EDWARDS— DIPTER A, TIPULID^ 197 



first description (of Limonia) is totally inadequate, and, moreover, Meigen states that 

 the antennte are 16-jointed, which is not the case in the typical species of his Limnohia. 

 Thus there seems no necessity to reject this well-established name. Eriocera is used 

 in preference to Caloptera or Evanioptera ; Caloptera was published without description ; 

 Evanioptera, as far as I can ascertain, two or three months later than Eriocera. 



Sub-fam. Limnobiinae. Group Limnobiini. 

 Genus DiCRANOMYiA Stephens, Cat. Brit. Ins., ii. 243 (1829). 



1. Dicranomijia tipulipes Karsch, Ent. Nachr., xii. 51, 1 (1886). (Plate 10, fig. 1, 

 wing; plate 11, fig. 1, $ genitalia.) 



Length $ body 5 mm., $ body 6 mm. 

 „ ,, wing 6 mm., ,, wing 7 mm. 



These specimens are smaller than the type, as Karsch gives a wing measurement of 

 8 "5 mm. They also differ in the absence of a yellow margin to the median band of the 

 thorax, and in the fact that the 6th longitudinal vein is not markedly paler than the rest. 

 It is possible therefore that they may prove eventually to be distinct from D. tipulipes. 



I have failed to find any real difference between D. tipulipes Karsch, and D. 

 consimilis Bergroth, by comparing the descriptions, and think it probable that they and 

 the Seychelles specimens are merely forms of one species. The chief distinguishing 

 character given by Bergroth, viz., the length of the small cross-vein, is variable in the 

 specimens before me ; in three the submarginal cell and discal cell actually touch ; in the 

 others there is a short cross-vein separating them. The present specimens all have a 

 blackish spot at the base of the basal cells, which is mentioned by Karsch but not by 

 Bergroth. Karsch's statement that D. tipulipes has 15-jointed antennaj is probably a 

 mistake ; in all the Seychelles specimens the antennae are normal. Karsch does not 

 mention the blackish tips of the tibiae. D. tangentialis Speiser, from Kilimandjaro, is also 

 very closely allied, though perhaps distinct. 



Loc. Seychelles. Silhouette : Mont Pot-a-eau, 2 ?. Mahd : Foret Noire, 1 ?; Mare 

 aux Cochons, about 1500 feet, 1 ? ; Cascade Estate, 800—1500 ft., 1 ^, 1 ?. Also South 

 Africa : Pungo Andongo (Karsch) ; Cape Town (L. P(5ringuey) ; Caffiraria {D. consimilis 

 Bergroth). 



2. Dicranomyia gardineri, sp. n. (Plate 10, fig. 2, wing; plate 11, fig. 2, $ 

 genitalia.) 



Cinereo-fusca, thorace fusco-trilineato, alls parum infuscatis et maculatis, venula 

 transversa parvS., brevi. 



$%. Head: antennae dark, joints about as long as broad. Thorax greyish, a 

 median and two smaller lateral brown stripes on mesonotum before suture, two brown 

 spots on mesonotum behind suture. Legs testaceous, tips of femora and tibi.-e indistinctly 

 darker. Wings faintly fuscous-tinged ; dark spots at base of basal cells, at base of 

 prtefurca, and on the marginal cross-vein (the stigma) ; sometimes also on first longitu- 

 dinal and at apex of prajfurca. Veins dark ; first longitudinal sometimes paler. 



