376 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1919. 
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PLATE 4. 
Additional orthopterous insects. Natural size. 
. Stilpnochlora couloniana Sauss. A katydid from Florida. 
. Plagiostira albonotata variety brevipes Caud. A katydid with rudimentary 
wings, from Arizona. 
. Eggs of No. 1, attached to a twig. Florida. 
. Archimandrita marmorata Stoll. A cockroach from Nicaragua. 
. Young specimen of No. 4, from Costa Rica. 
Nore.—Nos. 1, 2, and 3 not previously figured. 
PLATE 5, 
Dragonflies (order Odonata). » Natural size. 
. Calopteryx splendens Harris, male, from Spain. 
. Rhinocypha fenestrella Rambur, male, from lower Siam. 
. Libellula cyanea Fabr., female, from Maryland. 
. Agrion dimidiatum variety apicale Burm., male, from Maryland. 
. Argia fumipennis Burm., male, from Florida. 
. Pseudoleon superbus Hagen, female, from Arizona. A Central American 
species ranging northward to our Southwest. 
. Nannothemis bella Uhler, female, from Maryland. 
. Perithemis domitia Drury, female. The specimen is from Maryland, but 
the species oceurs widely in tropical and eastern North America. 
. Celithemis elisa Hagen, female, from Maryland. 
PLATE 6. 
Neuropteroid insects. Natural size. 
Stilbopteryx costalis N. An ant lion from West Africa. 
. Ascalaphus ramburi McLachl., from Japan. 
. Panorpa nuptialis Gerst. A scorpion fly from Texas. 
. Polystoechotes punctatus Fabr., from California. 
. Acanthaclisis americana Drury. An ant lion from Virginia. 
PLATE 7. 
Two-winged flies (order Diptera) of the family Bombyliidae. Members of this 
family are parasitic in the larval stage upon other insects. All natural size. 
1. Exoprosopa pueblensis Jaennicke, from Mississippi; occurs southward to 
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Central America. 
. Exoprosopa capucina Fabricius, from Germany. 
Hyperalonia hela Erich., from Mexico; occurs in Guiana. 
. Exoprosopa limbipennis Macquart, from Canal Zone. 
Bombylius punctatus Fabr., from Dalmatia. 
Bombylius discolor Mikan, from Europe. 
Ezoprosopa dorcadion Osten Sacken, from Utah. 
. Exoprosopa fascipennis Say, from Utah. 
. Hyperalonia gargantua Knab, from Jamaica. Type. 
. Hyperalonia latreillei Macquart, from Guatemala. 
. Hyperalonia cerberus Fabr., from Porto Rico. 
. Spogostylum pluto Wied., from Mount Washington, N. H. 
. Hyperalonia tantalus Fabr., from Java. 
. Anthrax abbreviata Wied., from Paraguay. 
