South African and Oriental Asilinae. 189 



Moustaclie yello^y ^'\i\\ two or more black bristles near 

 the oral opening. 



Legs darker tlian in PJiUodicus mrridlonalis, sp. n., the 

 femora and tibiae being very dull rufous below and on the 

 outside. In the male the bristles are chiefly black ; in the 

 female black and white^ the hind femora with white ones; 

 there are long yellow bristles on the outer side of fore tibi?e 

 in both sexes. Fore femoia on imderside in the male with 

 yellow and black bristles^ in the female with three white 

 bristles. 



Philodicus hospes, Wied. 



Zool. Mag. i. pp. 3, 32, 47 [Asilus'] (1819); Dipt. Exot. p. 207, 44 

 [Asilus\ (1821) ; et Ausszweifl. lus. i. p. 495 [Asilus] (1828) ; 

 Schiller, Verb, zool-bot. Ges. Wien, xvi. p. 689 (1860) ; Roder, Ent. 

 Nachricht. xix. p. 235 (1893). 



This species has been placed in the genus Alcimus, and so 

 appears in Kertesz^s Cat., doubtless owing to the remark by 

 Wiedemann that the transverse vein is very near the base 

 of the first submargin;il cell, which is true ; but it is hardly 

 as close as in species of Alcinms, and the species has all 

 the- appearance and characters of the genus Philodicus, to 

 which it certainly belongs, though Schiuer states that one 

 female he saw in the Winthem Coll. belongs to the genus 

 Alcimvs. The specimens in the Brit. i\lus. Coll. from 

 Ceylon answer to Wiedemann's de>cription, his specimens 

 came from Tranquebar, and Roder records it from Ceylon. 

 The genus Alcinms is, therefore, practically confined to the 

 African Region. 



In the Brit. Mus. Coll. are males and females from 

 Trincomalee and Mahaganay, Ceylon (Yerbury Coll.). 



Philodicus thoracicus^ ^ ? , sp. n. 



Types (male and female in cop.) from Trincomalee, Ceylon, 

 and other males and females (Yerbury Coll.). 



A medium- sized species distinguished by the broad 

 median stripe not divided in the middle. Legs blackish; 

 tibiae rufous, the hind pair darker. Moustache white. 



Length, cJ 27, ? 28 mm. 



Male. — Face covered Avith greyish-white tomentum, silvery 

 at the sides. Palpi with white hairs. Moustache composed 

 of yellowish-white bristles with two or more black ones near 

 the oral opening; the hairs above are white, reaching the 

 base of antennte, ranged on the sides chiefly. Antennce 



