INSECTA. 415 
Rhiacophila Picrer. 
Psychomia LAtr. 
B. tt Maxillary palps (of males) with two to four joints. 
Sericostoma Latr. Maxillary palps in males mostly with two 
joints, in some with three, dilated, villose externally, often veiling 
the head. 
Sub-genera Pogonostoma RamB., Dasystoma ejusd. ; with maxillary palps 
of males three-jointed. 
Sub-genera Trichostoma Pictrer, Lasiostoma Rams., Lepidostoma Rams., 
Sericostoma PicTET: with maxillary palps of males two-jointed. 
Phryganea Pictset. Maxillary palps of males four-jointed, of 
females five-jointed, longer than labial, subpilose. Wings with 
transverse nervures. 
Sub-genera Limnephila LEAcH, Monocentra, Enoicyla, Oligotricha RAMBUR. 
Note.—¥or other recorded genera see WESTWOOD, Generic Synopsis, pp. 
49—51, and BURMEISTER, 1. 1. 
Sp. Phryganea grandis L., Rasen, Ins. 11., Insect. aquatil. Cl. 1. Tab. 
xvill.; De Geer, Mém. 11. Pl. 13, fig. 1 ;—Phryg. rhombica L., (Linne- 
phila L¥AcH); RassEt, ibid. Tab, xvi1.; GERMAR, Faun. Ins. Hurop. Fasc. 
Ix. Tab. 13, &c. 
Family XXIX. Panorpate. Posterior wings expanded. Man- 
dibles distinct. Head with anterior process mostly rostriform ; 
ligula none ; labium and maxille mostly connate at base. Maxillary 
palps five-jointed, labial two-jointed. Antenne filiform, long, mul- 
tiarticulate. 
A. Ocelli three frontal. Wings perfect, reticulate, with longi- 
tudinal nervures numerous, transverse few. 
Bittacus LAtR. Feet elongate, slender, tarsi with single claw. 
Abdomen cylindrical, long. (Habit of Zipula.) 
Sp. Bittacus tipularius, Panorpa tipularia Fasr., C. DE VILLERS, Entomol, 
Iinnean. Tab. 7, fig. 11; Sunzpr, Gesch. der Ins., Tab. xxv. figs. 7, 8; 
GuérIn, Icon., Ins. Pl. 61, fig. 2, habitat in south of Europe. 
Panorpa L. (exclusive of P. hyemalis and Coa). Feet moderate, 
tarsi with two claws, terminated by intermediate pulvillus. Abdo- 
men of males with three posterior segments recurved, last oval, 
globose, forcipate. 
Sp. Panorpa communis (and Pan. germanica) L., Panzer, Deutschl. Ins. 
} Heft 50, Tab. 10; Dumérm, Cons. gén. s. 1. Ins. Pl. 27, fig. 6. The 
