OCR Text |
Show 1899.] FROM BRITISH EAST AFRICA. 421 15. ACR,EA ASTRIGERA, sp. n. (Plate X X V . fig. 5.) d. Allied to A. acara var. barberi, but having the size and general aspect of the largest and brightest examples of typical A. acara; on the primaries the spots of the postmedian series are small and arranged in a regular line (as in A. acrita); the bar crossing the end of the cell has a small spot below it, and exactly resembles that in A. anemosa; the looped submarginal line of A. acara is only represented by two dusky dots beyond the lowest spot of the postmedian series ; the secondaries have no white patch and no black spot on the discocellulars ; the black outer border is as wide as in A. acara, but is more sharply defined aud traversed by a series of pure white dots ; the fringe also is pure white between the veins : on the under surface the differences between this species and A. acara are of the same kind. J. On the road from Machako's to Naugia, 4800 feet, 18th September. 1898. Although this is a beautiful insect in its fresh rosy colouring, I could wish to have seen more specimens before describing it; because, while it is perfectly distinct and well-marked, yet the possession of a female example would have shown whether it should be placed nearer to A. acara or A. anemosa. It appears to come nearer to the former. 16. ACR^A CERASA Hewits. Kikuyu, 6400 feet, 17th July, 1898. L Y C ^E N I D M. 17. POLYOMMATUS BJ'.TICUS Linn. $ , Machako's, 10th July, 1898. '•Emerald-green ova." (R. C.) 18. CATOCHRYSOPS PERPULCHRAHolland( - PECULiARisBogenh.). 2 , Machako's, 3rd July, 1898. 19. TARUCUS PLINIUS Fabr. 2 , Machako's, 26th June, 1898. '* Bright grass-green ova." (R. C.) 20. ZIZERA GAIKA Trimen. S 6 , Machako's, 28th May and 19th June, 1898. "Very plentiful: has to be almost driven off the ground-flies so low." (R. C.) 21. CASTALIUS GREGORII Butler. j J , 2 $ - Machako's, 13th and 24th June, 1898. " By no means common ; three seen in a day's walk." (R. C.) It is satisfactory to find that this species, of which we previously possessed only the type, is quite constant. PROC. ZOOL. SOC-1899, No. XXVIII. 28 |