MYCOTKETUS. 51 



This insect is very nearly related to M. lepidus, but the spots on the thorax are very 

 distinct and constant, though the one on the head is not always present ; in addition 

 the black spot near the base of the elytra is twice indented before and behind (in 

 M. lepidus there seems to be usually one notch in front), the posterior patch is less 

 produced up the suture and placed more behind, and the elytral striae are deeper. 

 Numerous specimens were captured by Mr. Champion at Bugaba, and a few were found 

 at 2000 to 3000 feet elevation on the Volcan de Chiriqui. 



10. Mycotretus normalis. 



Oblongus, ovatulus, saturate ruins, capite prothoraceque crebre sat fortiter punetatis ; elytris punctato-striatis, 

 macula magna basali subrotundata, fascia mediana alteraque subapicali marginem haud attingente, 

 nigris ; scutello piceo. Long. 6 millim. 



Edb. Mexico, Cordova {Edge). 



Eather elongate and parallel, the head and thorax spotless, rather strongly punc- 

 tured; antennae rufous, with five joints at the apex black; elytra longer than in 

 M . fasciolatus, with a large spot on their base just reaching the humeral callus, not 

 touching the scutellum, a common median fascia not reaching the lateral margins, and 

 a subapical common lunate fascia before the apex. Legs and underside yellow. A 

 very puzzling insect, looking like a variety of some other species, but no doubt 

 distinct, of which there is only one rather discoloured example in Hoge's collection. 



11. Mycotretus lsDviventris. 



Mycotretus lesviventris, Crotch, Cist. Ent. i. p. 454 \ 

 Edb. Mexico \ Toxpam {Salle). 



Thorax with six punctiform spots. Elytra with two large fascia-like black patches, 

 the hinder one somewhat heart-shaped : neither of them touch the suture or margins. 

 The type is in the Cambridge collection. Four specimens of this species in Salle's 

 collection are labelled with the MS. name of M. parilis, Chevr. 



12. Mycotretus ternotatus. (Tab. III. fig. 13.) 



Oblongus, leviter ovatus, flavus, pectore piceo, antennarum articulis sex ultimis, verticis macula rotundata, 

 prothoraeis macula discoidali punctisque duobus, elytrorum lunula baseos fasciaque late pone medium 

 valde indentata, nigris. Long. 6 millim. , 



Eab. Mexico, Jalapa (Edge). 



The only species known to me which has the thorax similarly marked to this insect 

 is M. signatellus, Crotch. The large central spot on the thorax, with a smaller one on 

 each side, and the large spot on the head, will separate this species from any other of 

 this genus. The antennae have five joints at the base yellow. The elytra have the 

 suture and lateral limb very narrowly piceous ; the basal mark is bilobed, somewhat 



E*2 



