SPONGILLA-FLIES — PARFIN AND GURNEY 471 



type of '^Hemerobe velu rioir," Dr. Iicu6 Malaise of the Riksmuseum, 

 Stockholm, kindly replied that "out of seven species labelled in the 

 DeGeer collection under the genus Hemerobe the velu noir is the only 

 one lacldng an insect. The type must have been missing already 

 when the collection was reai-ranged more than (one) hundred years 

 ago (in 1844), as there is no pin-hole under the name." In this 

 paper, Hemerobius niger is not recognized because of its doubtful 

 status, but the well known name of Sisyra juscata is recognized instead. 



Concerning the other synonyms {confinis, fumatus, morio, nigri- 

 pennis, and nitidulus) (Killington, 1936, p. 230; Nav^s, 1935, p, 43) 

 it was not possible to procure the types and compare them, since they 

 are variously located. The descriptions, however, appear to agree 

 with fuscata. It is not definitely known whether Westwood's larva 

 of Branchiotoma spongillae was compared with the other British species 

 of Sisyra {dalii,fuscata, terminalis) and found to hefuscata. 



S. Juscata, the darkest species of Sisyra, is readily distinguished 

 from vicaria and apiealis by the characters pointed out in the key, 



Sisyra apicalis Banks 



Figure 16; Pirate 1, fioubb 1 

 Sisyra apicalis Banks, 1908, p. 261 (Havana, Cuba). — Nav^s, 1935, p. 66. 



Head with vertex from yellowish to dark brown, usually a narrow 

 black ring around antennal sockets, coronal sulcus from posterior 

 margin to midvertex sometimes indistinct; face light brown to yel- 

 lowish; palpi yellowish to brownish; basal antennal segments light 

 brown to blackish, the following 17 segments (approximately) blackish 

 brown, the next 15 (approximately) yellow and the 3-5 terminal ones 

 fuscous (about 36-38 segments altogether); legs yellow, with some 

 brown occasionally, mesothoracic and metathoracic coxae brown, 

 pro thoracic coxae lighter; thorax dark brown; abdomen dark brown 

 or blackish. 



FoREWiNG (pi. 1, fig. 1): Average length female 4.4 mm., male 

 4.3 mm., average width female 1.7 mm., male 1.6 mm.; membrane 

 with distinct brown intervenational streaks margined with pale adja- 

 cent to longitudinal veins; sectoral branches with terminal forks near 

 margin usually far distad of level of junction of Sc and Rl; MA with 

 terminal fork which may be basad to above point; MPH-2 with even 

 fork to margin; Cul with 4-6 parallel branches to margin; approxi- 

 mately 10-12 (11 most common) costal cross-veins before pterostigma; 

 usually two radial cross-veins (rarely only one) , or with a third cross- 

 vein close to 2d r (irregular), 1st r usually basal to midpoint of free 

 stem of Rs, 2d r near point of forking of R2 and R3 ; 1st r-m from R4 -|- 5 

 to MA (near where it separates from Rs), Rs, or to fork. 



