GONGKOCNEMIS. 417 



2 . Ovipositor sat gracilis, rectus, apice et tumore basali nigris. Lamina infra-genitalis trigonalis, minute 



incisa. 

 <5 . Minor. Pronotum minus fortiter subobsolete granulatum. Segmentum anale bi-incisum, lobo medio 



minuto, rotundato, supra foveolato. Cerci breves, crassi, subarcuati, obtusi, apice tuberculo minuto nigro. 



Lamina infra-genitalis profunde cordiformiter vel trigonaliter acute incisa j stylis longiusculis, leviter 



arcuatis, intus apice baud incrassatis. 

 Var. a. Frons fusco-virescens. — b. Femora antica subtus quadrispinosa. — c. Pronotum utrinque vitta nigra 



notatum. — d. Pronotum unicolor. — e. Tota griseo-testacea, baud fusco-marmorata. Pronotum tenuiter 



sparse granulatum (anne species ?). 

 $ . Long. corp. 35 ; pronot. 7; elytr. 32 ; femor. post. 20*5 ; ovipos. 20 millim. 

 J . Long. corp. 22 ; pronot. 6 ; elytr. 23 ; femor. post. 18*5 millim. 



Hah. Guatemala (Mus. Genavense), Capetillo {Champion). 



The general description is taken from a female specimen from Capetillo. This example 

 Jias the pronotum more strongly granulate than in the male. The last-mentioned sex 

 is easily distinguishable by the emarginate infra-genital plate, this being divided for 

 half its length. G. deminuta resembles G. fissa, but it is much smaller, and the styli 

 are not incrassate at the apex as in that species. 



5. Gongrocnemis fissa, sp. n. (Tab. XX. fig. 4.) 



Magna, fulvescens, fusco-marmorata vel castanea. Frons pallida. Pronotum antice subtiliter granulatum, 

 in medio crassius remote granulosum ; margine anteriore tuberculo nigro instructo ; disco lineis fuscis- 

 notato ; metazona postice plana, laeviuscula, margine postico arcuato, cantbis explicatis. Lobi laterales 

 unicolores vel infuscati. Elytra valde fusco-marmorata, maculis rotundatis pallidis confertim tessellata, 

 venis valde expressis, apice baud acuto. Alae fuscae, in parte media et antica irregulariter parce pallide 

 tessellatae, lineolis et punctis pallidis sicut in G. mexicana notatae. Femora 1, 2 quadrispinosa, postica 

 spinis 7. Tibiae anticae infra foramina marginibus leviter productis; intermediae supra 2-spinos83; 

 posticae mullispinosae ; spinae omnes apice nigrae. 



S . Cerci arcuati. Lamina supra-analis rotundato-trigonalis, sulcata. Lamina infra-genitalis profundissime 

 fissa, stylis longissimis, leviter arcuatis, apice subtumidis. 



<$ . Long. corp. 34 ; pronot. 8 ; elytr. 38*5 ; femor. post. 25 millim. 



Figure : — Fig. 4, the infra-genital plate of the male : s, styli. 



Hob. Guatemala (Oltramare, Mus. Genavense). 



A larger species, approaching G. pallidespinosa, Brunn., but differing from it in having 

 the infra-genital plate divided for two-thirds of its length. The elytra are adorned with 

 pale rounded maculae, which form a sort of mosaic pattern, as in G. pallidespinosa, var. 

 The wings are very slightly tessellated with pale colour. 



Obs. — G. truncatistyla, Brunn., from Brazil, has a divided infra-genital plate, but 

 with short and obliquely truncated styli. 



6. Gongrocnemis bivittata, Brunn. 



Gongrocnemis bivittata, Brunn. v. W. Monogr. der Pseudophyll. p. 166. 

 Hab. Mexico (coll. Bolivar) ; Guatemala {Mus. Genavense). 



biol. cente.-amee., Orthopt., December 1898. 3 Hh 



