150 GEO. H. HORN, M. D. 



I^. discoidalis n. sp. — Beneath piceous ; antennse black, under side of basal 

 joint yellow; thorax piceous at middle, broadly yellow at the sides, median im- 

 pression deep but narrow, surface rather shining, sparsely finely punctat,e and 

 rather sparsely pubescent; elytra orange-yellow, with a common blue-black oval 

 space beginning at the apex and reaching nearly the middle, surface not striate 

 but with three faintly elevated costae, intervals rather coarsely punctate, surface 

 fulvo-pubescent ; anterior and middle femora orange-yellow. Length 7-7.5 mm. 

 This species differs in the sculpture of the elytra from both the de- 

 scribed species as well as in their color. 



Three specimens, southwestern Texas. 



In the work above, cited p. 237, Mr. Gorham is disposed to refer Eros 

 humeralis and trUineatus to Plateros. For reasons above given I prefer 

 publishing the opinion without comment. 



CHAUIilOGNATHUS Hentz. 



C ineptus n. sp. — ReddisJi yellow, head, tibiae, tarsi, outer half of femora 

 and apical third of elytra black. Antennae long, slender, flattened, yellowish, 

 basal joint piceous, third joint a little shorter than the fourth, outer joints slightly 

 fuscous. Head oval, black, opaque, moderately densely punctured, ej'es moder- 

 ately prominent. Thorax much wider than the head, broader than long, sides 

 regularly arcuate and reflexed, surface moderately closely punctate sparsely pu- 

 bescent, disc usually with three black spots which are sometimes absent or con- 

 fluent. Elytra scarcely wider than the thorax, parallel, the apices obliquely 

 rounded, moderately closely punctate, sparsely pubescent, apical third black, each 

 black space arcuate in front. Scutellum reddish yellow. Body beneath yellow, 

 the terminal segment of % black. Length .60-.64 inch ; 15-16 mm. 



This species is most closely related to profundus in form, but the two 

 differ in coloration, the latter being scarlet, including the head, antennae 

 uniformly brown and legs entirely black. 

 Occurs in Arizona (Morrison). 



C. misellus n. sp. — Form slender, pale yellow, head and legs black. Head 

 oval, black, subopaque, finely punctulate, sparsely pubescent, gense and mandi- 

 • bles yellow. Antennre slender, piceous, nearly as long as the entire body in the 

 male, third joint very little shorter than the fourth. Thorax wider than the head, 

 as long or a little longer than wide % , broader than long 9 > sides feebly arcuate, 

 rather broadly reflexed, disc nearly entirely smooth and shining. Elytra wider 

 than the thorax, covering entirely' the abdomen in both sexes, parallel, apices 

 separately rounded, surface opaque, sparsely pubescent, moderately closely and 

 deeply, not coarsely punctured, the sculpture more rugose toward the apex, color 

 sometimes entirely pale yellow, often with a small piceous spot on each elytron 

 one-third from apex. Body beneath pale yellow % , with the coxse and posterior 

 portion of metasternum brown ; in the J the basal portion of each ventral seg- 

 ment is brown. Legs black. Length .42-.60 inch ; 10.5-12.5 mm. 



This species resembles discus Lee, and differs especially in the black 

 head, and the absence of discal thoracic spots. In discus both sexes are 

 pale beneath. 



Occurs in Arizona. 



