220 [October, 



Sixteen examples — eight of the form selected as typical, six of the 

 var. /3, and one each of the others. The form with a ■ testaceovis pro- 

 thorax is labelled Megalocera {Lagria) colJaris Oliv. in the Fry 

 collection, a determination that cannot be accepted, Olivier's type, from 

 an unknown locality, having blue elytra, etc., and his rough figures of 

 it do not accord with the Brazilian insect. The type of Megalocera, 

 31. rubrical] is Hope, from " Resin anime " [E. Africa], is very different 

 from the species here described.* 



2. — Pseudolaqria diversa, n. sp. 



Extremely like P. mutahilis, and representing that species in the Amazon 

 region ; diflfering as follows : antennae { S ) still more elongate, reaching to far 

 beyond the middle of the elytra, joints 3-10 obliquely produced at the inner 

 apical angle, this appearing strongly serrate, 3 longer than 4, 11 testaceous, 

 equalling 9 and 10 united, ( $ ) much ps in mufahilis; eyes larger, subcontiguous 

 in J, slightly more distant in $ ; elytra a little more coarsel}^ punctate ; general 

 coloration equally variable. 



Typical form. — Nigro-piceous or black, the head in front, the antennae 

 wholly or in part (the apical joint constantly), the prothorax, a sharply defined 

 transverse patch at the apex of the elytra, and the legs and under surface in 

 part or entirely (the apices of the tibiae excepted), testaceous, (c? $.) 



Var. a. Nigro-piceous, the elytra with a narrow oblique streak extend ingf 

 down the disc anteriorly, and the apex, the prothorax (a transverse mark 

 on the disc excepted) and palpi, and the legs and under surface in part, 

 testaceous. ( J .) 



Var. ^. As in a, but with the streak on the disc of the elytra dilated into 

 a broad stripe extending down two-thirds of their length (leaving a triangular 

 scutellar patch, the suture and sides, and a common, broad, curved subapical 

 fascia, infuscate) ; the legs testaceous, the apices of the femora and tibiae 

 excepted. ( 5 .) 



Var. y. Testaceous, the head ^except in front), and the elytra with the 

 base and a common, broad, curved, subapical fascia, infuscate. ($.) 



Length oi-8, breadth 2-2| mm. ( cj" 2 •) 



Hah. : Amazons, Ega, Santarem (H. W. Bates), Coary (Trail). 



Eight specimens, five of which belong to the form selected as typical. 

 The colour- variation, it may be noted, is not quite homologous with that 

 of P. mutahilis, no wholly dark form occurring in the series of the 

 Amazonian insect, for which a separate name is required. 



3. — Pseudolagria Jlavifrons, n. sp. 



(J . Narrow, moderately elongate, shining, thickly clothed, the legs in- 

 cluded, with long, soft, erect hairs ; black, the anterior portion of the head, a 

 streak around the eyes behind, the tips of the tarsi and palpi, the apical joint 



* Cf. Ent. Mo. Mag. 1917, pp. 7, 8. 



