Royal Physical Society. 123 



From the East Indies (Boys' collection). The above descrip- 

 tion is taken from a unique (male) example kindly presented to 

 me by my friend Mr. Westwood. 



21. C. Spencianus, Kirby. 



Choleva Spenciana, Kirby, Fn. Bor. Amer. p. 108 (1837). 



Catops cadaverinus, (Esch.) Mannerh. Beitr. zur Kaf. Faun, der Aleu- 



tischen Inseln, Sitka, imd Calif., aus d. Bull. Naturforsch. Moscow, 



xvi. (1843) p. 82. no. 1/3. 

 fuscus, Hoff. var. Dej. Cat. 3rd ed. 133. 



" Oblongo-ovatus, fusco-piceus, tenue-pubescens; anten- ^S-^ 4 - 

 nis mediocribus, clavatis,basi ferrugineis; thorace brevi 

 transverso, basi parum latiore, angulis posticis obtusis ; 

 elytris rufescentibus punctatis, stria suturali impressa ; 

 pedibus ferrugineis piceis ; femoribus infuscatis. 



"Long, lllin., lat. 1 lin.* " 



Body black, covered with decumbent pale hairs. Head 

 minutely punctured; antennae shorter than the prothorax, the 

 two first joints ferruginous, the eighth shorter and smaller than 

 the rest ; mouth and palpi ferruginous ; prothorax not visibly 

 punctured, with all the angles rounded ; base with a slight sinus 

 on each side ; elytra acute, very minutely punctured, with a hair 

 emerging from each puncture, without furrows, except a single 

 one parallel with the suture, ferruginous, black at the tip ; ab- 

 domen piceous, rufous at the base ; legs ferruginous. 



Found in the Sitka Islands by Eschscholtz and Kuprianoff. 



A comparison of the authentic unique specimen of Kirby' s 

 Choleva Spenciana preserved in the British Museum, with speci- 

 mens of Mannerheim's Catops cadaverinus, shows that they are 

 the same species. 



Mr. Kirby remarks regarding it, that " This species appears 

 to present the type of a new family of Choleva, not noticed in 

 Mr. Spence's ' Synopsis Sectionum ' in his admirable Monograph 

 of that genus. From his first section [Choleva, Steph.) it bor- 

 rows the rounded posterior angles of the prothorax ; from his 

 second (Catops, Steph.) its clavated antennae; and from his 

 third (Ptomaphagus, Steph.) its unfurrowed elytra : it seems 

 properly included in the second, with which it most agrees in 

 habit t" 



Var. b. Mann. Bull, de la Soc. Mosc. 1843, pp. 173, 254. 

 Ferrugineo-testacea ; capite fusco; thoracis disco antenmsque 



infuscatis ; elytris pallide livido-testaceis, postice nonnihil 



obscurioribus. 



As Count Mannerheim observes, this species is somewhat allied 

 to C. morio, Erichs. (fuscus, Gyll.), but distinguished from it by 



* Mannerheim in loc. cit. f Kirby in loc. cit. 



M2 



