Longkornia of Mexico diul Central America. 177 



Tylosis dimidiata, n. sp. (PI. VIL, fig. 13, ^ ). 

 Fere cylindrica, nigra subtus polita, Ioukg et inintis dense erecte 

 pilosa, elytris dimidio basali Havo-testaceo, dimidio apicali uigro 

 antice apiid suturam angulatim producto. Caput et thorax grosse 

 subalveolatim punctati, hie oblongo-ovatus, calHs discoidahbus 

 duobus Hneaque abbreviata mediana kevibus. Elytra passim 

 densissime sat fortiter punctata, apice rotundato. Subtus cum 

 pedibus punctata. Long. 7— 11^ miUim., <? ? . 



Hah. Mexico, Temax in North Yucatan (Gaumcr). 



A distinct species, agreeing in all structural characters 

 with the typical Tyloses. 



Tylosis angusticollis, Bates, Biol. Centr.-Amer., Col., v., 



p. 325. 

 Herr Hoge has since obtained a large scries of this 

 supposed species, which shows all gradations in form of 

 thorax between it and T. jmncticoUis. It must therefore 

 sink into a synonym or variety of that species. The 

 insect was met with at Matamoros Izucar in Pucbla, 

 Tacambaro in Michoacan, Durango City, and at Colima 

 City, Tonila and Zapotlan, in the State of Colima. 



Crossidius militaris, n. sp. (PI. VIL, fig. 14, J ). 

 C. cliscoidco (Say) quoad colores simiHs sed niulto major. Fere 

 cyhndricus, dense piloso-punctatus, opacus, coccineus; capite, 

 thorace rnarginibus anticis et posticis, elytris ad basin anguste 

 plagaque magna posteriori communi elongata in medio basin versus 

 extensa, antennis, pedibus et sternis (prosterno ante coxas rutb 

 excepto) cicrulescenti-nigris. Thorax omnino rotundatus, inermis, 

 absque callis, grosse confluenter punctatus ; interdum nuiculis 2 vel 

 4 nigris. Elytra discrete apicem versus deusius et subtilius punc- 

 tata, sinuatim truncata, augulis plus minusve distinctis. Auteuniu 

 3 corpore multo longiores, distincte appendiculatui ; ? corporis 

 dimidium vix attingentes. Long. 14—19 millim., 3 ? • 

 Hah. Mexico, Villa Lerdo in Durango {ILxje). 

 This fine species appears to be much less variable in 

 colour-pattern than other species of the genus. 



Crossidius palmeri, Bates, Biol. Centr.-Amer., Col., v., 



p. 81. 

 Herr Iloge has since met with this species in con- 

 siderable numbers at Baltiilo in Couhuila, and Monterey 



