330 BBV. H. S. GOBHAM ON THE [Apr. 19, 



Dinoderus bifoveatus, Fleut. et Salle, Ann. Soc. Ent. Fr. 1889, 

 p. 419. 



Dinodenis miautus, Fleut. et Salle, 1. c, tiee Fabr. Ent. Syst. 1792, 

 i. p. 363, nee Oliv. Ent. iv. no. 77, t. 2. f. 12 a-h. 



Dinodenis subsiriatus, Gorh. Biol. C.-Am. 1. c. p. 218. 



N^ec Apate substrlata, Payk. Fn. Suec. ii. p. 142. 



^ec Dinoderus substriatus, Jacq. Duv. I.e., nee auct. Europ. 



Hab. St. Yixcext : leeward side. Grenada : Balthazar 

 (windv^'ard side), Grand Etang Eoad and Mount Gay Estate 

 (leeward side) {H. H. Smith). 



Many examples. 



The insect which I record hei*e is not that generally known as 

 Dinoderus substriatus, found iu England and in various parts o£ 

 Europe. Stephens, in describing his genus, assigns the insect he 

 took for his type with doubt to PaykuU's species. The Ste- 

 phensian is, however, the same insect as that figured by Jacquelin 

 Duval. Our West-Indian insect is a cosmopolitan species of 

 Hhizopertha, easily known by its short thick-set form, by four or 

 five concentric rows of muricate tubercles on the front of the 

 thorax, but especially by the double fovea on its base. It does 

 not agree either with the Fabrician description of Apate minutus 

 nor with the figure given by Olivier, which latter, indeed, appears 

 to me to represent the insect known to us as Dinoderus substriatus 

 or an allied species, if, indeed, it ever really came from Xew 

 Zealand at all. It will certainly save confusion in any case to 

 adopt the WoUastonian name. Rhizopertlia is distinguished from 

 Dinoderus on account of the form of the last three joints of 

 the antennae. The tarsi are said by J. Duval to be " very short " in 

 Dinoderus, " very long " iu Bhizopertha : but the latter statement 

 seems incorrect to me; I do not see much diffei'ence. 



XXLOGEAPHUS. 



XylograpTius, Mellie, Eev. Zool. 1847, p. 109 ; Lacord. Gen. 

 Col. iv. p. 549 ; Gorh. Biol. C.-Am., Col. iii. pt. 2, Suppl. p. 354. 



Xylogbaphus suilltjs. 



Xylographus suillus, Gorh. Biol. C.-Am., Col. iii. pt. 2, Suppl. 

 p. 355, t. 13. ff. 21, 21 a. 



Hah. St. Vin'Cent : leeward side {U. H. Smith). 



It is interesting to find this Guatemalan insect reoccurring in the 

 West Indies. Specimens from St. Vincent are a little larger on 

 the average than those from Central America, but are quite 

 similar in other respects. 



Seven examples. 



Cis. 



Cis, Latreille, Prec. Car. Gen. Ins. p. 90 ; Gorh. Biol. C.-Am., 

 Col. iii. pt. 2, p. 220. 



Cis PTTSILLT7S, Sp. n. 



Brunneus, thorace transverso, subopaco, lateribus tenuiter margi- 



