96 



INSECTS OF SAMOA. 



between them ; labrum exposed. Antennae very short, joints 3 to 6 together 

 only about half as long as the club. Pro thorax strongly arched in front, widest 

 a little before base, the sides finely marginate, but margins not reflexed and 

 running gradually into the arch of the anterior edge ; basal angles completely 

 rounded ; disc strongly, not very closely punctate, the interspaces nitid, with 

 minute puncturation discernible only under strong magnification. Elytra 

 seriate punctate, punctures large but rather shallow, with distinct intervals 

 between them ; the five dorsal striae turn a little outwards towards the base, 

 the 5th meeting the 8th at the shoulder, 6th and 7th abbreviated ; humeri 

 completely rounded, the upper epipleural carina running gradually into the 

 basal carina ; epipleurae gradually narrowed behind, disappearing about the 

 middle ; apex rather acute. Wings ample. First abdominal sternite rather 

 longer than the next two together, intercoxal process narrow, acute, finely 

 bordered. 



Length : 1 mm. 



Tutuila : Pago Pago, 9.ix.l923, 1 example (Swezey and Wilder). 

 (Type in Bishop Museum, Honolulu.) 



The single example is very defective, with but one remaining tarsus, yet 

 presents so many interesting features as to justify description. The absence 

 of a frontal tubercle and of a tubercle on the first abdominal segment, in 

 conjunction with the slight development of the front of the head indicate that 

 the type is a female. 



Family : LYCTIDAE. 

 42. Lyctus brunneus Stephens. 



III. Brit. Ent. Mandib., iii, p. 117, pi. 18, fig. 4, 1830 (England). 



L. disputans "Walker, Ann. Mag. Nat. Hist. (3), ii, p. 206, 1858 (Ceylon). 



L. costatus Blackburn, Trans. R. Soc. S. Austral., x, p. 265, 1888 (Australia). 



L. rugulosus Montrouzier, Ann. Soc. Ent. France, 4, i, p. 266, 1861 (Woodlark Is.). 



L. carolinae Casey, Ann. N. York Ac. Sci., vi, p. 13, 1891 (U.S.A.). 



• 



Upolu : Apia, v., vi. ; Malololelei, 25.iv.1924. 

 Tutuila : Leone Road, 24.iii.1926 (Judd.). 



Commonly known as the Powder-Post Beetle, this destructive woodborer 

 is now almost universally distributed, and has been many times described from 



