BLATTID^. 15 



4. Alarum campus analis in requiete flabellatim plicatus. Pronotum et elytra glabra ; 

 arolia inter ungues normalia. 

 5. Lamina supra-analis bilobata vel quadrata, plus minus emarginata; abdominis 



segmentorum anguli producti. — PanchlorinjE. 

 55. Lamina supra-analis ? rotundata. Segmenta dorsalia abdominis margine 

 postieo transverso, angulis haud productis. Lamina infra-genitalis $ stylis 

 mox nullis, mox 2 instructa *. — PERisPH.ffiBiNiB. 

 44. Alarum campus posterior baud plicatus vel uniplicatus, sub campo anteriore 

 plane reversus. Pronotum et elytra plus minus pilosa vel fimbriata. Arolia 

 inter ungues minuta vel nulla. — CorydinjE. 

 22. Femora anteriora subtus incrmia vel spinis parum numerosis armata. 

 3. Arolia inter ungues perspieua. — Rhicnoda, Br. (ex parte). 

 33. Arolia inter ungues nulla. Species magna parte grandes. 



4. Lamina supra-analis ? $ plus minus quadrata, incisa. Elytra quando condite 



explicata, marginem abdominis valde superantia. Cerci variabiles. — Blaberin^e. 



44. Lamina supra-analis ? g transversa, rotundata, integra. Elytra abbreviata (vel 



nulla), vel angusta, in requiete abdominis margines liberantia. Cerci brevissimi. 



— PANBSTHINi®. 



Tribus ANAPLECTIN^E f. 



Ectobidm, Brunner de Wattenwyl, Syst. Blatt. p. 52. 

 Ectobites, Saussure, Miss. Scient. Mex., Ortbopt. p. 11. 



Synopsis generum. 



1. Elytra coriacea. Alse perfecte explicate. 



2. Alarum campus replicatus parvus, triangularis, membranaceus, intercalates. 



3. Elytra coriacea, acuminata, vena longitudinali unica, venis reliquis obliquis in vena 

 longitudinali pectinatis. — Ectobia, auct. 

 33. Elytra subcoriacea, apice rotundata, venis longitudinalibus mediis 2, venis campi dis- 

 coidalis longitudinalibus vel parum obliquis. — Theganopteryx, Br. 

 22. Alarum campus replicatus magnus, rotundatus, in apice alse articulatus, semicoriaceus, in 

 longitudinem plica divisus ; vena ulnari indivisa. — Anaplecta, Br. 

 11. Elytra cornea, abdominis longitudine vel squamiformia. Alse rudimentariae vel nullee. — 

 Aphlebia, Br. 



ECTOBIA, Westw. et auct. 

 1. Ectobia lapponica, Linn, et auct. 



Species vulgaris in toto orbi diffusa. 



* In most species we find 2 styli, which are sometimes a little unequal. Rarely we find only 1, but in 

 these cases the other is certainly broken off, the point of insertion being easily seen. A few species seem to 

 have no styli, or if present they are very small and difficult to make out. 



t Vide infra, observations 1 and 2, under the Tribe Plectopterinse. 



