158 



UNITED STATES NATIONAL MUSEUM BULLETIN 224 



Palaearctic: Microstylum helenae Bezzi (1915); 

 nigrisetosum Efflatoun (1937); sordidum Walker 

 (1854) ; spectrum Wiedemann (1828). 



Ethiopian: Microstylum acutirostre Loew (1852); 

 afer Wiedemann (1828); appendiculatum Macquart 

 (1847) ; aterrimum Loew (1858) ; atro-rubens Timon- 

 David (1952) ; attenuatum Kicardo (1925) ; barbarossa 

 Wiedemann (1828) ; bloessus Walker (1849) ; braunsi 

 Engel (1932) ; bromleyi Timon-David (1952) ; capense 

 Fabricius (1805) [ = lacteipenne Wiedemann (1828)]; 

 capucinum Bigot (1878); cinctum Bromley (1930); 

 dispar Loew (1858) ; elegans Ricardo (1900) ; elonga- 

 tum Bigot (1878) ; flavipenne Macquart (1846) ; fulvi- 

 caudatum Bigot (1878) ; fulvotibiale Engel (1832) ; gi- 

 gas Wiedemann (1821); glabrum Ricardo (1900); 

 gladiator Bromley (1927); griseum Bromley (1927); 

 gulosum Loew (1858) ; hermanni Ricardo (1925) ; hir- 

 tipes Ricardo (1925) ; hobbyi Bromley (1947) ; ignobile 

 Loew (1857) ; insigne Bromley (1927) ; lambertoni 

 Bromley (1930) ; leucacanthum Bezzi (1908) ; lituratum 

 Loew (1863) ; lucifer Bromley (1930) ; maculiventris 

 Bezzi (1908) ; magnum Bromley (1927) ; miles Karsch 

 (1879) ; mydas Engel (1932) ; nigrescens Ricardo 

 (1900) ; nigribarbatum Bigot (1878) ; nigrimystaceum 

 Ricardo (1925) ; nigritarse Bromley (1927) ; nigro- 

 striatum Hobby (1933) ; nigrum Bigot (1859) ; parcum 

 Karsch (1887); partitum Walker (1851); pauliani 

 Timon-David (1952) ; pedunculata Bezzi (1908) ; pica 

 Macquart (1846) ; pulchrum Bromley (1927) ; rabodae 

 Karsch (1884); remicorne Loew (1863); rubigenis 

 Bromley (1927) ; rubripes Macquart (1838) ; rufianale 

 Macquai-t (1849) ; ruflnervum Macquart (1855) ; rufum 

 Ricardo (1925) ; sagitta Bigot (1878) ; saverrio Walker 

 (1849) ; serranus Walker (1849) ; seguyi Timon-David 

 (1952) ; sessile Bezzi (1908) ; simplicissimum Loew 

 (1852); spinipes Ricardo (1925); spurinus Walker 

 (1849) ; taeniatus Wiedemann (1828) ; tananarivensis 

 Bromley (1930) ; umbrosum Bromley (1930) ; unicolor 

 Ricardo (1925) ; ushdatum Engel and Cuthbertson 

 (1938); validum Loew (1858); varipennatum Bigot 

 (1878); venosum Wiedemann (1821); vespertilio 

 Engel (1932) ; villosum Bigot (1878). 



Oriental: Microstylum albolimbatum Wulp (1899) 

