HYPERALONIA. 183 



scales on each side of the middle on 6th and 7th segments ; at 

 sides of 1st segment a bunch of bright orange elongate scales, 

 sides of the remaining segments with long black bristly pubes- 

 cence. Venter blackish, with very short black pubescence ; 

 towards middle of hind margin of most of the segments are some 

 small bright yellow scales and a median band, not attaining tip 

 of abdomen, of long, fine hairs of similar colour ; genitalia 

 concealed, apparently much as in H. jlaviventris. Legs black ; 

 fore femora and tibiae with soft pubescence, posterior pairs with 

 black bristles ; all femora with closely applied minute black 

 scales ; tarsi with short black pubescence ; general vestiture of 

 legs much as in H. pZaviventris. Wings wholly dark brown, with 

 a distinct violet tinge ; alulae and alar squamae as in H. jlaviventris ; 

 halteres dull brown. 



Length, 13-20 mm. 



Bedescribed from several specimens in the Indian Museum : 

 Sikkim ; Bhitn Tal, 22-27. ix. 1906 (Annandale) ; Java; Kina 

 Balu, Borneo ; Moluccas. 



Type in the Frankfort Museum. 



Jaennecke's original description of this species is wonderfully 

 accurate. It may be recognised by the trio of characters, the red 

 1st antennal joint, the yellow stripe of hairs on the venter, and 

 the wholly black legs. 



137. Hyperalonia flaviventris, Dol. 



Anthrax jlaviventris, Doleschall, Nat. Tijd. Ned. Ind. xiv, p. 400 



(1857). 

 Hyperalonia jlaviventris, Osten-Sacken, Berl. £nt. Zeits. xxvi, 



p. 112 ; Brunetti, Rec. Ind. Mas. ii, p. 441 (1909). 



S 2 • Head with frons above antennae one-third of the width 

 of the head, narrowing to half this width at the vertex, dull 

 mouse-brown, clothed with rather numerous short erect black 

 hairs, with some small narrow yellow scale-like hairs intermixed, 

 the latter preponderating on lower part ; ocellar triangle dull 

 reddish brown ; face orange, liberally besprinkled with short blacl* 

 hairs and some soft golden-yellow hairs around mouth-opening; 

 lower part of head immediately below eyes (where it joins the 

 occiput) yellowish white, bare. Antennae reddish brown ; 2nd 

 joint barely half as long as 1st, both with black bristles : 3rd joint 

 elongate conical, bare, nearly as long as 1st and 2nd together, and 

 with a style three-fourths as long as the joint, bearing a micro- 

 scopic apical appendage. Proboscis blackish brown, with large 

 reddish-brown labella, slightly pubescent. Occiput much puffed 

 out, mouse-brown, covered with small narrow bright yellow 

 scales or scale-like hairs, closely affixed ; posterior edge o 

 occiput with a fringe of light yellow hairs. Thorax blackish, with 

 sparse short blackish hairs ; anterior margin with dense, long, 

 nai'row, bright fiery reddish-orange scales, and dense bunches of 

 similar orange scales or scale-like bristly hairs occur below the- 



