136 FURTHER ILLUSTRATIONS OF 
abdomen is large and convex, the basal segment with a vellow 
fascia before the extremity, and behind the fascia marked with two 
slender elevated carinated strie. The second segment is large, 
with a yellow fascia, and with the entire surface marked with four- 
teen or fifteen transverse elevated carinated striz. The third and 
fourth segments are black and polished, the third with a slender 
pale yellow fascia, dilated into a round yellow spot at each side, 
and the fourth with a rather broader fascia, interrupted in the 
middle, and also dilated at the sides; the fifth segment is very 
deeply emarginate above for the reception of the sixth segment, 
which is very delicately transversely streaked at the base and sides, 
the extremity forming a thick truncated anal appendage (fig. 4 c, 
4d), rounded beneath, where it is marked by a semicircular impres- 
sion. The abdomen beneath is entire, with the fifth segment longi- 
tudinally striated. The length of the female is nearly six lines. 
The specimen of the male sent by Mr. MacLeay with this female 
is smaller than my individual, measuring only 103 lines in length, 
and having the head and thorax more coated with fine short hairs, 
my specimen having been injured by the attacks of insects. 
Mr. MacLeay has forwarded this species under the name of T. 
interruptus, Leach, being the same name as is applied to the male 
in the British Museum collection, and which was thence adopted 
by mein p. 115. As, however, Dr. Klug has described a species 
from Southern Brazil with the same name, | have been compelled 
to give it a new specific denomination. 
THYNNUS SHUCKARDI, Guérin. 
(Mater. s. 1. Thynnides, Mag. de Zool. 1842, pl. 100, fig. 13 ¢. T. ferrugineus, Leach MSS.) 
The male of this insect having been described and figured by M. 
Guérin Méneville, in the Magasin de Zoologie for 1842, I have 
not thought it necessary to refigure it; but as Mr. Hope has 
received both sexes from Mr. MacLeay, I have figured the female, 
and added M. Guérin’s description of the male, which is as follows :— 
Maie—‘‘ Noir chaperon et. base des mandibules jaunes, téte et 
abdomen [thorax* | couverts d’un duvet jaune trés-dense et a reflets 
dorés soyeux. Dessus de l'abdomen d’un jaune ferrugineux, plus 
pale 4 la base avec la plaque inférieure du dernier segment trés- 
saillante en arriére lancéolée, stri¢e transversalement et terminée 
* J presume that M. Guérin has made a mistake, by describing the abdomen instead of the 
thorax as covered with down, the abdomen being naked in the section of the genus to which 
T. Shuckardi belongs. 
