STYGIA. By Dr. A. Seitz. 427 



$ being pectinated instead of serrate. Altogether lighter, more brownish, discocellular of forewmg deep black, 

 fringes not so deeply chequered. From Turkestan. — magna Stgr. i. I. (52 k) is distinctly larger, with broader magna. 

 wings, more dusty grey. 



D. bucharana Bang-H. (55k) differs but little from agilis, only being somewhat larger, with the mark- huclmrana. 

 ings more prominent. 



D. clathrata Christ. (55 k) differs very little from the form tristis, but there is an additional small light cMhraiu. 

 spot beyond and below the light wedge-shaped cell-patch of the forewing. Also from Turkestan. The fringes of 

 this species are narrower and less distmctly chequered. — tristis Bang-H. is considerably smaller, and so IruUs. 

 coloured and marked that it might be called a form oi lacertula. — The last thi'ee forms are Central- Asiatic 

 and partly more abundant than agilis. 



D. nigritula Stgr. was described from a damaged (J from Trans-Alai. 22 mm (the size of a moderate nigriiula. 

 ulula). Wmgs semitrausparent, black, forewmg with very obsolescent light white markmgs. At the apex a small 

 spot, below it another, and some white markmgs extending from the outer and costal margms. Underside lighter, 

 darker towards the margin. Hmdwing semitransparent with blackish veins and margm ; tips of fringes whitish. 



D. minima Bang-H. i. I. (52 k). Herr Bang-Haas has sent me under this name some specimens which are minima. 

 apparently a dwarfed form of the lacertula-agilis group. They are at once recognisable by their much reduced 

 size, which scarcely equals that of uhiki algeriensis. Moreover, the forewing is luiiformly dusty grey, the markings, 

 of which the light wedge of the cell and the shadowy spot above the middle of the inter-margin can be distinguish- 

 ed, are obsolescent; hmdwmg with light basal area. — The locality is given as ,,Dehibat". 



D. argaeensis Rebel, from Erdchias-Dagh, caught in July. Unknown to me ui nature. Very like certam anjaeensis. 

 specimens of the variable ulula-infuscata $, but according to Rebel the antennae are shorter and the abdomen 

 is blackish brown. Also resembles the Algerian fusculn Stgr. (52 k), but is distinguished from this by the dark 

 brown abdomen and by the forewing beiiag entirely without markings. 



D. taurica Rebel has been described as a doubtfully distinct species, and is said to be very like argae- (aurica. 

 ensis. Wings and abdomen as in the preceding, but the thorax bright brown with 2 light stripes. — From 

 the Bulghar-Dagh. Unknowni to me. 



D. monticola Gr.-Grsh. (52 i). A large species. Forewing, as shown by the figure, bearing white spot on a monticola. 

 smoky greyish brown ground at the costa and middle of hind margin, and with a dark halo around the white 

 discocellular spot. Hindwing dark greyish brown, lighter before the hind margin ; fringes chequered. The thorax 

 with white hairs m front and behind. — From Ferghana. 



D. cossoides Gmes. (52 i). I figure the t^qse ex coll. Pungeler. Grae.ser's description was evidently cossoides. 

 written without reference to the other forms of Dyspessa and therefore scarcely mentions the chfferences. Con- 

 sidering the great variability of the species of Dyspessa (cf . figures of ulula typica and algeriensis, plate 52 k 

 and i) I think the important points are the large size, the uniform dull greyish brown colour, the very in- 

 tricate markings which are much broken up and show hardly any regular pattern, and the abdomen of the larger 

 9, which is remarkably long and has a very long ovipositor. — From Issyk-kul. 



D. asema Pwrigr. (52 i). Our figure, taken from the type, is very exact. The species is characterised above osema. 



all by the dark markings being composed of coarse grauis on the whitish ground-colour, which is only visible in 

 small and scattered patches, and giving the forewing of the insect the appearance of being sprinkled with sand. 

 As suggested by the author, the whitish clouds are perhaps the result of the scalmg havuig become worn during 

 flight, being more or less covered over by dark scales in fresh specimens. — From Askhabad and Turkestan. 



D. jordana Stgr. (55 1). This form already stands apart m the genus, m which the Staudinger and Rebel jorduna. 

 catalogue places it, and like asema inclines towards the preceding group. On the whole, jordana strongly resem- 

 bles asema. Abdomen and hindwmg almost the same in colour but more lightly shaded ; forewing more uniformly 

 dull ivory, with the markmgs as m the figure, which however does not show the peculiar silvery gloss extendmg 

 over the forewing and the almost white thorax. Syria. — The western form, from Mauretania, is .somewhat 

 more strongly shaded, and has sharper markings; this is suavis Stgr. — A similar form also occurs in Egypt, siuivis. 

 which was caught at the lamp by A. Andres in the Mareotis desert. 



9. Genus: Stygia Latr. 



Mostly small moths with the facies of Dyspessa or often much smaller, almost resemblmg small Psychi- 

 dae. Antemiae very variable, sometimes with long pectmations even in the $; palpi strong, frons shaggy. 

 Thorax and abdomen with long hair, but the hair usually rubbed off in the very restricted number of specimens 

 found of some species in collections. Abdomen of $ long and pointed, tapering into the projecting ovipositor, in 

 the iS withsligtht (bu often injured) anal tuft Hind tibia with two pairs of spurs. Wings entirely or for half 



