270 ENTOMOLOGICAL NE\VS [Nov., '22 



tarsal segment on all legs deep black, subapical one brownish; apical 

 half of hind femora, a mark on apical half of hind tibiae, and most of 

 basal segment of hind tarsi black. Cross-veins and tips of wings 

 slightly clouded. 



Head as in calif ornica. None of the abdominal sternites with setulae, 

 the peduncle moderately narrow, as in lobata. Hind femora much 

 swollen ; hind tibiae transverse at apices. Length, 7 mm. 



Type, Plummers Island, Maryland, April 30. 1922. on 

 flowers of Alliaria officinalis (H. L. Viereck). Type in U. S. 

 National Museum. 



This species has the cross-veins more erect and the lower 

 posterior angle of the first posterior cell less rounded than most 

 species. The inner cross-vein is but little in front of middle 

 of discal cell. 



A New North American Genus of Cydnidae (Hem.). 



By E. P. VAN DUZEE, San Francisco, California,* Curator, 

 Department of Entomology, California Academy of Sciences. 



PSECTROCEPHALUS new genus 



Allied to Pangacus but wanting ocelli, and anterior margin 

 of the head armed with comb-teeth. Ovate, subdepressed, 

 sides nearly parallel. Head broadly rounded before ; cheeks 

 approaching at apex of tylus but scarcely forming a notch 

 there ; edge strongly reflexed, the depressed submargin armed 

 with alternating spines and bristles ; eyes small, closely set 

 against anterior angles of pronotum. Ocelli wanting. Anten- 

 nae five-jointed; segment II thinner and slightly longer than 

 those following. Rostrum reaching intermediate coxae ; seg- 

 ment I attaining base of head, III longest and thickest. Pro- 

 notum subquadrate; anterior margin shallowly excavated, 

 flattened and punctate but immarginate, armed with one 

 bristle behind inner angle of each eye ; sides ciliate, slenderly 

 but acutely carinate ; disk without transverse depression. 

 Scutellum a little longer than wide, apex narrowly rounded ; 

 punctate, with base nearly smooth. Corium scarcely exceeding 

 scutellum, quite uniformly and coarsely punctured, its apex 

 broadly, feebly arcuate; costa ciliate nearly to apex, the 



*Contributions from the California Academy of Sciences, No. 138. 



