1 88 
Psyche 
[June 
Rs with about four simple branches; MA with 2-3 branches; MP 
forked 2-4 times; CuA with a series of four branches; CuP forming 
a long fork; anal area with about eight veins, mostly simple. Cross 
veins are not numerous and are not forming rows. Hind wing: 
length 57 mm, width 22.6 mm. Hind wing not much broadened, 
but with a rounded anal area. 
S. libelluloides differs from packardi as previously mentioned. 
Genus Becquerelia Brongniart 
Becquerelia Brongniart 1893: 356; Handlirsch, 1906: 105; Lameere, 1917: 
152. 
Pseudohecquerelia Handlirsch, 1919: 24. 
Type species: Becquerelia superba Brongniart, 1893 (SD, Hand- 
lirsch, 1906). 
This genus was erected by Brongniart in 1893 for four species, 
superba , tincta , grehanti , and elegans. Handlirsch (1906) designated 
superba as the type species and questioned the generic position of 
grehanti and indicated his uncertainty about elegans , because of its 
fragmentary nature. In 1919, however, Handlirsch erected the genus 
Pseudobecquerelia for elegans , although he put it in the Palaeodicty- 
optera incertae sedis. Lameere (1917: 152) suggested that grehanti 
be placed in Epitethe Handlirsch, as previously noted, and he con- 
sidered elegans as a true Becquerelia. 
In this paper, superba and tincta are considered to be very closely 
related; they may eventually turn out to be conspecific. Elegans 
is a small fragment, but probably belongs to Becquerelia , as it was 
considered by Lameere. Grehanti , on the other hand, is here desig- 
nated as the type species of a new genus, Tectoptilus. The following 
are the characteristics of Becquerelia , as they are indicated in superba 
and tincta ; included are some features not previously noted. 
Wings dark colored, with light transverse bands; cuticular thick- 
ening V-shaped, its apex on Ai ; anterior margin only slightly con- 
cave; postcostal area small, with a single vein. Sc long, terminating 
somewhat before apex; Ri with terminal branches; in the R-Rs 
area there are numerous long, oblique cross veins ; Rs pectinate, 
with six branches; M fused for a long distance with the stem of Rs; 
MA pectinate; MP forking several times; CuA pectinate; CuP 
forked; cross veins numerous, simple, but somewhat irregular. 
Becquerelia shows the same type of cuticular thickening as Horna- 
loneura elegans and bonnieri , but in place of the extra strengthening 
cross vein between M and R-Rs, as in Homaloneura , MA functions 
