October 2, 1891.] [Hora. 



PROCEEDINGS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT PHILADELPHIA, FOE PROMOTING CSEFUL KNOWLEDGE. 



VOL. XXIX. JULY TO DECEMBER, 1891. No. 136. 



Notes on Calospasta Lee. 



By George If. Horn, M.D. 



(Eead before the American Philosophical Society, October 2, 1891.) 



Some years ago, in a critical review of the genera of Meloidae, it seemed 

 evident, from the modifications of the form of the tarsal claws, that some 

 genera remained to be discovered to fill the gaps existing. These forms 

 were indicated at the time and one of them has already been found. 

 Another of the missing links must come in the vicinity of the genus 

 under discussion and is really foreshadowed in the slight claw modifica- 

 tions already observed. That the material may be at hand and ready for 

 use in the event of further discoveries is my excuse for presenting this 

 short paper for the consideration of those interested. 



CALOSPASTA LEG. 



In the Trans. Am. Ent. Soc., 1878, p. 60, I gave a brief table of the 

 species then known to me. Since then another species has been described 

 (loc. cit., 1883, p. 312). 



Two more new species have recently been collected, both from Cali- 

 fornia, which, with the one not included in my previous table, will require 

 some modification of it. 



1. Spurs of hind tibiae slender and not very dissimilar 2 



Spurs of hind tibiae dissimilar, the inner slender, the outer cylindrical 



and truncate 6 



2. Elytra strongly costate 1. mirabilis. 



Elytra not costate ... 3 



3. Median line of front deeply impressed ; head red 2. histrionica. 



Median line of front not at all impressed ; head and thorax dark 



blue or green 4 



4. Median line of thorax impressed ; thorax not longer than wide ; 



color green 3. viridis. 



Median line of thorax not impressed 5 



PROC. AMER. PHILOS. SOC. XXIX. 136. N. PRINTED DEC. 14, 1891. 