 [ — albolineatwm Wulp (1899)]; amoyense Bigot 

 (1878) ; apicale Wiedemann (1821) ; api forme Walker 

 (1851); balbillus Walker (1849); basalis Brunetti 

 (1928); basirufum Bigot (187S) ; bicolor Macquart 

 (1849) ; brevipennatum Bigot (1878) ; brunnipenne 

 Macquart (1849) \ = brevipenne Wulp (1896), lap- 

 sws] ; dux Wiedemann (1828) [=shalumus Walker 

 (1849), sinen.se Macquart (1838) ] ; erythropygum Bigot 

 (1878); eximkim Bigot (1878); flaviventre Macquart 

 (1849); fulviventre Wulp (1898); haemorrhoidale 

 Bigot (1878); imbutum Walker (1851); incomptum 

 Walker (1857); indutum Rondani (1875); indutum 

 nigricorne Enderlein (1914) ; libo Walker (1849) ; mel- 

 anomystax Enderlein (1914) ; nigricauda Wiedemann 

 (1824) ; nigrinum Enderlein (1914) [=nigrum Bigot 

 (1878) not Bigot (1S59)] ; nitidiventris Bigot (1878) ; 

 otacilius Walker (1849); polygnotus Walker (1849); 



proclive Walker (1860) ; rhypae Walker (1849) ; ru- 

 foabdominalis Brunetti (1928); strigatum Enderlein 

 (1914); sumatranum Enderlein (1914); sura Walker 

 (1849) ; trimelas Walker (1851) ; vestitum Rondani 

 (1875); vica Walker (1849) [=spinitarse Macquart 

 (1849); whitei Brunetti (1928). 



Australian : Microstylmm testaceum Macquart 

 (1846). 



Oceania : Microstylum dimorphum Matsumura 

 (1916) ; scython Walker (1849). 



Country unknown: Microstylum albimystaceum 

 Macquart (1855) ; difficile Wiedemann (1828) ; fenes- 

 tratum Wiedemann (1828) ; fuscipenne Macquart 

 (1838) ; lugubris Wiedemann (1828) ; rufiventre Mac- 

 quart (1838). 



Subgenus Epiblepharis Bezzi 



Figures 490, 949, 958, 1753, 1860 



Epiblepharis Bezzi, Ann. Soc. Ent. Belgique, vol. 52, p. 375, 

 1908. Type of subgenus: Epiblepharis pedunculata Bezzi, 

 1908, by monotypy. 



Bezzi based the separation of Epiblepharis from 

 Microstylum Macquart on the presence of a number of 

 setae dorsally upon the third antennal segment and 

 the short petiole at the base of the second posterior cell. 

 Apart from this, the type which I have examined is in 

 every respect a typical species of Microstylum. In 

 species of Microstylum the base of the second posterior 

 cell varies from short petiolate to no petiole and barely 

 connected, to more commonly those species in which 

 the upper section of the intercalary vein is of varying 

 length between the posterior (medial) erossvein and 

 the main part of the fourth vein. The abundant setae 

 on the third antennal segment of Epiblepharis may 

 form a better basis of separation. Length 25 mm. 



Head, lateral aspect : The length of head is moderate, 

 rather flattened anteriorly; the anterior eye facets are 

 enlarged. The face is short. The occiput bears a row 

 of stout, black bristles which begin near the bottom and 

 become longer and stouter at the top. The proboscis 

 is quite long, directed forward, anteriorly attenuate, 

 and strongly compressed laterallj'. Palpus cylindrical, 

 elongate, black, apparently consisting of one segment. 



Head, anterior aspect : The face is pollinose with a 

 few delicate hairs below and a mystax composed of 8 

 quite strong, stout, downwardly curved, black bristles. 

 The face is one-fourth of the head width with parallel 

 sides; the front is slightly wider, the vertex scarcely 

 excavated; the ocellar protuberance is extremely low 

 and bears scattered long hairs. Sides of front with 

 7 or S long, weak, black bristles. 



Thorax : The mesonotum abrupt anteriorly, but only 

 slightly convex with scattered pile across the entire 

 dorsum which is also reddish pollinose. Humerus 

 with 2 or 3 black bristles. Notopleuron with 4 espe- 

 cially long, stout, black bristles ; supraalar with 1 long 

 black bristle. Postalar with 2, scutellar margin with 

 1 pair of bristles. The prescutellar area has 4 bristles 

 in 2 rows. Pleuron pollinose; mesopleuron with a few, 



