528 
ZOOLOGICAL LITERATURE. 
Family Psocina. 
Division 1. Atropina, Ocelli 0. 
I. Tarsi triarticulate. 
A. Meso- and metatliorax connate 1. Atropos (Leach). 
B. Meso- and metatliorax free, 
a. Anterior wings coriaceous, rudimentary. 
2. Clothilla (Westw.). 
b. Anterior wings membranaceous . ..... 3. Psoquilld (Hag.). 
II. Tarsi biarticulate 4. Lachesilla 
Division 2. Psocina. Ocelli 3. 
I. Wing-veins rudimentary 5. Pmbidopsocus (Hag.)h 
II. Wing-veins distinct. 
A. Anterior wings scaly. 
a. Beticulation irregular 6. Ampliicniomum (Piet.). 
b. Reticulation regular. 
». Anterior wings ovate 7. (Hag.). 
/3. Anterior wings appendiculate .... 8. Syllysis (Hag.). 
B. Anterior wings hyaline. 
a. Prothorax free. 
a. Wings acuminate 9. Thylax (Hag.). 
/3. Wings ovate 10. Empheria (Hag.). 
b. Prothorax obtected. 
a. Tarsi 3-articulate. 
1. Discoidal area closed 11. Myopsocus (g. n.)^. 
2. Discoidal area open 12. Elipsocus (g. n.)^. 
/3. Tarsi biarticulate. 
1. Joint 3 of antennse slender, 
aa. Reticulation simple. 
* Pterostigma free. 
t Discoidal area closed .... 13. Psocus (Lat.). 
tt Discoidal area open. 
— Posterior area elliptical. 
14. Ccecilms (Curt.). 
= Posterior area elongate, 
Furca regular 15. Epipsocus (g. n.) h 
Furca irregular .... 16. Polypsocus (g. n.)^. 
= Posterior area 0 17. Peripsocus (g. n.)®. 
* * Pterostigma not free 18. Stenopsocus (g. n.)’’. 
^ This genus is omitted in the alphabetical synopsis. 
^ Sp. Psocus luyens and unduosus (Hag.) and J/. rapidus (Hag. MS.). 
® Sp. Ps. hoops, impressusjpumilus, and siy?iatus (Hag.), conterminus (Walsh), 
Jlavicans (Linn.), and quadrimaculatus (Westw.), and JFIemerohius apMdioides 
(Schr.). 
^ Sp. Psocus ciliatus and debilis (Piet.), delicatus, lanatusy moJestus, pictuSy 
tenei'y and zonatus (Hag.). 
® Sp. Ps. corruptus (tl 2 ig.')-\-abruptus (Hag.) 5* 
Sp. Ps. ceihiopsy madidus, and piger (Hag.), Periq)socus pellucidics (Hag. 
MS.), Ps. alboguttatus (Dalm.), madescens (Walsh), phceoptcrus (Steph.). 
Sp. Ilemerobius ci'uciatus (liinn.) and striatulus (Fab.), Ps. apertus and uni- 
formis (Hag.), and immacidatus (Steph,). 
