1012 REPORT OF THE HARVARD AFRICAN EXPEDITION 
This unusually interesting crane-fly is named in honor of the collector, Dr. 
Joseph Bequaert, distinguished authority on the fauna and geography of tropical 
Africa. 
Helius cacoxena (Alexander) 
1920. Rhamphidia cacoxena Alexander; Ann. Mag. Nat. Hist., (9) 6:22. 
The unique type, a female, was from Ilesha, southern Nigeria, taken August 
17, 1910, by Captain L. E. H. Humfrey. In the present series, a second female, 
from the Firestone Plantation No. 3, Du River, Liberia, July 27, 1926, collected 
by Dr. Bequaert. The wing is shown in Fig. 10, 4. 
HEXATOMINI 
Eriocera monroviae, new species 
Text Fig. No. 10, 6 
Male. — Length about 13-15 mm.; wing 13-15 mm. 
Female. — Length about 14 mm.; wing 12 mm. 
Described from alcoholic specimens. 
Characters as in E. leonensis Alexander, differing chiefly in the details of coloration, especially 
of the thoracic pleura and abdomen. 
Mouthparts very reduced. Antennae short in both sexes; scape yellow; flagellum dark. 
Head orange. 
Mesonotum with the praescutum and anterior scutal lobes virtually covered by black stripes, 
on the former restricting the pale color to the restricted humeral region and posterior interspaces; 
posterior portion of scutal lobes, median area of scutum, the scutellum and postnotum yellow. 
Pleura chiefly obscure yellow, only the dorsal region and anepisternum darkened; cephalic margin 
of the sternopleurite and the cephalic face of the coxae lined with brown. Legs with the coxae 
chiefly yellow, especially the fore coxae; trochanters obscure yellow; remainder of legs black, the 
femoral bases narrowly obscure yellow, more broadly so on the femora. Wings (Fig. 10, 5) with 
a strong brown suffusion, the base and costal cell more suffused; veins darker. Venation: 
Rs unusually long; Ry shorter than Ry +3; Ri +2exceeding R2+3+4; cell M, lacking; m-cu about 
one-third its length beyond the fork of M. 
Abdomen chiefly yellow, including the basal segments and the hypopygium, the subterminal 
segments, especially of the sternites, blackened. 
The female is similar to the male but has the legs shorter, the fore femora with a vague sub- 
terminal pale annulus. 
Hab. LiBERtia. 
Holotype, alcoholic ~#, Banga, in deep woods, October 24, 1926 (J. Bequaert). 
Allotype, ¢, Firestone Plantation No. 3, right bank of Du River, August 2, 
1926 (J. Bequaert). Paratopotypes,2 23°; paratype, #, in copula with the female. 
The West African species of EHriocera, leonensis Alexander, commutabilis 
Alexander, flavocincta Alexander, and monroviae, sp. n., are obviously closely 
allied and are separated chiefly on details of coloration. The following key to 
the Ethiopian species of Hriocera shows this relationship. 
1. Cell 1M, of the wings present. 
(Madagascar) obscura (Bigot). 
Call Ais of lhe Witte PRM soe scece« cals ad ww hare pair Pee A a ee ee eee 2. 
2. Rs +3+4 subequal to or shorter than Rs +4, R» far basad of the fork of Ry. 
(Seychelles) lutevpennis Edwards. 
Rs «3+ 4 much longer than R3 +4, the latter in most cases lacking, Ry forking basad 
