158 Mr. H. W. Bates's additions to the 



sinuate-truncatiire is narrow, and its angles, prolonged 

 and acute, are rather closely approximated. The grey 

 fasciae are about equal in width to the two resulting 

 intermediate fasciae of the brassy-black ground colour. 



Vespcroctcnus flohri, Bates, Entom. Monthly Mag., 

 1891, p. 160. 



This singular form is a notable addition to the insect 

 fauna of Mexico, for the discovery of which science is 

 indebted to the zeal and industry of Mr. Pdchard Becker. 

 Mr. Julius Flohr, with his usual liberality, has supplied 

 us with specimens of both sexes. Mr. Becker's examples 

 were obtained in the Sierra Madre of Durango. 



Gaurotes midtigiittatus, n. sp. (PI. VI., fig. 2, 2 )• 

 G. inaculoso (Bates) affinissimus, differt corpore toto obscitre 

 viridescenti-seneo, antennis fusco-nigris, articulis 3 — 11 basi griseis 

 vel fulvo-griseis. Supra sat dense setifero-piinctulatus punctis 

 minoribus intermixtis, vertice spatio late mediano thoraceque disco 

 plus minusve laevibus, pube grisea maculatim vestitus, elytris prae- 

 cipue maculis parvis passim ornatis, apice sinuato-truncatis, angu- 

 lis (praecipue suturali) acutis dentiformibus. Subtus cum pedibus 

 densius griseo-pubescens ; mesosterno convexo, antice alto verti- 

 cali. (J. Pygidium elongatum, deflexum, politum. Long. 11 — 

 14 millim., <? $ . 



Hah. Mexico, Xucumanatlan in Guerrero, alt. 

 7000 ft. {H. H. Smith). Two females. 



A male example received from Mr. Harford, also from 

 the State of Guerrero. 



Ophistomis xanthotelns, n. sp. (PL VI., fig. 4, <? ). 

 Angustissimus, postice attenuatus, niger nitidus, antennis articulis 

 3 terminalibus laste fulvis. Caput totum nitidum, discrete sat dense 

 punctatum, rostro mediocriter elongate. Thorax medio vix per- 

 spicue dilatato, lateribus fere rectis, sparsius discrete punctatus, 

 linea dorsali laevi. Elytra postice valde attenuata, passim asqualiter 

 et discrete punctulata punctis tenuitcr griseo-piliferis, dorso basali 

 et disco nuUo modo depressis, apice utrinque medio longo uni- 

 spinoso. Subtus fere laevis, politus. <? . Ventris segmentum 

 apicale elongatum, profunda longitudinaliter concavum ; $ postice 

 paullo minus attenuata, ventris segmento apicali brevi apice tri- 

 angulariter excisa. Long. 12 — 16 millim., <? ?. 



