THE GENUS CALOSOMA. 79 



1881-1884. Bates, H. W. Biologia Centrali- Americana, Insecta, Coleoptera, v. 1, 

 pt. 1, 316 p., 13 pi. 



Pages 21 , 262. The author had the opportunity of examining Guerin's type of C. peregrinator along 

 with a large series and states with certainty that it is quite distinct from C. prominens. LeConte, 

 himself, at one time proposed to unite them. 



1893-1894. Horn, G. H. The Coleoptera of Baja California. In Proc. Cal. Acad. 

 Sci., 2d ser., v. 4, p. 302-449, pi. 7-8. 



Page 307. Notes on habitat as follows: "Western Arizona, southern Mojave region, northern 

 Sonora, El Taste." 



CALOSOMA PARVICEPS Casey. 



ORIGINAL DESCRIPTION. 



Rather stout, with relatively very small head and prothorax, deep black, and 

 devoid of metallic reflection throughou t, the integuments rather shining. Head three- 

 fifths as wide as the prothorax, evenly and feebly convex, not rugose but finely, 

 evenly and rather closely punctured, becoming smooth at apex where the lateral 

 impressions are narrow and very deep; labrum dilated and rounded at the sides, 

 transverse at apex, with a broad and very shallow median sinuation, the surface 

 transversely impressed; antennae short and rather stout, only slightly longer than 

 the head and prothorax, the third joint fully three times as long as the second. Pro- 

 thorax moderately transverse, about four-fifths wider than long, widest at the middle 

 where the sides are obtusely and somewhat bluntly angulate, thence very moderately 

 convergent and broadly, evenly arcuate to the apex, oblique and straight behind, 

 becoming slightly sinuate near the base, the latter rather narrower than the apex 

 and somewhat as in the preceding species; disk broadly and very feebly convex, 

 polished, feebly wrinkled, finely and rather sparsely punctate, the punctures be- 

 coming coarser and subcoalescent at the sides, more numerous in # the impressions 

 near the basal angles; side margins defined by a rather thin, strongly reflexed bead; 

 median line fine and very feeble. Elytra oblong, scarcely more than one-third longer 

 than wide, fully twice as wide as the prothorax, only slightly wider at apical third 

 than at base, the^ides very feebly arcuate and very narrowly reflexed ; disk moderately 

 convex, with scarcely impressed even series of extremely fine punctures, which 

 become stronger toward base, the intervals there becoming transversely broken by 

 arcuate impressed lines as in peregrinator, the three series of interstitial asperate 

 punctules very feeble; marginal punctures visible only toward base, the sub marginal 

 asperate punctures rather widely separated and uneven. Legs moderate in length 

 and quite slender. Length 16.5 mm.; width 7.5 mm. 



The anterior tarsi of the male have the first three joints rather feebly dilated and 

 densely pubescent beneath, the pad of the first joint small and apical; the hind 

 trochanters and intermediate legs are not modified. Parviceps also belongs near 

 peregrinator, and greatly resembles the preceding species at first glance; it however, 

 differs in sculpture, structure of the labrum, in its much deeper epistomal impressions, 

 less transverse prothorax with less rounded side angles, shorter and broader elytra and 

 in several other minor characters. 



This species was described by Col. Trios. L. Casey in 1897. 1 The 

 type specimen or specimens were taken in Arizona. The description 

 compares this species to peregrinator Guer., but it is much smaller 

 than the latter. The species has also been recorded from San Diego 

 and San Clemente Island, Cal. 



CALOSOMA LUGUBRE Lee. 



ORIGINAL DESCRIPTION. 



Black, shining, face sparingly punctate, short thorax, with sides much rounded 

 and somewhat angled, truncate at the base, broadly depressed on both sides; with 

 elytra broader than the thorax by one-half, punctate in series, with punctures larger 

 towards the base and grooves transverse and joining. Length 1.08 inches. 



i Casey,T. L. Coleopterological notices. In Ann. N. Y. Acad. Sci., v. 9, p. 285-683 (p. 341-342), 1896-1897. 



