THE CANADIAN ENTOMOLOGIST. 205 



FOUR NEW SPECIES OF HYMENOPTERA. 



Chalcidoidea, Encyrtid.e. 

 by a. b. gahan, maryland experiment station. 



The following new species of Hymenoptera are deemed of sufficient 

 interest to warrant description. The two species of Eupelntus were reared 

 by the writer during the past season, while the other two species were 

 found accessioned but unidentified in the collection of the Experiment 

 Station. Types of all the species have been placed in the United States 

 National Museum. 



Etipelmus brevicauda, n. sp. 



Female : Head transverse, as wide as the thorax, somewhat coarsely 

 and densely punctate with silvery-white pubescence on the cheeks and face 

 below antennae ; brassy-green, except the eyes, which are without 

 pubescence. Antennnal scape not especially long, flattened on side next 

 to eyes, cupreus-green ; flagellum subclavate, obliquely truncate at the tip, 

 pilose ; pedicel and two or three following joints brassy ; remaining joints 

 darker, nearly black. Prothorax short, narrowed in front, cupreus ; 

 mesoscutum with broad longitudinal depression in the middle, green with 

 bright cupreus reflections and with sparse white pubescence, very finely 

 punctate ; sternum and pleurse shagreened, dark metallic-green, former 

 with sparse white pubescence, the latter bare : axillae slighily separated, 

 scutellum rounded behind and unicolorous with the mesoscutum. Wings 

 very slightly and uniformly fuliginous. Fore and hind coxae metallic-green, 

 median pair darker ; trochanters yellowish ; fore and middle femora and 

 tibiae brownish-yellow, hind femora dark brown, the hind tibiae with basal 

 half brown and apical half light yellow ; all tarsi with ist joint whitish, 

 following joints brown, last joint and ungues black. Abdomen hairy, with 

 dorsal segments 1-4 deeply incised, dark purplish, except at base, which is 

 bright metallic-green. Ovipositor sheath short, black, except apex, which 

 is yellowish ; ovipositor slightly exserted and yellowish. Length, 3.5 mm. 



Described from five female specimens reared from eggs of Mantis sp. 

 at College Park, Md., and two female from Galveston, Texas, also reared 

 from Mantis eggs. The Texas specimens were loaned by the United 

 States National Museum. 



Etipelmus mompho'., n.sp. 



Female : Head slightly wider than the thorax, rugosely sculptured, 

 tending to parallel wrinkles on the vertex, temples, and cheeks, brassy- 

 green with more or less purple about the bases of the antennae ; antennae 



June, 1910 



