190 



GILBERT J. ARROW. 



Lachnosterna jamaicensis, sp. no v. (%. 1, c). 



Castaneo-rufa, nitida, corpore subtus cum pygidio pallide flavo ; oblonga, 

 cylindrica, capite fortiter dense punctato, clypeo bilobato ; pronoto sat profunde 

 haud crebre, medio paulo parcius, punctato, lateribus medio angulatis, postice 

 fere parallelis, antice convergentibus, vix arcuatis, baud crenatis, angulis anticis 

 fere rectis, posticis obtusis ; scutello utrinque minute punctato, medio fere laevi ; 

 elytris modice fortiter et crebre punctatis, costa suturali duabusque discoidalibus 

 vix perspicuis ; pygidio sat fortiter punctato ; pectore dense flavo- villoso ; antennis 

 9-articulatis, clava tripbylla. 



cJ, Antennarum articulo 6° breviter laminato, clava modice elongata ; tarsis 

 posticis quam tibiis paulo longioribus : $, antennarum clava brevi, tarsis posticis 

 quam tibiis brevioribus. 



Long. 17-18 mm. ; lat. max. 8 '5-9 '5 mm. 



Jamaica {A. H. Ritchie). 



It is a rather narrowly elongate insect, of a mabogany-red colour, with the lower 

 surface and pygidium pale yellow. The entire upper surface is shining, but rather 

 strongly punctured, the head densely so. The sides of the prothorax are not crenate 

 and are almost straight from the middle to the front and hind angles. 



The description of L. cylindrica, Burm., the exact habitat of which is unknown, 

 almost applies to this species, but, although the joint preceding the antennal club 

 of the male has a long sharp process as there described, there is not an abbreviated 

 lamella to the club in addition, nor is the pygidium almost smooth. 



Fig. 1. Dorsal and lateral aspects of aedeagus of male 

 of {a) Lachnosterna dilemma, sp.n. ; {h) L. trinitatis. 

 Arrow ; (c) L.jamaicensis, sp. n. ; (d) L. cmiiguae, sp.n. ; 

 (e) L. montserratensis, sp.n. ; (/) L. acmosa, sp.n. 

 Claws of (fc) L. montserrafensis ; (l) L, dilemma, ^ ; 

 (m) L. dilemma, $. 



The only species of the genus hitherto recorded from Jamaica is L. fervida, 



Fabricius, which, although said by its author to be North American, is attributed 



by Burmeister, who examined the typ)e, to Jamaica and San Domingo. That 



species has the elytra pubescent and pruinose, while in the new species they are 



shining and quite devoid of hair. 



