452 Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 



elliptic) in their outline, and more rugulose ; also more deeply, 

 and much more closely, substriate-punctate, the punctures being 

 considerably larger and more numerous, each series, however, 

 being composed successively of slightly larger and smaller ones 

 alternately. 



The present insect, which is very much more variable in 

 stature than the last (the smallest specimens being only a line 

 in length), was discovered by Mr. Bewicke amongst old wood in 

 a small shed, or out-house, at the Praia Formosa, near Funchal. 

 In conjunction with the P. Monizianum, it is a most important 

 addition to our fauna. 



Genus CAULOTRUPIS. 

 Wollaston, Ins. Mad. 308 (1854). 



Caulotrupis subnitidus, n. sp. 



C. ovato-suhcylindricus, crassiusculus, niger, subnitidus, alutaceus ; 



prothorace amplo, subtiliter punctate ; elytris leviter striato-punc- 



tatis ; antennis ferrugineis ; pedibus piceis. 

 Long. corp. lin. If -2. 

 Habitat in ramis emortuis Euphorbia piscatorice, in locis Maderse 



inferioribus passim. 



C. ovate-subcylindric and thick, black, minutely alutaceous 

 all over, and subopake, or only very slightly shining. Rostrum 

 short and broad in the males, longer and more slender in the fe- 

 males. Prothorax large ; minutely, but quite perceptibly, punc- 

 tulated ; and broadest about the middle. Elytra rather straight- 

 ened towards the shoulders; lightly, but distinctly, striate- 

 punctate ; and broadest about the middle. Antenna short, and 

 ferruginous. Legs piceous. 



The present Caulotrupis is very closely allied to the C. lacer- 

 tosus -, nevertheless it is, on the average, a trifle larger than that 

 species, its surface (although equally alutaceous) is less opake, 

 the punctules of its prothorax are more evident, its elytra are 

 just perceptibly more straightened towards the shoulders [which 

 is best seen when the insect is viewed with its head pointed 

 backwards], and have their stria? deeper and more decidedly 

 punctured (but with the interstices less so); its habits are also 

 apparently different all the specimens of it which I have as yet 

 seen having been captured from the dead stems of the Eu- 

 phorbia piscatoria of low elevations (under which circumstances 

 it was first detected by myself, towards Cani90, to the east of 

 Funchal, on the 23rd of December 1858) ; whereas the C. lacer- 

 tosus occurs beneath the bark of laurels of loftier altitudes. It 

 has also been captured by S r . Moniz and Mr. Bewicke. 



