LOBOSCELIDIINAE, NEW SPECIES AND A NEW 
GENUS FROM MALAYSIA 
(CHRYSIDIDAE, HYMENOPTERA) 
By Lynn Siri Kimsey 
Museum of Comparative Zoology 
Harvard University, Cambridge, MA 02138, USA 
Loboscelidiinae is one of the most aberrant and poorly under- 
stood groups of Chrysididae. Even the family placement of 
Loboscelidia Westwood has varied considerably over the years. 
Throughout this entire period, as recounted by Day (1978), none of 
the authors involved recognized the difference between the sexes. 
Maa and Yoshimoto (1961) treated them as separate genera, Lobo- 
scelidia (males) and Scelidoloba Maa and Yoshimoto (females). 
These wasps are strongly sexually dimorphic, making association 
of the sexes difficult. Males have a long slender flagellum and tend 
to be less robust looking than females. The female flagellum is short, 
flattened and broad. In addition, the sexes do not appear to share 
the same modifications of the face, mesopleuron, legs and scutellum 
within a species. However, the wing venation and development of 
the notauli is apparently the same in conspecific males and females. 
To further complicate matters fewer than 10% of the specimens in 
collections are female. 
Loboscelidia is characterized by having the antennae insert mid 
face; head prolonged posteriorly into a necklike projection; prono- 
tum not freely hinged to scutum; tegulae very large, covering both 
wing bases and held in place by a ridge on the mesopleuron; meso- 
pleuron smooth without sculpturing; propodeum without horizon- 
tal dorsal surface and with shelflike lateral projections; forewing 
lacking a stigma and costal vein, and the abdomen with 4 (females) 
or 5 (males) external gastral segments. 
A complete revision of this group would be premature at this 
point. However, there are a large number of new taxa in this sub- 
family, which need to be published in anticipation of a monograph 
on the family being prepared by myself and R. M. Bohart. 
Specimens were borrowed from the following institutions and 
individuals, type repositories are indicated by capital letters: 
Academia Sinica, Institute of Zoology Insect Collection, Beijing, 
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