PLECTEOTETKA.— PHEYNOCEPHA. 291 



while the space close to the suture at the same place is somewhat hollowed out, the 

 sutural margin at the same time being distinctly raised. In other respects the species 

 has nothing to distinguish it from many others of its allies. 



For the easier determination of the species described here, the following diagnosis 

 may be useful : — 



1. Antennae with the third joint distinctly longer than the fourth. 



<? . Elytra with four double rows of punctures ; $ , elytra longitudinally costate . clarki. 

 „ Elytra simply and strongly punctate-striate, interspaces costate at the apex 



and sides dohrni. 



„ Thorax longer, elytra extremely finely punctate-striate submetallica. 



„ Elytra very closely and finely geminate punctate-striate proximo,. 



„ Elytra finely and regularly punctate-striate, interstices not costate . . . sallcei. 

 „ Elytra closely punctate-striate, underside and legs black nigripes. 



2. Antennas with the third joint as long as or scarcely longer than the fourth. 



„ Intermediate femora with a long projecting appendix monstrosa. 



„ Elytra with the base much raised, closely geminate punctate-striate . . . basalis. 



„ Elytra with four double rows of fine punctures, size 2 lines guatemalensis. 



„ Elytra closely and simply punctate-striate chiriguensis. 



„ Elytra with four double rows of punctures, the sides costate flohri. 



„ Elytra with the interstices transversely wrinkled rugosa. 



„ Antennae scarcely thickened at the base ; elytra geminate punctate at the 



disk, irregularly at the sides inagualis. 



? . Elytra covered with fine pubescence hirsuta. 



<£ . Elytra semifulvous, geminate punctate, size 3 lines . . regularis. 



PHRYNOCEPHA. 



Phrynocepha, Baly, Journ. of Entom. i. p. 201 (1861). 

 Romalocera, Dejean, Cat. 3rd ed. p. 413. 



The rather large size and robust general appearance of the Central-American species 

 upon which this genus was founded makes the latter comparatively easy to distinguish. 

 The antennas are extremely robust and tapering towards the apex in the male, the 

 thoracic impression is rather obsolete, and the tibise are very deeply channelled at their 

 outer side. Another species has been described from Paraguay. 



1. Phrynocepha pulchella. (Tab. XVII. fig. 24.) 



Phrynocepha pulchella, Baly, Journ. of Entom. i. p. 201, t. 9. fig. 8 1 . 

 Romalocera forticornis x Dejean, Cat. 3rd ed. p. 413 2 . 



2p2 



