Longicornia of Mexico and Central America. 157 



16 millim. The two oblique dark fasciae of the elytra 

 are often irregular, and crossed by a longitudinal line 

 down the middle of each elytron. 



Distenia haqei, Bates, Biol. Centr.-Amer., Col., v., 

 p. 271, tab xix., figg. 16, 17. 



Two examples taken by Mr. H. H, Smith at Amula in 

 Guerrero, alt. 6000 ft., show a further variation in 

 colours in addition to that described : the apical fourth 

 of the elytra is wholly fulvous (nearly as in the var., 

 fig. 17), the median fascia, of the same colour, is broad 

 and dentate, widening on the side and terminating 

 before the suture, and there is a third similar fascia 

 close to the base (which is black), including the humerus 

 and reaching the suture, the tawny-red colour continuing 

 along the suture to the apex. The femora are wholly 

 black ; the antennte tawny-red. The apex of the elytra 

 is exactly as in the type-form, briefly truncate, with the 

 sutural angle alone produced, 



Distenia trifasciata, n. sp. (PI. VI., fig. 1, var.). 



D. hce.gei (Bates) affinis, sed differt, inter alia, elytris apice prope 

 suturam acute bidentatis et breviter sinuatis. ^nescenti-nigra, 

 erecte pilosa, elytris fasciis latis subrectis tribus suturam baud 

 attingentibus griseo- vel fulvo-griseo tomentosis. Antennis fulvo- 

 rufo-testaceis, griseo-pubescentibus, scapo curvato-clavato, fere 

 nigro ; pedibus piceo-rufis, femoribus clavatis, clava nigro-aenea. 

 Caput discrete punctatum, vertice fere laevi. Thorax sicut in 

 D. undata 5-callosus, laevis, partibus depressis punctatis punctisque 

 minutis intermixtis, tuberculo laterali conico, acuto, subelevato. 

 Elytra a basi usque ad jjiedium grosse striato-punctata, spatio lato 

 basali inter strias suturalem et 2dam crebre confuse punctato. 

 Subtus fere Isevis, polita. Long. 15 — 22 ujillim. 



Var. Antennis toto fulvo-rufis. 



Hah. Mexico, Jalapa, Acapulco (Iloge), Temax in 

 N. Yucatan {Gaumer). 



The small example (15 miUim.) from Acapulco differs 

 from the others in the apex of the elytra being widely 

 sinuate-truncate, with the angles acute and equal ; it is 

 a <? . In the others (both sexes) the elytra, which are 

 gradually narrowed, as usual in Distenia, from the base, 

 are rapidly narrowed in a curve near the apex, and the 



TRANS. ENT. SOC. LOND. 1892. PART II. (MAY.) N 



