the OrtJioptera in the British Museum. 157 



zoidal, with a prominent apical lobe and low median carina, bifurcate 

 basally; with two small chitinous tubercles near the carina, before 

 the middle. Cerci vertical, consisting of a descending, rather thick 

 basal part, and an ascending, thinner apical part, prominent above 

 the supra-anal plate. Subgenital plate small, round. 



$. Subgenital plate with the apex prominent, with two rounded 

 apical lateral emarginations. 



Genotype : Martinezius fernandezi, sp. n. 



This new genus is undoubtedly allied to Plegfnapterus, 

 as tlie reticulation of elytra is practically the same in both 

 these genera, but it strongly differs from Plegmapterus by 

 the above-indicated characters. There are, possibly, 

 some more differentiating characters in the structure of 

 the male genitalia, but the male of Plegmapterus is, as yet, 

 unknown. 



To the genus Martinezius belongs, probably, besides the 

 genotype, Euryphymus sinuosus, M. Fern., which is unknown 

 to me save by description. 



I propose to name this beautiful insect after the first 

 reviser of the group Calliptamini, Mr. Antonio Martinez 

 y Fernandez-Castillo. 



1. Martinezius fernandezi, sp. n. 



(Plate I, figs. 11 and 12.) 



(J. Ochraceous- brown, with brown design and spots; the under 

 side and legs covered with rather long greyish hairs. Head and 

 face brown with greyish marmoration. Pronotum very feebly 

 regulose in the hind part of the metazona; its disc brown, in the 

 metazona of a lighter shade, v/ith indefinite narrow pale lateral 

 fasciae; lateral lobes reddish- brown. Elytra greyish- ochraceous, 

 with numerous small brown spots, rather equally distributed, some- 

 what confluent in the basal part. Wings golden yellow, with the 

 veins and veinlets in the apical half brown, and the apex faintly 

 infumate. Hind femora on the outer side brown, with indefinite 

 dark fasciae on the somewhat paler- coloured upperside ; the inner 

 lower sulcus shining black, this colour extending partly also on the 

 lower part of the inner side which is dirty yellow, merging into red 

 at the apex ; the hind knee unicolorous brown all over except the 

 red inner lobe. Hind tibiae bright red with black tips of the spines. 

 Hind tarsi orange- red. 



Length of body 25-5 mm. ; of pronotum 7 mm. ; of elytra 23 mm. ; 

 of hind femur 14-5 mm. 



