80 Major F. J. S. Parry on 



Leptinopterus affi^nis, ^ , Parry, n. s. (var.max. : $ ignota) . 

 PL I. fig. 5. 



Affinis L. V-niger, nigro-piceus. Mandihulce capite 

 prothoraceque paullo longiores, deplanatae, irregulariter 

 arcuata?, intus tuberculis parvis quatuor, pone apicem 

 processuque bifido, instructae. Caput protliorace paullo 

 angustius, antice emarginatum, ante oculos fortiter angula- 

 tum ; lateribus fere rectis. Protliorax bifoveatus^ in medio 

 longitudinaliter leviterque canaliculatus ; scutello ciliato. 

 Elytra testacea, prope scutellum plaga triangulari notata ; 

 angulis humeralis tuberculo parvo instructis. Pedes in- 

 ermi ; femoribus in medio rubro-maculatis. 



Long. Corp. lin. 7 ; mandib. lin. 3. 



Hab. — In Brasilia merid. apud fluvium Paranam. 



There is great affinity between this insect and L. V- 

 niger, Hope {triangularis, Burm,); but after comparing 

 it with several specimens of the latter species, I find the 

 following marked difi'erences between the two ; the man- 

 dibles are not regularly arcuate, becoming abruptly in- 

 curved, near the apex ; the prominent subapical bifid tooth 

 I have in no case met with in specimens of L. V-niger ; 

 moreover, the mandibles are, internally, considerably 

 more emarginate near the apex. The two foveas, exhibited 

 on the disc of the prothorax, are also peculiar to this species 

 (unless they may ultimately prove to be abnormal) . The 

 triangular plaga on the elytra is considerably smaller, 

 originating at a very slight distance only from the scu- 

 tellum, whereas, in the former, it proceeds almost from 

 the humeral angle ; the punctuation of the elytra is also 

 scattered and sparse, whereas, in V-niger it is lineo- 

 punctate ; the legs, moreover, are entirely black, with 

 the exception of the femora being rufous in the centre, 

 whilst in L. V-niger the legs are constantly red. This 

 species belongs to the second section of the genus, having 

 the armature of the mandibles symmetrically placed on 

 each side. 



Leptinopterus Paranensis, S, Parry, n. s. (var. max.: 

 ? ignota). PL I. fig. 4. 



L. njger, opacus, sub lente minute punctulatus. Man- 

 dihulce graciles, leviter arcuatas, fere cylindricte, intus^ 

 excavates, tuberculo obtuso prope basin, spina minima 



