194 PROCEEDINGS OF THE ACADEMY OP [Part II 



representing 23 genera and 32 species, of which 3 genera and 9 

 species are new. Though large, the collection probably includes 

 only a small percentage of the Blattidae to be found in French 

 Guiana, one of the richest regions of tropical South America. 



Among the new species, most remarkable and interesting are; 

 Sciablatta poecila, Leuropeltis atopa, Zetohorella gemmicula and 

 Oulopteryx dascilloides. The large Panchlorid, Schizopilia fissi- 

 collis, is one of the most interesting species of the region, due to 

 the extraordinary pronotal specialization. This species appears 

 to be rare in collections. 



ECTOBIINAE. 



Anaplecta maronensis new species. Plate IX, figure 3. 



This minute insect agrees closely with A. cabimae Hebard in size 

 and form; differing in the buffy pronotal disk with large prouts 

 brown suffused area above the head, buckthorn brown and conse- 

 quently distinctly less tawny tegmina and decidedly longer appen- 

 dicular field of the wings. 



Type : 9 : La Forestiere, Upper Maroni River, French Guiana. 

 [Paris Museum.] 



Size very small, form slender for the genus. Head scarcely longer 

 than broad ; vertex evenly convex, without distinct ridges over the 

 antennal sockets; ocellar spots subobsolete. Pronotum approach- 

 ing oval, the caudal margin showing no more truncation than the 

 mesal portion of the cephalic margin, very feebly obtuse-angulate 

 convex; surface weakly convex, with no trace of discal sulci. Teg- 

 mina extending a brief distance beyond apex of abdomen, narrow; 

 costal margin very feebly convex to near the apex, where it bends 

 more sharply to meet the sutural margin, which is almost straight, 

 apex sharply rounded; costal veins inconspicuous, not numerous 

 ( 8 ), with a few spurious intermediate veins distad; discoidal sectors 

 two in number. Wings not broad; costal veins simple, subobsolete 

 in clouded area ( 4 to 5 ), combining with the similar distal veinlets 

 (4 to 5), which also spring from the discoidal vein as it curves to 

 meet the median vein at the distal extremity of the medio-discoidal 

 area; medio-discoidal area, before this point, without transverse 

 veinlets; appendicular field in length about four-fifths that of re- 

 maining portion of wing, length appreciably greater than width. 

 Supra-anal plate roundly produced, showing scarcelyanyangulation. 

 Subgenital plate of the valvular type characteristic of the genus. 

 Ventro-cephalic margin of cephalic femora with a single very slender 

 and elongate proximal spine, succeeded by a row of microscopic, 

 very short, rather closely set spinulae, terminated distad by two 

 very slender spines, very elongate in increasing ratio distad. Other 



