C. Schaeffer.
The Species of the Coleopterous Family Temnochilidae Collected on the Stanford Expedition to Brazil.
Psyche 19(5):147-149, 1912.

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19121 Schaeffer~Coleopterous Family Ternnochilidoe 147 the hollow, spiny, chitinous object that an insect or bird foe would seize when attacking the tree-hopper could be no possible incentive toward further, efforts. In the above cited instance, this adaptation certainly saved two individuals from me, and with- out doubt in nature is often used successfully, and may be con- sidered as a sort of adaptive self mutilation, or autotomy. The accompanying plate will give an idea of the appearance of the insect, with and without the pronotal development. THE STANFORD EXPEDITION TO BRAZIL, 1911. J. C. BRANNER, Chief.
THE SPECIES OF THE COLEOPTEROUS FAMILY TEM- NOCHILIDB COLLECTED ON THE EXPEDITION.
BY CHAS. SCHAEFFER,
Museum of the Brooklyn Institute, Brooklyn, N. Y. Ternnochila chalcea Kirsch
Berl. Ent. Zeitsch. XVII, p. 149. Reit., Verh. Nat. Ver. Brunn, XIII, p. 13. Sharp, Biol. Cent. Am. Col. 11, pt. 1, p. 397. Eleven specimens collected at AbunA and Porto Velho, Rio Madeira.
The females of this species, which is widely distributed in Cen- tral and South America, have the last ventral segment more or less deeply and broadly triangularly impressed, a rather unusual female character in this genus.
Tenebroides bipustulata Fab.
Fabr. Syst. El. I, p. 152.
Reit. Verh. Nat. Ver. Brunn, XIII, p. 67. Sharp, Biol. Cent. Am. Col. 11, pt. 1, p. 422. Seven specimens
collected at Porto Velho and AbunA, Rio
Maderia.
The middle and hind tibiae are armed with one or two small



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Psyche
[October
spines on the upper edge, which is rather unusual in this genus and apparently overlooked by every author dealing with this species. Tenebroides bipustulata var. impressifrons Reit. Reit. Verh. Nat. Ver. Brunn, XIII, p. 66. Lev. Bull. Soc. Ent. Fr. 1889, p. VII.
Sharp, Biol. Cent. Am. Col. 11, pt. 1, p. 422. One specimen, Rio Madeira.
Differs from bipustulata only in the absence of the red elytral spots.
Tenebroides subcostata sp. nov.
Elongate, feebly convex, color of upper surface brown, under side, antennse and legs castaneous. Head moderately coarsely, not densely punctuate, a narrow space near clypeus almost smooth, with at most only a few very fine punctures. Antenna1 club abrupt and relatively large, sensitive space of joints large, occupying about half the width of the joint. Prothorax transverse, lateral margin crenulate, scarcely rounded at sides and feebly obliquely narrowing to base at about basal third; hind angles obtuse; anterior margin rather deeply emarginate, anterior angles prominent; basal marginal line almost entire, only narrowly interrupted at middle, surface rather coarsely and densely punctate at sides, less densely at middle. Scutellum small, smooth, shining. Elytra almost parallel, strise replaced by very narrow, smooth and more or less distinctly elevated lines; intervals wide and very .densely irregularly punctate. Underside of head smooth, shining with a few sparse punctures. Prothorax below densely and rather coarsely punctate. Abdominal segments irregularly transversely impressed and rather coarsely punctate. Length 7 mm.
Madeira-Mamore R. R. Co. Camp 39. One specimen. Judging from the descriptions this species seems to be related to anceps Lev. and lineolata Reit. Both have also the elytral striae replaced by narrow elevated lines but have the intervals distinctly uni- or biseriately punctured, while the intervals in subcostata are very densely, confusedly punctate.
Tenebroides vittata sp. nov.
Form short, feebly convex. Color above subseneous, shining, anterior mar- gin of head, lateral margin of prothorax, an almost entire vitta on each elytron, occupying the fifth and sixth intervals and lateral margin narrowly red. Under- side, antennae and legs reddish.
Head rather sparsely and finely punctate. Pro- thorax about twice as wide as long; sides arcuate but feebly narrowing towards base and not sinuate before basal angles; base scarcely narrower than the thorax at apical angles; basal margin almost straight with the angles rectangular, basal line entire; apical margin moderately deeply emarginate, angles acute, surface



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