440 



PSYCHE. 



' November— December 1890. 



Gymnes (-yvftyTis*) gen. nov. 



Body rather slender, compressed. Head 

 relatively rather large, no broader beneath 

 than above, as a whole nearly twice as high 

 as broad, when viewed in front; vertex gent- 

 ly convex, transversely and longitudinally, 

 the curve of the latter terminating at the 

 front edge of the eyes, in front of which the 

 fastigium is horizontal ; the latterdeeply and 

 broadly sulcate with distinct bounding walls 

 Avhich are parallel on the hinder, convergent 

 on the front half, the front strongly rounded ; 

 a median carina runs through the entire 

 length of the fastigium, most distinct on the 

 anterior half; face subdeclivent, more strong- 

 ly in front of the eyes than below, the upper 

 part of the frontal costa forming with the 

 fastigium of the vertex less than a right 

 angle; frontal costa rather narrow, pinched 

 at extreme summit to a mere lamina, below 

 subequal, slightly contracted immediately 

 below the ocellus, slightly sulcate through- 

 out except on the lamina; lateral carina 

 straight, sharp, regularly divergent, extend- 

 ing to the edges of the clypeus ; lateral ocel- 

 li situated midway between the antennae and 

 the upper corner of the eyes, the fastigia fac- 

 ing more outward than downward or for- 

 ward. Eyes twice as high as broad, consid- 

 erably longer than the infraocular portion of 

 the genae. Antennae very short, only as long 

 as the head and half the pronotum, moder- 

 ately stout, all the joints beyond the second 

 excepting the apical equal, pretty strongly- 

 depressed, punctate, the apical joint half as 

 broad, bluntly conical. 



Prothorax with the prozona and metazona 

 of subequal length, the former of equal width, 

 rounded subtectiform transversely, the latter 

 tumid and tapering forward considerably; 

 median carina slight but distinct throughout, 

 somewhat subdued on the posterior half of 

 the prozona ; lateral carinae on the metazona 

 only terminating at the normal sulcus; two 

 slight but continuous and gently sinuate 



* In allusion to the very short subensiform antennae. 



transverse sulci on the prozona. the anterior 

 not passing into the lateral lobes ; these have 

 the anterior and posterior margins straight, 

 slightly convergent, the lower posterior an- 

 gle rectangulate but rounded, the lower mar- 

 gin horizontal, barely inclined upwards 

 anteriorly, so that the plate below is scarcely 

 at all exposed. Metasteinal lobes transver.<e- 

 ly quadrate, scarcely nearer together than 

 the mesosternal lobes (9). Tegmina 

 slender, slightly tapering, scarcely coriaceous 

 excepting at the extreme base where only the 

 reticulation is at all dense, being elsewhere 

 very open. Mediastinal area almost entirely 

 free from cross nervures or reticulation of any 

 kind except apicallv; intercalary vein pies- 

 ent, discoidal vein unbranched. axillary 

 vein impinging on the anal. Wings not 

 large, simple and normal. Hind legs long 

 and slender, the superior and inferior carinae 

 of the femora well developed; hind tibiae 

 with a dozen spines in the exterior row; cal- 

 caria moderately long; basal joint of hind 

 tarsi not more than twice as long as second. 



A single species is at hand. 



Gymnhs punctatl's sp. nov. 



Pallid, apparently yellowish green in life. 

 Almost entirely immaculate, the only dark, 

 markings of the body being the obscure 

 brownish fuscous median carina of the pro- 

 notum. and the blackish fuscous posterior 

 third of the metazona. Tegmina with six or 

 eight small, roundish, brownish fuscous 

 spots arranged by pairs transversely at toler- 

 ably regular intervals beginning at the mid- 

 dle of the basal half. Wings very delicate, 

 translucent. Hind femora with slight nar- 

 row^ infuscations beyond the middle and at 

 tip; spines of hind tibiae black-tipped. 



The surface is generally nearly smooth, 

 and a little lustrous on the pronotum which 

 is also feebly and rather delicately punctate 

 especially on the metazona, the lateral lobes 

 being quite smooth on the prozona : the sides 

 of the head are also feebly subrugose but 



