28 STRATIOMYIDJE. 



8. Acanthina argentihirta, Bran. (PL I, fig. 4.) 



Acanthina aryenteu, Brimetti, Ifec. Ind. Mus. i, p. 132 (1907) ; 

 emended in Corrigendum slip of same date to argentihirta 

 (aryentea preocc. Ost.-Sack. 1880). 



3 . Head with eyes extending whole height of head, shortly but 

 not thickly pubescent, subcontiguous at nearest point of approach, 

 as the froiis at this point is receding, but attains the surface of 

 the eyes towards the vertex, which is considerably raised, occupied 

 by the ocelli ; facets rather large, of uniform si/e ; frons both 

 above and below nearest approach of eyes, shining white; occiput, 

 underside of head, and inner orbit of eyes below antennae white. 

 Antenna? with first two joints black, 3rd reddish brown with 

 blackish marks ; style thick. Proboscis shorr, yellowish, with a 

 few hairs. Thorax with dorsum, sides, and .scutellum black, 

 uniformly covered with short silvery-grey pubescence ; scutellum 

 with four rather large whitish spines. Abdomen black, with short 

 silvery-grey pubescence ; venter Mack, with short grey hairs. 

 Le</s yellowish white ; femora black, extreme base and tips pale ; 

 tibiae with a broad black band, leaving only the basal fourth and 

 the tip pale. Winr/s quite colourless, veins distinct, pale ; no 

 stigma apparent ; squama? very small, brownish white ; halteres 

 brownish yellow, clubs white. 



Length, 3 mm. 



Described from a perfect J in the Indian Museum, from 

 Calcutta, 22. v. 1907 ; Itangoon, 18-30. ix. 1914 (Fletcher). 



Genus CRASPEDOMETOPON, Kert. 

 Craspedometopon, Kertesz, Ann. Mus. Hung, vii, p. 373 (1909). 



GENOTYPE, Craspedometopon frontale, Kert. 



Head hemispherical ; eyes bare, contiguous in J for a consider- 

 able distance ; upper facets larger than lower, no distinct dividing- 

 line ; in 5 , frons -i- of head, sides parallel, bare, shining ; a narrow 

 ridge on each side close to eye-margin, continued at vertex 

 around upper corners of eyes and gradually disappearing, con- 

 tinued downwards to some little distance above base of antenna?, 

 meeting a similar transverse ridge ; a median ridge in centre of 

 frons, dying away at. upper and lower extremities, and an oblong 

 depression with pointed lower end just above antennae ; face 

 retreating; mouth-opening large ; occiput slightly concave, shortly 

 pubescent. Proboscis with large labella; palpi 2-jointed. a little 

 shorter than labella; 1st joint rod-shaped, 2nd long elliptical. 

 Antenna) placed on lower part of head, smaller in J than $ ; 

 1st joint cup-shaped, contracted beyond base; 2nd cup-shaped; 

 3rd subconical, with seven distinct aunulations and a very long 

 terminal pubescent arista. Thorax robust, narrower in front 

 than head, broader than head behind, finely punctate ; dorsum 

 arched, suture distinct, broadly interrupted in middle ; scutellum 

 flush with dorsuro, large, arched, hind border truncate, with four 

 strong equidistant spines: sometimes an extra pair, or occasionally 

 five spines asymmetrically placed. Abdomen 5-segmeuted, robust, 



