86 BULLETIN 417, U. S. DEPAETMENT OF AGRICULTURE. 



jar was kept in a closet in the laboratory at night, where it was much 

 warmer. 



Similar experiments were tried with the larvae of this species and 

 it was found that they also feed during both day and night. 



BIBLIOGRAPHY. 



1853. LeConte, J. L. Notea on the classification of the Carabidee of the United 

 States. In Trans. Amer. Phil. Soc, v. 10, n. s. ; pt. 3, art. 27, p. 364-403. 

 Page 400. Original description of Calosoma lugubre. 



1881-1884. Bates, H. W. Biologia Centrali- Americana, v. 1, pt. 1, 316 p., 13 pi. 



Pages 21, 262. Note to the effect that C. peregrinator Guer. resembles more closely C. lugubre 

 Lee. than C. prominens Lee. 



1890. Bruner, L. Insects Injurious to Young Trees on Tree Claims. Univ. Nebr. 

 Bui. 14 (Bui. Agr. Expt. Sta. Nebr., v. 3, art. 2), p. 83-149, 98 fig. 

 Page 117. Note of this species and C. externum being attracted to lights and their feeding upon 

 May beetles. 



CALOSOMA PALMERI Horn. 



ORIGINAL DESCRIPTION. 



Black, shining. Body feebly winged. Antennae piceous, fourth joint slightly 

 shorter than the fifth. Mandibles sparsely punctured with coarse and fine punctures 

 intermixed. Head nearly smooth, with scarcely visible transverse wrinkles and very 

 minute punctures. Thorax nearly twice as wide as long, base broader than the length 

 and not emarginate, sides moderately arcuate and converging posteriorly, margin very 

 narrow, not reflexed, hind angles obtuse, basal impressions moderately deep, median 

 line very fine; surface extremely finely transversely wrinkled, and with very few 

 punctures near the basal margin: elytra obovate, humeri broadly rounded, sides 

 moderately arcuate, disc moderately convex," obsoletely substriate, striae very indis- 

 tinctly punctured, intervals 4-8-12 with very distinct larger punctures. Body be- 

 neath black, shining, smooth or obsoletely transversely wrinkled. Length .74 inch; 

 19 mm. 



Male. — Anterior tarsi with three joints dilated and pubescent, fourth joint glabrous. 



Length 19 mm. Guadalupe Island, Cal. 



Following this description, 1 Horn says : 



This species should be referred to the same group with triste, etc. (Group iv., Lee. 

 Proc. Acad. 1862, p. 53) from all the species of which it differs by the thorax being 

 narrowed behind and the base narrower at the apex; the elytra are also obovate in 

 the present species and oblong oval in all the others. The body in Palmeri is feebly 

 winged, and in the others (except Eaydeni) the wings are fully developed. In the 

 latter species the elytra are connate, and I have been unable to detect traces of wings. 



Numerous specimens were collected on Guadalupe Island by Dr. Edward Palmer, 

 to whom I take great pleasure in dedicating it. Specimens were sent by me to my 

 friend, M. Aug. Salle, of Paris, who informs me that there is nothing in the fauna of 

 Mexico with which it may be compared. 



Aside from the locality just mentioned, this species occurs in Cali- 

 fornia and Mexico. 



CALOSOMA TRISTE Lee. 



ORIGINAL DESCRIPTION. 



Black, elytra very indistinctly striate and pimctate, with three rows of larger 

 impressed punctures. • 



Habitat: Territory of Missouri. 



Ovate, somewhat elongated, with posterior somewhat convex, black. Head punc- 

 tate anteriorly, minutely rugose posteriorly with impressions lightly marked, arched 

 posteriorly. Thorax lightly corrugated and punctate, with punctures larger towards 

 the base; emarginate anteriorly, sides rounded, lightly depressed posteriorly; pos- 

 terior angles extending below the quite even base; no impressions anteriorly, lightly 



1 Horn, G. H. Notes on the coleopterous fauna of Guadalupe Island. In Trans. Amer. Ent. Soc, 

 v. 5, p. 198-201 (p. 199), 1874-1876. 



