140 Eev. T. A. Marshall's monograph of 



immarginatum ; post-scutellum hand elevatum. Metathorax reti- 

 culatus, in longitudinem bis terve cariuulatus, obtuse bidenticulatus. 

 Maris rima aualis fere orbicularis ; feniinae terebra conspicienda 

 quidem, sed anum baud attingens, recta, valvulis compressis, 

 testaceis, pilosis. 



Black ; abdomen immaculate ; palpi blackish ; mandibles tipped 

 with rufous ; fore legs testaceous, their femora black at the base ; 

 posterior legs black, their tibiae obscurely rufous, the hind pair 

 fuscous at the base and apex ; tarsi fuscous. Wings fumato-hyaline, 

 nervures and stigma pale fuscous, parastigma and costa darker ; 

 squamulcE fuscous ; radial areolet larger than the stigma ; 3d 

 abscissa straight ; radius of the hind wings sinuated. Body dull, 

 minutely scabrous, and sparingly beset with grey pubescence. 

 Head subcoriaceous, subcubical, not contracted behind the eyes, 

 cheeks dilated ; clypeus almost smooth ; frontal fovea minute, 

 obsolete. Antennae (? 23-, $ 16-jointed. Mesothorax punctulate, 

 subcoriaceous. Scutellum not margined ; post-scutellum not 

 elevated. Metathorax reticulated, with 2 or 3 longitudinal raised 

 lines, bluntly bideuticulate. Abdomen as long as the head and 

 thorax, of the c^ slightly widened and obtuse behind, of the 5 elhp- 

 tical ; finely reticulated at the base, afterwards punctulate ; basal 

 carina none. Anal aperture of the ^ nearly circular ; terebra of 

 the $ visible, but not reaching the anus ; valves testaceous, com- 

 pressed, hairy. $ ? . Length, 1^ ; wings, 2^ lin. 



This species differs from C. parcicornis, Schaff., in the 

 number of joints of the antennae ; from sulcatus, Nees, 

 in its more slender form, dilated cheeks, and longer 

 antennae ; from latrunculus, n. s., similarly, and also in 

 the colour of the legs. 



Described from two males and a female, which were 

 bred, June 5tli, by Warren from Cosmopteryx Lieniqiella, 

 Zell. 



18. Chelonns hasalis, Cur. 



Chelonus hasalis, Cur., B. E., 672, No. 8, ? . 



Black ; basal third of the abdomen determinately testaceous ; 

 legs black ; fore femora at the apex, their tibiae, and the base of the 

 hiud tibiie, testaceous. Wings fuscescent, nervures and stigma 

 fiiscous ; radial areolet, &c., as in the other small species. An- 

 tenna; $ 16-jointed, stout, shorter than the body, incrassated before 

 the apex. Body dull, minutely punctulate, pubescent. Meta- 

 thorax bidenticulate, and with two medial longitudinal carinas. 

 Terebra concealed. J . Length, f ; wings, 1^ lin. 



