292 LAMELLICOENIA. 



tip being very spiniform and much shorter than the lower part. The hindmost tarsi 

 only have a brush of stiff fulvous hairs beneath the first two joints. 



The thorax is rather strongly punctured, quite strongly and closely so towards the 

 sides ; the lateral margin, from the dilatation to the anterior angles, is greatly 

 decreased in thickness, and the anterior angles are acute. The elytra are finely and 

 sparsely punctulated, but vary somewhat in this respect ; the costse are indicated by 

 punctured lines, and the posterior limb is closely and irregularly punctured; the 

 sutural apex is not produced. The legs, including the tarsi, are red. The pygi- 

 dium is subopaque, finely alutaceous or vermiculate-strigulose, without mixture of 

 piliferous punctures. 



2. Phalangogonia sperata. 



Phalangogonia sperata, Sharp, Journ. Linn. Soc., Zool. xiii. p. 134 l . 

 Phalangogonia stipes, Sharp, loc. cit. 2 



Hdb. Central America 1 ; Nicaragua 2 (Salle), Chontales (Janson) ; Panama, Volcan 

 de Chiriqui 4000 to 6000 feet (Champion). 



A large number of examples. 



Differs from P. obesa (both sexes) in the much finer and sparser punctuation of the 

 thorax and in the lateral margins of the same being continued of equal thickness to the 

 anterior angles, which latter are obtuse, sometimes rounded ; also in the sutural apex 

 of the elytra having a distinct spiniform tooth, and in the pygidium being very 

 minutely strigulose and sprinkled with larger piliferous punctures. The male differs 

 from the same sex of P. obesa in the three basal joints of the hindmost tarsi and two 

 of the middle tarsi being clothed with a brush of fulvous hairs ; it has similarly 

 robust and very unequally cleft major tarsal claws, and the clypeus is acutely produced 

 at the anterior angles, but the front margin is much straighter and scarcely arcuated. 



The colour varies little on the upper surface, but on the under all gradations exist 

 from uniform fulvo-castaneous to black, the metasternum sometimes and the abdomen 

 at others only being black ; the last-mentioned (described as the colour of P. stipes by 

 Dr. Sharp) is most prevalent in Chiriqui. 



Examples cccur at Chontales with black tarsi (the abdomen and sternum variable), 

 but I can detect no structural difference between them and the others. 



3. Phalangogonia lacordairei. (Tab. xvn. fig. 3.) 



Phalangogonia obesa, Lacordaire, Gen. Col. iii. p. 371 x (nee Burm.). 



Late ovata, fulvo-testacea, polita, marginibus capitis, thoracis, scutelli elytrorumque anguste nigris ; subtus 

 nigra, nitida, femoribus et tibiis rufo-castaneis ; pygidio nigro politissimo, punctis nonnullis longe piliferis 

 versus apicem exceptis, impunctato. Clypeus dense confluenter punctatus ( § ), antice leviter arcuatus, 

 angulis valde rotundatis ; thorax post medium angulatim dilatatus, margine antice gradatim attenuato 



