NORTH AMERICAN COLEOPTERA. Ill 



rior angles of the ventral segments prominent, the surface closely punctate, the 

 punctures very elongate, the first ventral hroadly sulcate at middle, the last ven- 

 tral with entire margin ; anterior femur with a moderately strong acute tooth, 

 not serrate on its free edge. Length .86 inch ; 22 mm. (Fig. 203.) 



il/rt?fi. ^Unknown. 



Female. — Anterior tihia (206) feebly arcuate, the middle and posterior straight ; 

 last ventral .segment (205) sinuately truncate, the angles distinct, the surface 

 smooth at middle, a distinctly elevated submarginal serrulate ridge. 



The large size and robust form of this species are rather striking 

 in its association with those forms in which the apices of the elytra 

 are not spiniform. The sculpture is also peculiar and with the sui-- 

 tace color resembles more closely our species of Chalcophora near 

 v{rgini€n.'iii<. 



One specimen from Arizona given me by Mr. F. G. Schaupp with- 

 out special designation of locality. 



42. C. aiialis Lee. — Form moderately elongate, color greeni.sh or dark 

 bronze, moderately shining, beneath bronze, more or less green along the middle ; 

 antennse cupreous, gradually more slender to tip, the third joint nearly as long 

 as the next three ; front slightly convex, cupreous, coarsely and closely punc- 

 tured, an inverted chevron above more distinct in the female; clypeus (208) 

 liroadly triangularly emarginate, arcuate each side ; thorax one-half wider than 

 long, broader at base, the sides slightly sinuate and feebly narrowed both at apex 

 and base; disc moderately convex, even, without grooves or depressions, the 

 punctures moderately close and transversely confluent ; elytra wider than the 

 thorax, nearly isarallel, narrowed at apical third, the margin serrate, the apices 

 obtuse ; disc moderately convex, the first costa faintly elevated at apical half, 

 continued by a smooth line, the other costae either abrupt or faintly indicated by 

 smooth lines, the basal fovea moderately deep, another depres.sion near the mid- 

 dle of each elytron, the surface coarsely not densely punctured at apical half, 

 more densely and transversely subconfiue'nt near the base ; body beneath rather 

 sparsely punctate ; prosternum with a well marked lobe in front ; anterior femur 

 with a moderately strong tooth, serrate on its distal edge ; last ventral segment 

 with a submarginal serrate ridge, the outer margin entire. Length .28 - .32 inch ; 

 7-8 mm. ( Fig. 207. ) 



3Iale. — Prosternum coarsely not closely punctate; anterior tibia (211) slightly 

 arcuate, with a very feeble dilatation at apex ; middle and posterior tibife straight ; 

 last ventral segment (209) semi-circularly emarginate, with the angles acute and 

 an ante-apical, transverse, serrate line ; last dorsal sparsely punctate near the 

 apex, the margin entire. 



Female. — Pro.sternum as in the male ; tibife straight ; last ventral (208) emar- 

 ginate, nearly as in the male, without distinct ante-apical, transverse, serrate 

 line ; last dorsal coarsely punctate, a slight depression at middle of apical margin. 



Of all the species without special supei-ficial characters this one is 

 probably the easiest to recognize by its structural characters. There 

 is but little variation, except in color. The sexual characters as 



