GYMNETIS. 355 



piano, clypeo quadrato, margine, prsecipue antico, acute reflexo, hoc medio sinuato ; thorace et elytris 

 sparsim et irregulariter arcuatim punctulatis, punctulis minoribus rotundis interinixtis, illo dorso et basi 

 fere impunctato, sutura parum elevato apice vix producto ; pygidio ( S ) flavo-opaco, sat magno insequaliter 

 convexo, vermiculato-strigoso, breviter setoso ; corpore subtus et pedibus grossius sparsim arcuato-punctatis. 

 Processus sternalis brevis, conicus, baud deorsum inclinatus ; tibia? anticae ( <S ) breviter et acute tridentatis. 

 Long. 17 millim. <$ . 



Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn). 



One example only of this beautiful little species has been received. 



6. Gymnetis margaritis. (Tab. XXII. fig. 8, s .) 



Supra pallide fusco-grisea vel fulvo-grisea, saturatius fusco-punctata (punctis minutis quoad formam multo 

 diversis), elytris plaga magna juxtascutellari, lateribus et costis versus apicem pallide et sordide fuscis, 

 minus dense punctatis, thorace linea tenui dorsali pallidiore ; capite antice, thoracis margine incrassato, 

 epimeris, scutello, corporeque subtus cum pedibus aurescenti-margaritaceis, nigro-punctatis (punctis 

 arcuatis) ; ventre metasternoque medio lsevibus. Capite nigro, punctato, clypeo quadrato, margine antico 

 elevato et medio sinuato, fere obtuse bidentato ; thoracis margine laterali ante basin siuuato ; epimeris 

 nigro-punctatis ; pygidio transversim subvermiculatim nigro-strigoso. Processus sternalis brevis, conicus, 

 haud deorsum inclinatus. 

 d 1 • Venter medio longitudinaliter depressus, segmentisque 2°-5 m antice macula nigra ; tibiae anticse angustae, 

 brevissime tridentatae. $ . Tenter medio late niger, pohtus. 



Long. 13-21 millim. tf 2 - 



Hah. Mexico, Guerrero {Baron), Acapulco, Oaxaca (Edge), Etla, Tehuantepec (Salle) ; 

 Guatemala (Salle). 



The single examples from Etla and Tehuantepec have a short and narrow dark brown 

 vitta from the middle of the base of each elytron. The unique Guatemalan specimen 

 has a lazuline-bluish tinge on the upper surface and on the tibiae. 



An example from Tehuantepec is shown on our Plate. 



7. Gymnetis apiata, 



Gymnetis apiata, Burm. Handb. der Ent. hi. p. 278 \ 

 Ha b. Mexico K 



8. Gymnetis diflicilis. (Tab. XXI. fig. 13.) 



Gymnetis difficilis, Burm. Handb. der Ent. iii. p. 283 \ 



Hab. Mexico \ Cordova (Salle), Misantla, Jalapa (Hbge), Temax in North Yucatan 

 (Gaumer); Guatemala, Chimaltenango (Conradt); Nicaeagua, Chontales (Belt). 



Burmeister says the males are lighter in colour and the females darker with the 

 apex of the elytra only pale ; but this distinction is not constant, as most of the males 

 I have seen have the same characteristic fulvous apex (clouded with pale brown) as the 

 females ; the darkest or blackish individuals are, however, females. The mesosternal 

 epimera are not furnished with a shining apical tubercle, and the mesosternal process 

 is simple, i. e. without tubercle above, and of little vertical thickness ; characters which 

 distinguish the species from several others of similar colour and markings. 



2ZZ2 



