 

 stripe. Anteunse piceous externally, the basal joints, except the first, paler ; 

 fifth joint much longer than the third. Head yellow, a small piceous occipital 

 spot, occiput coarsely punctate. Thorax less than twice as wide as long, slightly 

 narrowed iu front, hind angles rounded, sides obtusely angulate, disc scarcely at 

 all impressed, surface polished, color yellow testaceous, with the three spots 

 small; scutellum pale; elytra densely feebly punctate, sparsely finely pubescent, 

 apices subtruncate or sinuate, the sutural angle acute or even slightly prolonged, 

 a narrow sutural stripe extending nearly to apex, a narrow vitta from the hu- 

 merus joining the sutural near the apex ; epipleurae pale. Body beneath entirely 

 pale, except the sides of the abdomen at base. Legs and tarsi pale. Length 

 ,26— .40 inch. ; 6.5—10 ram. 



Male. — Last ventral broadly, but not deeply emarginate; claws finely bifid at 

 apex. 



Female. — Last ventral broadly semicircular, entire at tip; claws more deeply 

 bifid, the inner portion evidently shorter. 



This species is known by its smooth and even thorax, and by the 

 form of the apices of the elytra. The markings seem very constant, 

 and vary but little in width. 



Occurs in Colorado, Utah and New Mexico, 



TEANS, AM. ENT. SOC. XX. APRIL. 1893. 



