102 



INSECTS OF SAMOA. 



A very puzzling series ranging in length from 5 to 10 mm. The shape of 

 the thorax also varies considerably, being much more strongly transverse in 



some examples than in others, and in some 

 having the sides more contracted in the 

 middle and the posterior angles more diver- 

 gent and more strongly produced. The 

 elytral sculpture is no less varied ; usually, 

 as in the type, the double series of foveae 

 between the costae are strongly transverse 

 with fairly regular parallel divisions, form- 

 ing more or less regular secondary costae 

 between the primary ones. Frequently a 

 secondary costa is interrupted and irregular, 

 and occasionally disappears altogether, 

 leaving a single series of transverse foveae 



m n between the primary costae, as in the genus 



Text-fig. 11. — oamoaneros acuticoms . 



Fairmaire. Xylobanus. Rarely, m large specimens, 



the foveae are larger and more quadrate, 



but the five examples of this form before me, no two of which are alike, show 



as wide a range of variation as the more numerous finely foveolate form, and 



come from the same localities, so that for the present I am unable to consider 



them as other than aberrant individuals. 



M. praelongus Fairm. is perhaps but a small form of the present species, 



with the anterior margin of the thorax rounded. 



51. Samoaneros muiri, sp. n. 



Fulvous, with the antennae (except the three basal joints), tarsi and disc 

 of the elytra smoky brown. 

 Length : 7-8 mm. 



Tutuila : centre of island, 900-1200 ft., 1 1 $, eastern end of island, 

 1070 ft., 1 21.vi.1918 (Kellers). 



(Paratypes in Bishop Museum, Honolulu, and in Coll. F. Muir.) 



In form and sculpture very similar to S. acuticollis Fairm., but differing 

 entirely in colour. The blackish-brown colour occupies all the dorsal area of 

 the elytra except the extreme base, the anterior portion of the suture, and the 



